AbstractContentAssistVisitor (EclipseLink 2.6.9, API Reference)

java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
- - org.eclipse.persistence.jpa.jpql.tools.AbstractContentAssistVisitor

All Implemented Interfaces:

ExpressionVisitor

Direct Known Subclasses:

DefaultContentAssistVisitor, EclipseLinkContentAssistVisitor
```
public abstract class AbstractContentAssistVisitor
extends AnonymousExpressionVisitor
```
The visitor provides support for finding the possible proposals within a JPQL query at a certain position.
Provisional API: This interface is part of an interim API that is still under development and expected to change significantly before reaching stability. It is available at this early stage to solicit feedback from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken (repeatedly) as the API evolves.

Version:

2.5

Author:

Pascal Filion

Since:

2.4

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`protected static class`	`AbstractContentAssistVisitor.AbstractAppendableExpressionVisitor`
`protected static class`	`AbstractContentAssistVisitor.AbstractConditionalClauseCollectionHelper<T extends Expression>` This helper handles adding proposals within a conditional expression that might be parsed as a single expression or has a collection of expression, which means the fragment is either incomplete or invalid.
`protected static class`	`AbstractContentAssistVisitor.AbstractFromClauseStatementHelper<T extends AbstractSelectStatement>`
`protected static class`	`AbstractContentAssistVisitor.AbstractGroupByClauseStatementHelper<T extends AbstractSelectStatement>`
`protected static class`	`AbstractContentAssistVisitor.AbstractHavingClauseStatementHelper<T extends AbstractSelectStatement>`
`protected static class`	`AbstractContentAssistVisitor.AbstractSelectClauseCollectionHelper<T extends AbstractSelectClause>`
`protected static class`	`AbstractContentAssistVisitor.AbstractSelectClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.AbstractWhereClauseSelectStatementHelper<T extends AbstractSelectStatement>`
`protected static class`	`AbstractContentAssistVisitor.AcceptableTypeVisitor` This visitor retrieves the permitted type from the path expression's parent.
`protected static class`	`AbstractContentAssistVisitor.AppendableExpressionVisitor` This visitor scans the visited `Expression` and determines if a JPQL identifier can be added ("appended") when the position of the cursor is at the end of the expression.
`protected static class`	`AbstractContentAssistVisitor.AppendableType` This is used to determine how `AbstractContentAssistVisitor.AppendableExpressionVisitor` should perform the check.
`protected static interface`	`AbstractContentAssistVisitor.CollectionExpressionHelper<T extends Expression>` This helper is used to determine how to add proposals within a collection of expressions.
`protected static class`	`AbstractContentAssistVisitor.CollectionExpressionVisitor` This visitor retrieves the `CollectionExpression` if it is visited.
`protected static class`	`AbstractContentAssistVisitor.CollectionMappingFilter`
`protected static class`	`AbstractContentAssistVisitor.ConcatExpressionCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.ConditionalClauseCollectionHelper` This helpers handles adding proposals for `AbstractConditionalClause`.
`protected static class`	`AbstractContentAssistVisitor.ConstrutorCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.DeclarationVisitor`
`protected static class`	`AbstractContentAssistVisitor.DefaultMappingCollector` The default implementation of `AbstractContentAssistVisitor.MappingCollector`, which simply returns an empty collection.
`protected static class`	`AbstractContentAssistVisitor.DeleteClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.DeleteClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.DifferentComparisonFilter`
`protected static class`	`AbstractContentAssistVisitor.DoubleEncapsulatedCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.EncapsulatedExpressionVisitor`
`protected static class`	`AbstractContentAssistVisitor.EndingQueryPositionBuilder` This builder populates a `QueryPosition` by traversing the valid portion of the JPQL query.
`protected static class`	`AbstractContentAssistVisitor.EnumVisitor` This visitor determines whether a path expression can be resolved as a fully qualified enum type and an enum constant.
`protected static class`	`AbstractContentAssistVisitor.FilteringMappingCollector` This `AbstractContentAssistVisitor.MappingCollector` returns the possible mappings (non-collection type or collection type) from a managed type.
`protected static class`	`AbstractContentAssistVisitor.FollowingClausesVisitor`
`protected static class`	`AbstractContentAssistVisitor.FollowingInvalidExpressionVisitor`
`protected static class`	`AbstractContentAssistVisitor.FromClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.FromClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.GroupByClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.GroupByClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.HavingClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.IdentificationVariableType` The various ways of retrieving identification variables from the declaration expression.
`protected static class`	`AbstractContentAssistVisitor.IncompleteCollectionExpressionVisitor` This visitor is used when a clause or a compound expression was parsed with a collection of expressions representing an invalid fragment.
`protected static class`	`AbstractContentAssistVisitor.InvalidExpressionVisitor` This visitor determines if the visited `Expression` is one of the two that represents an invalid expression.
`protected static class`	`AbstractContentAssistVisitor.JoinCollectionHelper`
`protected static interface`	`AbstractContentAssistVisitor.MappingCollector` A collector is responsible to retrieve the possible proposals by using the mappings that can complete a path expression.
`protected static class`	`AbstractContentAssistVisitor.MappingFilterBuilder` This visitor is responsible to create the right `Filter` based on the type of the `Expression`.
`protected static class`	`AbstractContentAssistVisitor.MappingTypeFilter` This `Filter` is responsible to filter out the mappings that can't have their type assignable to the one passed in.
`protected static class`	`AbstractContentAssistVisitor.NotExpressionVisitor`
`protected static class`	`AbstractContentAssistVisitor.OrderByClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.OrderByClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.PropertyMappingFilter`
`protected static class`	`AbstractContentAssistVisitor.RangeVariableDeclarationVisitor`
`protected static class`	`AbstractContentAssistVisitor.ResultVariableVisitor`
`protected static class`	`AbstractContentAssistVisitor.SelectClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.SelectClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleFromClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleGroupByClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleSelectClauseCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleSelectClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.SimpleWhereClauseSelectStatementHelper`
`protected static interface`	`AbstractContentAssistVisitor.StatementHelper<T extends Expression>` This helper helps to add JPQL identifiers for the clauses that make up a query statement and also chains the clauses within the query.
`protected static class`	`AbstractContentAssistVisitor.SubqueryAppendableExpressionVisitor`
`protected static class`	`AbstractContentAssistVisitor.SubqueryVisitor` This visitor determines if an `Expression` is in a subquery.
`protected static class`	`AbstractContentAssistVisitor.TripleEncapsulatedCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.UpdateClauseStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.UpdateItemCollectionHelper`
`protected static class`	`AbstractContentAssistVisitor.VisitParentVisitor` This visitor is meant to adjust the corrections stack when traversing an `Expression` in order to increase the list of valid proposals.
`protected static class`	`AbstractContentAssistVisitor.WhenClauseConditionalClauseCollectionHelper` This helpers handles adding proposals for `WhenClause`.
`protected static class`	`AbstractContentAssistVisitor.WhereClauseDeleteStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.WhereClauseSelectStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.WhereClauseUpdateStatementHelper`
`protected static class`	`AbstractContentAssistVisitor.WithinInvalidExpressionVisitor`

Field Summary

Fields
Modifier and Type	Field and Description
`protected java.util.Stack<java.lang.Integer>`	`corrections` This is used to change the position of the cursor in order to add possible proposals
`protected java.util.Map<java.lang.Class<?>,java.lang.Object>`	`helpers` The cached helpers that are used by this visitor to add valid content assist proposals.
`protected java.util.Map<java.lang.String,Filter<Expression>>`	`identifierFilters` This map contains the `Filter` that is used to determine when an identifier is a valid proposal, some of them depends on the expression's type.
`protected static Filter<Expression>`	`INVALID_IDENTIFIER_FILTER` This `Filter` is used to say the `Expression` is invalid without doing anything.
`protected java.util.Stack<Expression>`	`lockedExpressions` Used to prevent and infinite recursion when one of the visit method is virtually asking a child expression to be visited.
`protected DefaultContentAssistProposals`	`proposals` The set of possible proposals gathered based on the position in the query.
`protected JPQLQueryContext`	`queryContext` The context used to query information about the JPQL query.
`protected QueryPosition`	`queryPosition` Contains the position of the cursor within the parsed `Expression` from the root node up to the deepest leaf node.
`protected static int`	`SPACE_LENGTH` A constant for the length of a whitespace, which is 1.
`protected static Filter<Expression>`	`VALID_IDENTIFIER_FILTER` This `Filter` is used to say the `Expression` is valid without doing anything.
`protected java.util.Stack<java.lang.Integer>`	`virtualSpaces` A virtual space is used to move the position of the cursor by adding an extra space in order to find some proposals within an expression.
`protected java.lang.String`	`word` The current word, which was retrieved from the JPQL query based on the position of the cursor.
`protected WordParser`	`wordParser` This is used to retrieve words from the actual JPQL query.

Constructor Summary

Constructors
Modifier Constructor and Description

protected AbstractContentAssistVisitor(JPQLQueryContext queryContext)
Creates a new AbstractContentAssistVisitor.

Constructors
Modifier	Constructor and Description
`protected`	`AbstractContentAssistVisitor(JPQLQueryContext queryContext)` Creates a new `AbstractContentAssistVisitor`.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected void`	`addAggregateIdentifier(java.lang.String identifier)` Adds the given JPQL identifier as a valid proposal if its role is `IdentifierRole.AGGREGATE` and the beginning starts with the current word.
`protected void`	`addAggregateIdentifiers(JPQLQueryBNF queryBNF)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.AGGREGATE` and the beginning starts with the current word.
`protected void`	`addAggregateIdentifiers(java.lang.String queryBNFId)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.AGGREGATE` and the beginning starts with the current word.
`protected void`	`addArithmeticIdentifiers()` Adds the JPQL identifiers which correspond to the arithmetic operators as valid proposals.
`protected void`	`addClauseIdentifier(java.lang.String identifier)` Adds the given JPQL identifier as a valid proposal if its role is `IdentifierRole.CLAUSE` and the beginning starts with the current word.
`protected void`	`addClauseIdentifiers(JPQLQueryBNF queryBNF)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.CLAUSE` and the beginning starts with the current word.
`protected void`	`addClauseIdentifiers(java.lang.String queryBNFId)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.CLAUSE` and the beginning starts with the current word.
`protected void`	`addComparisonIdentifiers(Expression expression)` Adds the JPQL identifiers which correspond to the comparison operators as valid proposals.
`protected void`	`addCompositeIdentifier(java.lang.String identifier, int offset)` Adds the composite JPQL identifier by following the given rules: If the word is empty and the offset is -1, then use the rule used by `addIdentifier(String)`; Otherwise checks the ending of the JPQL query with a portion of the identifier from the entire length of the identifier to the given offset by cutting off the trailing characters.
`protected void`	`addCompoundIdentifier(java.lang.String identifier, Expression expression, boolean hasIs, boolean hasNot)` Adds the given JPQL identifier as a valid proposal if its role is `IdentifierRole.COMPOUND_FUNCTION` and the beginning starts with the current word.
`protected void`	`addCompoundIdentifiers(JPQLQueryBNF queryBNF, Expression expression, boolean hasIs, boolean hasNot)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.COMPOUND_FUNCTION` and the beginning starts with the current word.
`protected void`	`addCompoundIdentifiers(java.lang.String queryBNFId, Expression expression, boolean hasIs, boolean hasNot)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.COMPOUND_FUNCTION` and the beginning starts with the current word.
`protected void`	`addEntities()` Adds the entities as possible content assist proposals but will be filtered using the current word.
`protected void`	`addEntities(IType type)` Adds the entities as possible content assist proposals but will be filtered using the current word and the entity's type will have to be assignable from the given `IType`.
`protected void`	`addEnumConstant(IType enumType, java.lang.String enumConstant)` Adds the given enum constant as a valid proposal.
`protected void`	`addEnumConstants(IType enumType, java.lang.String word)` Adds the constants of the given enum type as valid proposals if the beginning starts with the given word.
`protected void`	`addExpressionFactoryIdentifiers(ExpressionFactory expressionFactory)` Adds the JPQL identifiers that were registered with the given `ExpressionFactory`.
`protected void`	`addExpressionFactoryIdentifiers(java.lang.String expressionFactoryId)` Adds the JPQL identifiers that were registered with the `ExpressionFactory` with the given unique identifier.
`protected void`	`addFunctionIdentifier(java.lang.String identifier)` Adds the given JPQL identifier as a valid proposal if its role is `IdentifierRole.FUNCTION` and the beginning starts with the current word.
`protected void`	`addFunctionIdentifiers(Expression expression)` Adds the JPQL identifiers for which their role is `FUNCTION` by determining the `JPQLQueryBNF` that represents the fragment for which the given `Expression` was parsed.
`protected void`	`addFunctionIdentifiers(JPQLQueryBNF queryBNF)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.FUNCTION` and the beginning starts with the current word.
`protected void`	`addFunctionIdentifiers(java.lang.String queryBNFId)` Adds the JPQL identifiers that are registered with the given `JPQLQueryBNF` as valid proposals if their role is `IdentifierRole.FUNCTION` and the beginning starts with the current word.
`protected void`	`addIdentificationVariable(java.lang.String identificationVariable)` Adds the given identification variable as a valid proposal.
`protected void`	`addIdentificationVariables()` Adds all the identification variables defined in the current query's FROM clause.
`protected void`	`addIdentificationVariables(Expression expression, AbstractContentAssistVisitor.IdentificationVariableType type)` Adds the possible identification variables as valid proposals but filter them based on the given type.
`protected void`	`addIdentifier(java.lang.String identifier)` Adds the given identifier as a proposal if it passes the checks.
`protected void`	`addJoinIdentifiers()` Adds the join specification identifiers as proposals.
`protected void`	`addLeftIdentificationVariables(Expression expression)` Adds the identification variables defined in the current query's FROM clause that are declared before the given `Expression`.
`protected void`	`addLogicalIdentifiers()` Adds the logical identifiers, which are `AND` and `OR`.
`protected void`	`addRangeIdentificationVariable(java.lang.String identificationVariable)` Adds the given identification variable as a proposal if it passes the checks.
`protected void`	`addResultVariables()` Adds the result variables defined in the `SELECT` clause as valid proposals.
`protected void`	`addVirtualSpace()` Adds a virtual space on the stack.
`protected boolean`	`areArithmeticSymbolsAppendable(Expression expression)` Determines whether the given `Expression` can be followed by an arithmetic operator.
`protected boolean`	`areComparisonSymbolsAppendable(Expression expression)` Determines whether the given `Expression` can be followed by a comparison operator.
`protected boolean`	`areLogicalSymbolsAppendable(Expression expression)` Determines whether the given `Expression` can be followed by a logical operator.
`protected abstract AbstractContentAssistVisitor.AcceptableTypeVisitor`	`buildAcceptableTypeVisitor()`
`protected AbstractContentAssistVisitor.AppendableExpressionVisitor`	`buildAppendableExpressionVisitor()`
`protected Filter<Expression>`	`buildCollectionCompoundTypeFilter()`
`protected AbstractContentAssistVisitor.CollectionExpressionVisitor`	`buildCollectionExpressionVisitor()`
`protected AbstractContentAssistVisitor.CollectionMappingFilter`	`buildCollectionMappingFilter()`
`protected AbstractContentAssistVisitor.ConcatExpressionCollectionHelper`	`buildConcatExpressionCollectionHelper()`
`protected AbstractContentAssistVisitor.ConditionalClauseCollectionHelper`	`buildConditionalClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.ConstrutorCollectionHelper`	`buildConstrutorCollectionHelper()`
`protected AbstractContentAssistVisitor.DeclarationVisitor`	`buildDeclarationVisitor()`
`protected AbstractContentAssistVisitor.DefaultMappingCollector`	`buildDefaultMappingCollector()`
`protected AbstractContentAssistVisitor.DeleteClauseCollectionHelper`	`buildDeleteClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.DeleteClauseStatementHelper`	`buildDeleteClauseStatementHelper()`
`protected Filter<Expression>`	`buildDifferentComparisonFilter()`
`protected AbstractContentAssistVisitor.DoubleEncapsulatedCollectionHelper`	`buildDoubleEncapsulatedCollectionHelper()`
`protected AbstractContentAssistVisitor.EncapsulatedExpressionVisitor`	`buildEncapsulatedExpressionVisitor()`
`protected QueryPosition`	`buildEndingPositionFromInvalidExpression(Expression invalidExpression, Expression startingPointExpression, boolean[] virtualSpace)` Creates a new `QueryPosition` containing the corrected positions starting at the given `Expression` and traversing the children at is always at the right side of the tree.
`protected AbstractContentAssistVisitor.EndingQueryPositionBuilder`	`buildEndingQueryPositionBuilder()`
`protected AbstractContentAssistVisitor.EnumVisitor`	`buildEnumVisitor()`
`protected AbstractContentAssistVisitor.FilteringMappingCollector`	`buildFilteringMappingCollector(AbstractPathExpression expression, Resolver resolver, Filter<IMapping> filter, java.lang.String pattern)`
`protected AbstractContentAssistVisitor.FollowingClausesVisitor`	`buildFollowingClausesVisitor()`
`protected AbstractContentAssistVisitor.FollowingInvalidExpressionVisitor`	`buildFollowingInvalidExpressionVisitor()`
`protected AbstractContentAssistVisitor.FromClauseCollectionHelper`	`buildFromClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.FromClauseStatementHelper`	`buildFromClauseStatementHelper()`
`protected AbstractContentAssistVisitor.GroupByClauseCollectionHelper`	`buildGroupByClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.GroupByClauseStatementHelper`	`buildGroupByClauseStatementHelper()`
`protected AbstractContentAssistVisitor.HavingClauseStatementHelper`	`buildHavingClauseStatementHelper()`
`protected AbstractContentAssistVisitor.IncompleteCollectionExpressionVisitor`	`buildIncompleteCollectionExpressionVisitor()`
`protected AbstractContentAssistVisitor.InvalidExpressionVisitor`	`buildInvalidExpressionVisitor()`
`protected AbstractContentAssistVisitor.JoinCollectionHelper`	`buildJoinCollectionHelper()`
`protected AbstractValidator.JPQLQueryBNFValidator`	`buildJPQLQueryBNFValidator(JPQLQueryBNF queryBNF)` Returns the `AbstractValidator.JPQLQueryBNFValidator` that can be used to validate an `Expression` by making sure its BNF is part of the given BNF.
`protected AbstractContentAssistVisitor.MappingCollector`	`buildMappingCollector(AbstractPathExpression expression, Resolver resolver, Filter<IMapping> filter)`
`protected Filter<IMapping>`	`buildMappingFilter(AbstractPathExpression expression, Filter<IMapping> filter)`
`protected Filter<IMapping>`	`buildMappingFilter(Expression expression)`
`protected AbstractContentAssistVisitor.MappingFilterBuilder`	`buildMappingFilterBuilder()`
`protected Filter<Expression>`	`buildNonCollectionCompoundTypeFilter()`
`protected AbstractContentAssistVisitor.NotExpressionVisitor`	`buildNotExpressionVisitor()`
`protected AbstractContentAssistVisitor.OrderByClauseCollectionHelper`	`buildOrderByClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.OrderByClauseStatementHelper`	`buildOrderByClauseStatementHelper()`
`protected AbstractContentAssistVisitor.PropertyMappingFilter`	`buildPropertyMappingFilter()`
`ContentAssistProposals`	`buildProposals(int position)` Prepares this visitor by prepopulating it with the necessary data that is required to properly gather the list of proposals based on the given caret position.
`ContentAssistProposals`	`buildProposals(int position, ContentAssistExtension extension)` Prepares this visitor by prepopulating it with the necessary data that is required to properly gather the list of proposals based on the given caret position.
`protected AbstractContentAssistVisitor.RangeVariableDeclarationVisitor`	`buildRangeVariableDeclarationVisitor()`
`protected AbstractContentAssistVisitor.ResultVariableVisitor`	`buildResultVariableVisitor()`
`protected AbstractContentAssistVisitor.SelectClauseCollectionHelper`	`buildSelectClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.SelectClauseStatementHelper`	`buildSelectClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleFromClauseStatementHelper`	`buildSimpleFromClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleGroupByClauseStatementHelper`	`buildSimpleGroupByClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper`	`buildSimpleHavingClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleSelectClauseCollectionHelper`	`buildSimpleSelectClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.SimpleSelectClauseStatementHelper`	`buildSimpleSelectClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleWhereClauseSelectStatementHelper`	`buildSimpleWhereClauseSelectStatementHelper()`
`protected AbstractContentAssistVisitor.SubqueryAppendableExpressionVisitor`	`buildSubqueryAppendableExpressionVisitor()`
`protected AbstractContentAssistVisitor.SubqueryVisitor`	`buildSubqueryVisitor()`
`protected AbstractContentAssistVisitor.TripleEncapsulatedCollectionHelper`	`buildTripleEncapsulatedCollectionHelper()`
`protected AbstractContentAssistVisitor.UpdateClauseStatementHelper`	`buildUpdateClauseStatementHelper()`
`protected AbstractContentAssistVisitor.UpdateItemCollectionHelper`	`buildUpdateItemCollectionHelper()`
`protected AbstractContentAssistVisitor.VisitParentVisitor`	`buildVisitParentVisitor()`
`protected AbstractContentAssistVisitor.WhenClauseConditionalClauseCollectionHelper`	`buildWhenClauseConditionalClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.WhereClauseDeleteStatementHelper`	`buildWhereClauseDeleteStatementHelper()`
`protected AbstractContentAssistVisitor.WhereClauseSelectStatementHelper`	`buildWhereClauseSelectStatementHelper()`
`protected AbstractContentAssistVisitor.WhereClauseUpdateStatementHelper`	`buildWhereClauseUpdateStatementHelper()`
`protected AbstractContentAssistVisitor.WithinInvalidExpressionVisitor`	`buildWithinInvalidExpressionVisitor()`
`void`	`dispose()` Disposes of the internal data.
`protected RangeVariableDeclaration`	`findRangeVariableDeclaration(UpdateClause expression)` Retrieves the `RangeVariableDeclaration` that defines the entity name and identification variable for the given `UpdateClause`.
`protected IType`	`getAcceptableType(Expression expression)` Determines the root `IType` that any type should be assignable.
`protected AbstractContentAssistVisitor.AppendableExpressionVisitor`	`getAppendableExpressionVisitor()`
`protected CollectionExpression`	`getCollectionExpression(Expression expression)` Casts the given `Expression` to a `CollectionExpression` if it is actually an object of that type.
`protected AbstractContentAssistVisitor.CollectionExpressionVisitor`	`getCollectionExpressionVisitor()` Returns the visitor that collects the `CollectionExpression` if it's been visited.
`protected AbstractContentAssistVisitor.ConcatExpressionCollectionHelper`	`getConcatExpressionCollectionHelper()`
`protected AbstractContentAssistVisitor.ConditionalClauseCollectionHelper`	`getConditionalClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.ConstrutorCollectionHelper`	`getConstructorCollectionHelper()`
`protected AbstractContentAssistVisitor.DeclarationVisitor`	`getDeclarationVisitor()`
`protected AbstractContentAssistVisitor.MappingCollector`	`getDefaultMappingCollector()`
`protected AbstractContentAssistVisitor.DeleteClauseCollectionHelper`	`getDeleteClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.DeleteClauseStatementHelper`	`getDeleteClauseStatementHelper()`
`protected AbstractContentAssistVisitor.DoubleEncapsulatedCollectionHelper`	`getDoubleEncapsulatedCollectionHelper()`
`protected AbstractContentAssistVisitor.EncapsulatedExpressionVisitor`	`getEncapsulatedExpressionVisitor()`
`protected AbstractContentAssistVisitor.EndingQueryPositionBuilder`	`getEndingQueryPositionBuilder()`
`protected AbstractContentAssistVisitor.EnumVisitor`	`getEnumVisitor()`
`protected ExpressionFactory`	`getExpressionFactory(java.lang.String expressionFactoryId)` Retrieves the registered `ExpressionFactory` that was registered for the given unique identifier.
`protected AbstractContentAssistVisitor.AcceptableTypeVisitor`	`getExpressionTypeVisitor()`
`protected Filter<Expression>`	`getFilter(java.lang.String identifier)`
`protected AbstractContentAssistVisitor.FollowingClausesVisitor`	`getFollowingClausesVisitor()`
`protected AbstractContentAssistVisitor.FollowingInvalidExpressionVisitor`	`getFollowingInvalidExpressionVisitor()`
`protected AbstractContentAssistVisitor.FromClauseCollectionHelper`	`getFromClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.FromClauseStatementHelper`	`getFromClauseStatementHelper()`
`protected AbstractContentAssistVisitor.GroupByClauseCollectionHelper`	`getGroupByClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.GroupByClauseStatementHelper`	`getGroupByClauseStatementHelper()`
`protected AbstractContentAssistVisitor.HavingClauseStatementHelper`	`getHavingClauseStatementHelper()`
`protected <T> T`	`getHelper(java.lang.Class<T> helperClass)` Retrieves the helper associated with the given helper class.
`protected IdentifierRole`	`getIdentifierRole(java.lang.String identifier)` Retrieves the role of the given identifier.
`protected AbstractContentAssistVisitor.IncompleteCollectionExpressionVisitor`	`getIncompleteCollectionExpressionVisitor()`
`protected AbstractContentAssistVisitor.InvalidExpressionVisitor`	`getInvalidExpressionVisitor()`
`protected AbstractContentAssistVisitor.JoinCollectionHelper`	`getJoinCollectionHelper()`
`protected abstract JPQLGrammar`	`getLatestGrammar()` Returns the latest supported JPQL grammar, which is required when checking the validity of a JPQL identifier.
`protected Filter<IMapping>`	`getMappingCollectionFilter()`
`protected AbstractContentAssistVisitor.MappingFilterBuilder`	`getMappingFilterBuilder()`
`protected Filter<IMapping>`	`getMappingPropertyFilter()`
`protected AbstractContentAssistVisitor.NotExpressionVisitor`	`getNotExpressionVisitor()`
`protected AbstractContentAssistVisitor.OrderByClauseCollectionHelper`	`getOrderByClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.OrderByClauseStatementHelper`	`getOrderByClauseStatementHelper()`
`protected JPQLQueryBNF`	`getQueryBNF(java.lang.String queryBNFId)` Retrieves the `JPQLQueryBNF` that was registered for the given unique identifier.
`protected AbstractContentAssistVisitor.RangeVariableDeclarationVisitor`	`getRangeVariableDeclarationVisitor()`
`protected AbstractContentAssistVisitor.ResultVariableVisitor`	`getResultVariableVisitor()`
`protected AbstractContentAssistVisitor.SelectClauseCollectionHelper`	`getSelectClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.SelectClauseStatementHelper`	`getSelectClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleFromClauseStatementHelper`	`getSimpleFromClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleGroupByClauseStatementHelper`	`getSimpleGroupByClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper`	`getSimpleHavingClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleSelectClauseCollectionHelper`	`getSimpleSelectClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.SimpleSelectClauseStatementHelper`	`getSimpleSelectClauseStatementHelper()`
`protected AbstractContentAssistVisitor.SimpleWhereClauseSelectStatementHelper`	`getSimpleWhereClauseSelectStatementHelper()`
`protected AbstractContentAssistVisitor.SubqueryAppendableExpressionVisitor`	`getSubqueryAppendableExpressionVisitor()`
`protected AbstractContentAssistVisitor.SubqueryVisitor`	`getSubqueryVisitor()`
`protected AbstractContentAssistVisitor.TripleEncapsulatedCollectionHelper`	`getTripleEncapsulatedCollectionHelper()`
`protected AbstractContentAssistVisitor.UpdateClauseStatementHelper`	`getUpdateClauseStatementHelper()`
`protected AbstractContentAssistVisitor.UpdateItemCollectionHelper`	`getUpdateItemCollectionHelper()`
`protected AbstractContentAssistVisitor.VisitParentVisitor`	`getVisitParentVisitor()`
`protected AbstractContentAssistVisitor.WhenClauseConditionalClauseCollectionHelper`	`getWhenClauseConditionalClauseCollectionHelper()`
`protected AbstractContentAssistVisitor.WhereClauseDeleteStatementHelper`	`getWhereClauseDeleteStatementHelper()`
`protected AbstractContentAssistVisitor.WhereClauseSelectStatementHelper`	`getWhereClauseSelectStatementHelper()`
`protected AbstractContentAssistVisitor.WhereClauseUpdateStatementHelper`	`getWhereClauseUpdateStatementHelper()`
`protected AbstractContentAssistVisitor.WithinInvalidExpressionVisitor`	`getWithinInvalidExpressionVisitor()`
`protected boolean`	`hasClausesDefinedBetween(Expression expression, java.lang.String afterIdentifier, java.lang.String beforeIdentifier)`
`protected boolean`	`hasVirtualSpace()` Determines whether there is a virtual space to be considered or not.
`protected void`	`initialize()` Initializes this visitor.
`protected boolean`	`isAggregate(java.lang.String identifier)` Determines whether the given JPQL identifier used in an aggregate expression; for instance AND.
`protected boolean`	`isAppendable(Expression expression, AbstractContentAssistVisitor.AppendableType appendableType)` Determines whether a certain type of JPQL identifiers can be appended to the JPQL query based on the given `Expression`.
`protected boolean`	`isAppendableToCollection(Expression expression)` Determines whether
`protected boolean`	`isClause(java.lang.String identifier)` Determines whether the given JPQL identifier used in a clause; for instance SELECT.
`protected boolean`	`isClauseAppendable(Expression expression)` Determines whether the identifiers identifying clauses can be appended to the JPQL query based on the given `Expression`.
`protected boolean`	`isComplete(Expression expression)` Determines whether the given `Expression` is grammatically complete.
`protected boolean`	`isCompoundable(Expression expression)` Determines whether the given `Expression` can be used as the left side of a compound expression.
`protected boolean`	`isCompoundFunction(java.lang.String identifier)` Determines whether the given JPQL identifier used in a compound expression; an example would be BETWEEN or MEMBER.
`protected boolean`	`isDeclaration(AbstractPathExpression expression)` Determines whether the given `AbstractPathExpression` is found within a declaration expression.
`protected boolean`	`isEncapsulated(Expression expression)` Determines whether the given `Expression` is being encapsulated or not.
`protected boolean`	`isEnumAllowed(AbstractPathExpression expression)` Determines whether the given `AbstractPathExpression` could potentially represent a fully qualified enum constant, which is dictated by the location of the path expression within the query.
`protected boolean`	`isFollowingInvalidExpression(Expression expression)` Determines whether the given `Expression` is preceded by an invalid expression.
`protected boolean`	`isFunction(java.lang.String identifier)` Determines whether the given JPQL identifier is a function, an example would be AVG.
`protected boolean`	`isInSubquery(Expression expression)` Determines whether the given `Expression` is in a subquery or in the top-level query.
`protected boolean`	`isInvalidExpression(Expression expression)` Determines whether the given `Expression` represents an invalid fragment.
`protected abstract boolean`	`isJoinFetchIdentifiable()` Determines whether a `JOIN FETCH` expression can be identified by with an identification variable or not.
`protected boolean`	`isLocked(Expression expression)` Determines whether the given `Expression` has been set has the lock to prevent an infinite recursion.
`protected boolean`	`isNotExpression(Expression expression)` Determines whether the given `Expression` represents the negated expression.
`protected boolean`	`isPositionWithin(int position, int offset, java.lang.String word)` Determines whether the given position is within the given word.
`protected boolean`	`isPositionWithin(int position, java.lang.String word)` Determines whether the given position is within the given word.
`protected boolean`	`isSubqueryAppendable(Expression expression)` Determines whether the JPQL identifier starting a subquery (`SELECT`) can be appended based on the given `Expression` which is preceding the position of the cursor.
`protected boolean`	`isValid(Expression expression, JPQLQueryBNF queryBNF)` Determines whether the given `Expression` part is an expression of the given query BNF.
`protected boolean`	`isValid(Expression expression, java.lang.String queryBNFId)` Determines whether the given `Expression` part is an expression of the given query BNF.
`protected boolean`	`isValid(JPQLQueryBNF parentQueryBNF, JPQLQueryBNF queryBNF)` Determines whether the given `JPQLQueryBNF` part is the given parent `JPQLQueryBNF`.
`protected boolean`	`isValid(JPQLQueryBNF parentQueryBNF, JPQLQueryBNF queryBNF, boolean bypassCompound)` Determines whether the given `JPQLQueryBNF` part is the given parent `JPQLQueryBNF`.
`protected boolean`	`isValid(JPQLQueryBNF parentQueryBNF, java.lang.String queryBNFId, boolean bypassCompound)` Determines whether the given `JPQLQueryBNF` part is the given parent `JPQLQueryBNF`.
`protected boolean`	`isValidProposal(java.lang.String proposal, java.lang.String word)` Determines whether the given proposal is a valid, which is based on the content of the given word.
`protected boolean`	`isValidVersion(java.lang.String identifier)` Determines whether the given JPQL identifier can be a valid proposal, i.e. if it's part of the grammar of the JPA version that was used to parse the JPQL query.
`protected boolean`	`isWithinInvalidExpression(Expression expression)` Determines whether the given `Expression` is part of an invalid fragment
`protected <T> void`	`registerHelper(java.lang.Class<T> helperClass, T helper)` Registers the given helper associated with the given helper class.
`protected void`	`removeVirtualSpace()` Removes the last virtual space from the stack.
`java.lang.String`	`toString()`
`void`	`visit(AbsExpression expression)` Visits the `AbsExpression` expression.
`void`	`visit(AbstractSchemaName expression)` Visits the `AbstractSchemaName` expression.
`void`	`visit(AdditionExpression expression)` Visits the `AdditionExpression` expression.
`void`	`visit(AllOrAnyExpression expression)` Visits the `AllOrAnyExpression` expression.
`void`	`visit(AndExpression expression)` Visits the `AndExpression` expression.
`void`	`visit(ArithmeticFactor expression)` Visits the `ArithmeticFactor` expression.
`void`	`visit(AvgFunction expression)` Visits the `AvgFunction` expression.
`void`	`visit(BadExpression expression)` Visits the `BadExpression` expression.
`void`	`visit(BetweenExpression expression)` Visits the `BetweenExpression` expression.
`void`	`visit(CaseExpression expression)` Visits the `CaseExpression` expression.
`void`	`visit(CoalesceExpression expression)` Visits the `CoalesceExpression` expression.
`void`	`visit(CollectionExpression expression)` Visits the `CollectionExpression` expression.
`void`	`visit(CollectionMemberDeclaration expression)` Visits the `CollectionMemberDeclaration` expression.
`void`	`visit(CollectionMemberExpression expression)` Visits the `CollectionMemberExpression` expression.
`void`	`visit(CollectionValuedPathExpression expression)` Visits the `CollectionValuedPathExpression` expression.
`void`	`visit(ComparisonExpression expression)` Visits the `ComparisonExpression` expression.
`void`	`visit(ConcatExpression expression)` Visits the `ConcatExpression` expression.
`void`	`visit(ConstructorExpression expression)` Visits the `ConstructorExpression` expression.
`void`	`visit(CountFunction expression)` Visits the `CountFunction` expression.
`void`	`visit(DateTime expression)` Visits the `DateTime` expression.
`void`	`visit(DeleteClause expression)` Visits the `DeleteClause` expression.
`void`	`visit(DeleteStatement expression)` Visits the `DeleteStatement` expression.
`void`	`visit(DivisionExpression expression)` Visits the `DivisionExpression` expression.
`void`	`visit(EmptyCollectionComparisonExpression expression)` Visits the `EmptyCollectionComparisonExpression` expression.
`void`	`visit(EntityTypeLiteral expression)` Visits the `EntityTypeLiteral` expression.
`void`	`visit(EntryExpression expression)` Visits the `EntryExpression` expression.
`void`	`visit(ExistsExpression expression)` Visits the `ExistsExpression` expression.
`protected void`	`visit(Expression expression)` Blindly visit the given `Expression`.
`void`	`visit(FromClause expression)` Visits the `FromClause` expression.
`void`	`visit(FunctionExpression expression)` Visits the `FunctionExpression` expression.
`void`	`visit(GroupByClause expression)` Visits the `GroupByClause` expression.
`void`	`visit(HavingClause expression)` Visits the `HavingClause` expression.
`void`	`visit(IdentificationVariable expression)` Visits the `IdentificationVariable` expression.
`void`	`visit(IdentificationVariableDeclaration expression)` Visits the `IdentificationVariableDeclaration` expression.
`void`	`visit(IndexExpression expression)` Visits the `IndexExpression` expression.
`void`	`visit(InExpression expression)` Visits the `InExpression` expression.
`void`	`visit(InputParameter expression)` Visits the `InputParameter` expression.
`void`	`visit(Join expression)` Visits the `Join` expression.
`void`	`visit(JPQLExpression expression)` Visits the `JPQLExpression` expression.
`void`	`visit(KeyExpression expression)` Visits the `KeyExpression` expression.
`void`	`visit(KeywordExpression expression)` Visits the `KeywordExpression` expression.
`void`	`visit(LengthExpression expression)` Visits the `LengthExpression` expression.
`void`	`visit(LikeExpression expression)` Visits the `LikeExpression` expression.
`void`	`visit(LocateExpression expression)` Visits the `LocateExpression` expression.
`void`	`visit(LowerExpression expression)` Visits the `LowerExpression` expression.
`void`	`visit(MaxFunction expression)` Visits the `MaxFunction` expression.
`void`	`visit(MinFunction expression)` Visits the `MinFunction` expression.
`void`	`visit(ModExpression expression)` Visits the `ModExpression` expression.
`void`	`visit(MultiplicationExpression expression)` Visits the `MultiplicationExpression` expression.
`void`	`visit(NotExpression expression)` Visits the `NotExpression` expression.
`void`	`visit(NullComparisonExpression expression)` Visits the `NullComparisonExpression` expression.
`void`	`visit(NullExpression expression)` Visits the `NullExpression` expression.
`void`	`visit(NullIfExpression expression)` Visits the `NullIfExpression` expression.
`void`	`visit(NumericLiteral expression)` Visits the `NumericLiteral` expression.
`void`	`visit(ObjectExpression expression)` Visits the `ObjectExpression` expression.
`void`	`visit(OnClause expression)` Visits the `OnClause` expression.
`void`	`visit(OrderByClause expression)` Visits the `OrderByClause` expression.
`void`	`visit(OrderByItem expression)` Visits the `OrderByItem` expression.
`void`	`visit(OrExpression expression)` Visits the `OrExpression` expression.
`void`	`visit(RangeVariableDeclaration expression)` Visits the `RangeVariableDeclaration` expression.
`void`	`visit(ResultVariable expression)` Visits the `ResultVariable` expression.
`void`	`visit(SelectClause expression)` Visits the `SelectClause` expression.
`void`	`visit(SelectStatement expression)` Visits the `SelectStatement` expression.
`void`	`visit(SimpleFromClause expression)` Visits the `SimpleFromClause` expression.
`void`	`visit(SimpleSelectClause expression)` Visits the `SimpleSelectClause` expression.
`void`	`visit(SimpleSelectStatement expression)` Visits the `SimpleSelectStatement` expression.
`void`	`visit(SizeExpression expression)` Visits the `SizeExpression` expression.
`void`	`visit(SqrtExpression expression)` Visits the `SqrtExpression` expression.
`void`	`visit(StateFieldPathExpression expression)` Visits the `StateFieldPathExpression` expression.
`void`	`visit(StringLiteral expression)` Visits the `StringLiteral` expression.
`void`	`visit(SubExpression expression)` Visits the `SubExpression` expression.
`void`	`visit(SubstringExpression expression)` Visits the `SubstringExpression` expression.
`void`	`visit(SubtractionExpression expression)` Visits the `SubtractionExpression` expression.
`void`	`visit(SumFunction expression)` Visits the `SumFunction` expression.
`void`	`visit(TreatExpression expression)` Visits the `TreatExpression` expression.
`void`	`visit(TrimExpression expression)` Visits the `TrimExpression` expression.
`void`	`visit(TypeExpression expression)` Visits the `TypeExpression` expression.
`void`	`visit(UnknownExpression expression)` Visits the `UnknownExpression` expression.
`void`	`visit(UpdateClause expression)` Visits the `UpdateClause` expression.
`void`	`visit(UpdateItem expression)` Visits the `UpdateItem` expression.
`void`	`visit(UpdateStatement expression)` Visits the `UpdateStatement` expression.
`void`	`visit(UpperExpression expression)` Visits the `UpperExpression` expression.
`void`	`visit(ValueExpression expression)` Visits the `ValueExpression` expression.
`void`	`visit(WhenClause expression)` Visits the `WhenClause` expression.
`void`	`visit(WhereClause expression)` Visits the `WhereClause` expression.
`protected void`	`visitAggregateFunction(AggregateFunction expression)` Visits the given `AggregateFunction` and attempts to find valid proposals.
`protected void`	`visitArithmeticExpression(ArithmeticExpression expression)` Visits the given `ArithmeticExpression` and attempts to find valid proposals.
`protected <T extends Expression> void`	`visitCollectionExpression(T expression, java.lang.String identifier, AbstractContentAssistVisitor.CollectionExpressionHelper<T> helper)` Adds the possible proposals for the given `expression` based on the location of the cursor and the content of the expression.
`protected void`	`visitEndingExpression(Expression expression)`
`protected void`	`visitEnumConstant(AbstractPathExpression expression)`
`protected void`	`visitInvalidExpression(Expression expression)`
`protected void`	`visitLogicalExpression(LogicalExpression expression)` Visits the given `LogicalExpression` and attempts to find valid proposals.
`protected void`	`visitPathExpression(AbstractPathExpression expression)` Visits the given `AbstractPathExpression` and attempts to find valid proposals.
`protected void`	`visitPathExpression(AbstractPathExpression expression, Filter<IMapping> filter)` Visits the given `AbstractPathExpression` by attempting to resolve the path.
`protected void`	`visitSingleEncapsulatedExpression(AbstractSingleEncapsulatedExpression expression, AbstractContentAssistVisitor.IdentificationVariableType identificationVariableType)` Adds the possible proposals for the given `expression` based on the location of the cursor and the content of the expression.
`protected void`	`visitSingleEncapsulatedExpression(AbstractSingleEncapsulatedExpression expression, AbstractContentAssistVisitor.IdentificationVariableType identificationVariableType, java.lang.String... expressionIdentifiers)` Adds the possible proposals for the given `expression` based on the location of the cursor and the content of the expression.
`protected <T extends Expression> void`	`visitStatement(T expression, AbstractContentAssistVisitor.StatementHelper<T> helper)` Visits the given `AbstractSelectStatement` and checks to see if the identifiers of the following clauses can be added a valid proposals.
`protected void`	`visitThirdPartyPathExpression(AbstractPathExpression expression, java.lang.String variableName)` Visits the given `AbstractPathExpression` and attempts to find valid proposals that is not provided by the default implementation.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - corrections
```
protected java.util.Stack<java.lang.Integer> corrections
```
    This is used to change the position of the cursor in order to add possible proposals
  - helpers
```
protected java.util.Map<java.lang.Class<?>,java.lang.Object> helpers
```
    The cached helpers that are used by this visitor to add valid content assist proposals.
  - identifierFilters
```
protected java.util.Map<java.lang.String,Filter<Expression>> identifierFilters
```
    This map contains the Filter that is used to determine when an identifier is a valid proposal, some of them depends on the expression's type.
  - lockedExpressions
```
protected java.util.Stack<Expression> lockedExpressions
```
    Used to prevent and infinite recursion when one of the visit method is virtually asking a child expression to be visited.
  - proposals
```
protected DefaultContentAssistProposals proposals
```
    The set of possible proposals gathered based on the position in the query.
  - queryContext
```
protected final JPQLQueryContext queryContext
```
    The context used to query information about the JPQL query.
  - queryPosition
```
protected QueryPosition queryPosition
```
    Contains the position of the cursor within the parsed Expression from the root node up to the deepest leaf node.
  - virtualSpaces
```
protected java.util.Stack<java.lang.Integer> virtualSpaces
```
    A virtual space is used to move the position of the cursor by adding an extra space in order to find some proposals within an expression. This is usually used when the trailing whitespace is not owned by the child expression but by one of its parents.
  - word
```
protected java.lang.String word
```
    The current word, which was retrieved from the JPQL query based on the position of the cursor. The word is the partial string found to the left of the cursor and up to the cursor.
  - wordParser
```
protected WordParser wordParser
```
    This is used to retrieve words from the actual JPQL query.
  - INVALID_IDENTIFIER_FILTER
```
protected static Filter<Expression> INVALID_IDENTIFIER_FILTER
```
    This Filter is used to say the Expression is invalid without doing anything.
  - SPACE_LENGTH
```
protected static final int SPACE_LENGTH
```
    A constant for the length of a whitespace, which is 1.
    
    See Also:
    
    Constant Field Values
  - VALID_IDENTIFIER_FILTER
```
protected static Filter<Expression> VALID_IDENTIFIER_FILTER
```
    This Filter is used to say the Expression is valid without doing anything.
- Constructor Detail
  - AbstractContentAssistVisitor
```
protected AbstractContentAssistVisitor(JPQLQueryContext queryContext)
```
    Creates a new AbstractContentAssistVisitor.
    
    Parameters:
    
    queryContext - The context used to query information about the JPQL query
    
    Throws:
    
    java.lang.NullPointerException - The JPQLQueryContext cannot be null
- Method Detail
  - addAggregateIdentifier
```
protected void addAggregateIdentifier(java.lang.String identifier)
```
    Adds the given JPQL identifier as a valid proposal if its role is IdentifierRole.AGGREGATE and the beginning starts with the current word.
    
    Parameters:
    
    identifier - The JPQL identifier to add as a valid proposal if it passes the checks
  - addAggregateIdentifiers
```
protected void addAggregateIdentifiers(JPQLQueryBNF queryBNF)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.AGGREGATE and the beginning starts with the current word.
    
    Parameters:
    
    queryBNF - The JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addAggregateIdentifiers
```
protected void addAggregateIdentifiers(java.lang.String queryBNFId)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.AGGREGATE and the beginning starts with the current word.
    
    Parameters:
    
    queryBNFId - The unique of the JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addArithmeticIdentifiers
```
protected void addArithmeticIdentifiers()
```
    Adds the JPQL identifiers which correspond to the arithmetic operators as valid proposals. The word has to be an empty string.
  - addClauseIdentifier
```
protected void addClauseIdentifier(java.lang.String identifier)
```
    Adds the given JPQL identifier as a valid proposal if its role is IdentifierRole.CLAUSE and the beginning starts with the current word.
    
    Parameters:
    
    identifier - The JPQL identifier to add as a valid proposal if it passes the checks
  - addClauseIdentifiers
```
protected void addClauseIdentifiers(JPQLQueryBNF queryBNF)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.CLAUSE and the beginning starts with the current word.
    
    Parameters:
    
    queryBNF - The JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addClauseIdentifiers
```
protected void addClauseIdentifiers(java.lang.String queryBNFId)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.CLAUSE and the beginning starts with the current word.
    
    Parameters:
    
    queryBNFId - The unique identifier of the JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addComparisonIdentifiers
```
protected void addComparisonIdentifiers(Expression expression)
```
    Adds the JPQL identifiers which correspond to the comparison operators as valid proposals. The word has to be an empty string.
    
    Parameters:
    
    expression - The Expression is preceding the position of the cursor and will help to determine which of the comparison operators are valid
  - addCompositeIdentifier
```
protected void addCompositeIdentifier(java.lang.String identifier,
                                      int offset)
```
    Adds the composite JPQL identifier by following the given rules:
    - If the word is empty and the offset is -1, then use the rule used by addIdentifier(String);
    - Otherwise checks the ending of the JPQL query with a portion of the identifier from the entire length of the identifier to the given offset by cutting off the trailing characters.
    Parameters:
    
    identifier - The composite JPQL identifier to add as valid proposal. The composite part means it is an identifier composed of more than one word, example: GROUP BY
    
    offset - The smallest length of the given identifier to test against the ending of the JPQL query based on the position of the cursor. The offset is exclusive
  - addCompoundIdentifier
```
protected void addCompoundIdentifier(java.lang.String identifier,
                                     Expression expression,
                                     boolean hasIs,
                                     boolean hasNot)
```
    Adds the given JPQL identifier as a valid proposal if its role is IdentifierRole.COMPOUND_FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    identifier - The JPQL identifier to add as a valid proposal if it passes the checks
    
    expression - The Expression represents the fragment that is before the current word and it helps to filter out some of the compound identifiers
    
    hasIs - Flag indicating if the IS identifier was found before the word, which would also be before the NOT identifier if it was also found
    
    hasNot - Flag indicating if the NOT identifier was found before the word
  - addCompoundIdentifiers
```
protected void addCompoundIdentifiers(JPQLQueryBNF queryBNF,
                                      Expression expression,
                                      boolean hasIs,
                                      boolean hasNot)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.COMPOUND_FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    queryBNF - The JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
    
    expression - The Expression represents the fragment that is before the current word and it helps to filter out some of the compound identifiers
    
    hasIs - Flag indicating if the IS identifier was found before the word, which would also be before the NOT identifier if it was also found
    
    hasNot - Flag indicating if the NOT identifier was found before the word
  - addCompoundIdentifiers
```
protected void addCompoundIdentifiers(java.lang.String queryBNFId,
                                      Expression expression,
                                      boolean hasIs,
                                      boolean hasNot)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.COMPOUND_FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    queryBNFId - The unique identifier of the JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
    
    expression - The Expression represents the fragment that is before the current word and it helps to filter out some of the compound identifiers
    
    hasIs - Flag indicating if the IS identifier was found before the word, which would also be before the NOT identifier if it was also found
    
    hasNot - Flag indicating if the NOT identifier was found before the word
  - addEntities
```
protected void addEntities()
```
    Adds the entities as possible content assist proposals but will be filtered using the current word.
  - addEntities
```
protected void addEntities(IType type)
```
    Adds the entities as possible content assist proposals but will be filtered using the current word and the entity's type will have to be assignable from the given IType.
    
    Parameters:
    
    type - The IType used to filter the abstract schema types
  - addEnumConstant
```
protected void addEnumConstant(IType enumType,
                               java.lang.String enumConstant)
```
    Adds the given enum constant as a valid proposal.
    
    Parameters:
    
    enumType - The IType of the Enum
    
    enumConstant - The enum constant to be added as a valid proposal
  - addEnumConstants
```
protected void addEnumConstants(IType enumType,
                                java.lang.String word)
```
    Adds the constants of the given enum type as valid proposals if the beginning starts with the given word.
    
    Parameters:
    
    enumType - The IType of the enum type
    
    word - The word is used to filter the enum constants, which can be null or an empty string
  - addExpressionFactoryIdentifiers
```
protected void addExpressionFactoryIdentifiers(ExpressionFactory expressionFactory)
```
    Adds the JPQL identifiers that were registered with the given ExpressionFactory.
    
    Parameters:
    
    expressionFactory - The factory for which its registered JPQL identifiers are added as valid proposals, if they meet the checks
  - addExpressionFactoryIdentifiers
```
protected void addExpressionFactoryIdentifiers(java.lang.String expressionFactoryId)
```
    Adds the JPQL identifiers that were registered with the ExpressionFactory with the given unique identifier.
    
    Parameters:
    
    expressionFactoryId - The unique identifier of the factory for which its registered JPQL identifiers are added as valid proposals, if they meet the checks
  - addFunctionIdentifier
```
protected void addFunctionIdentifier(java.lang.String identifier)
```
    Adds the given JPQL identifier as a valid proposal if its role is IdentifierRole.FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    identifier - The JPQL identifier to add as a valid proposal if it passes the checks
  - addFunctionIdentifiers
```
protected void addFunctionIdentifiers(Expression expression)
```
    Adds the JPQL identifiers for which their role is FUNCTION by determining the JPQLQueryBNF that represents the fragment for which the given Expression was parsed.
    For instance: "SELECT e, AVG(e.name) FROM Employee e" and the given expression is "AVG(e.name)", then the BNF should be the select item BNF.
    If the BNF allows for a subquery and the expression is encapsulated by parenthesis, then SELECT will also be added.
    The identification variables will also be added.
    
    Parameters:
    
    expression - The Expression is used to determine the JPQLQueryBNF to use when retrieving the JPQL identifiers representing a function
  - addFunctionIdentifiers
```
protected void addFunctionIdentifiers(JPQLQueryBNF queryBNF)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    queryBNF - The JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addFunctionIdentifiers
```
protected void addFunctionIdentifiers(java.lang.String queryBNFId)
```
    Adds the JPQL identifiers that are registered with the given JPQLQueryBNF as valid proposals if their role is IdentifierRole.FUNCTION and the beginning starts with the current word.
    
    Parameters:
    
    queryBNFId - The unique identifier of the JPQLQueryBNF for which the registered JPQL identifiers will be added as proposals if they pass the checks
  - addIdentificationVariable
```
protected void addIdentificationVariable(java.lang.String identificationVariable)
```
    Adds the given identification variable as a valid proposal.
    
    Parameters:
    
    identificationVariable - The identification variable to add as a proposal if it passes the checks
  - addIdentificationVariables
```
protected void addIdentificationVariables()
```
    Adds all the identification variables defined in the current query's FROM clause.
  - addIdentificationVariables
```
protected void addIdentificationVariables(Expression expression,
                                          AbstractContentAssistVisitor.IdentificationVariableType type)
```
    Adds the possible identification variables as valid proposals but filter them based on the given type.
    For instance, if the type is AbstractContentAssistVisitor.IdentificationVariableType.LEFT, then any identification variables that have been defined before the given Expression are valid proposals, but those defined after are not valid proposals.
    
    Parameters:
    
    expression - The Expression where the content assist was invoked, which helps to determine how to stop adding identification variables
    
    type - Which type of identification variables to add as valid proposals
  - addIdentifier
```
protected void addIdentifier(java.lang.String identifier)
```
    Adds the given identifier as a proposal if it passes the checks.
    
    Parameters:
    
    identifier - The JPQL identifier to add as a proposal
  - addJoinIdentifiers
```
protected void addJoinIdentifiers()
```
    Adds the join specification identifiers as proposals.
  - addLeftIdentificationVariables
```
protected void addLeftIdentificationVariables(Expression expression)
```
    Adds the identification variables defined in the current query's FROM clause that are declared before the given Expression.
    
    Parameters:
    
    expression - The Expression used to determine at which declaration to stop
  - addLogicalIdentifiers
```
protected void addLogicalIdentifiers()
```
    Adds the logical identifiers, which are AND and OR.
  - addRangeIdentificationVariable
```
protected void addRangeIdentificationVariable(java.lang.String identificationVariable)
```
    Adds the given identification variable as a proposal if it passes the checks. If an entity is found, then it will be registered.
    
    Parameters:
    
    identificationVariable - An identification variable that is
  - addResultVariables
```
protected void addResultVariables()
```
    Adds the result variables defined in the SELECT clause as valid proposals.
  - addVirtualSpace
```
protected final void addVirtualSpace()
```
    Adds a virtual space on the stack.
  - areArithmeticSymbolsAppendable
```
protected boolean areArithmeticSymbolsAppendable(Expression expression)
```
    Determines whether the given Expression can be followed by an arithmetic operator.
    
    Parameters:
    
    expression - The Expression that found left of the cursor, which determines if the arithmetic operators are appendable or not
    
    Returns:
    
    true if the operators are appendable; false otherwise
  - areComparisonSymbolsAppendable
```
protected boolean areComparisonSymbolsAppendable(Expression expression)
```
    Determines whether the given Expression can be followed by a comparison operator.
    
    Parameters:
    
    expression - The Expression that found left of the cursor, which determines if the comparison operators are appendable or not
    
    Returns:
    
    true if the operators are appendable; false otherwise
  - areLogicalSymbolsAppendable
```
protected boolean areLogicalSymbolsAppendable(Expression expression)
```
    Determines whether the given Expression can be followed by a logical operator.
    
    Parameters:
    
    expression - The Expression that found left of the cursor, which determines if the logical operators are appendable or not
    
    Returns:
    
    true if the logical identifiers are appendable; false otherwise
  - buildAcceptableTypeVisitor
```
protected abstract AbstractContentAssistVisitor.AcceptableTypeVisitor buildAcceptableTypeVisitor()
```
  - buildAppendableExpressionVisitor
```
protected AbstractContentAssistVisitor.AppendableExpressionVisitor buildAppendableExpressionVisitor()
```
  - buildCollectionCompoundTypeFilter
```
protected Filter<Expression> buildCollectionCompoundTypeFilter()
```
  - buildCollectionExpressionVisitor
```
protected AbstractContentAssistVisitor.CollectionExpressionVisitor buildCollectionExpressionVisitor()
```
  - buildCollectionMappingFilter
```
protected AbstractContentAssistVisitor.CollectionMappingFilter buildCollectionMappingFilter()
```
  - buildConcatExpressionCollectionHelper
```
protected AbstractContentAssistVisitor.ConcatExpressionCollectionHelper buildConcatExpressionCollectionHelper()
```
  - buildConditionalClauseCollectionHelper
```
protected AbstractContentAssistVisitor.ConditionalClauseCollectionHelper buildConditionalClauseCollectionHelper()
```
  - buildConstrutorCollectionHelper
```
protected AbstractContentAssistVisitor.ConstrutorCollectionHelper buildConstrutorCollectionHelper()
```
  - buildDeclarationVisitor
```
protected AbstractContentAssistVisitor.DeclarationVisitor buildDeclarationVisitor()
```
  - buildDefaultMappingCollector
```
protected AbstractContentAssistVisitor.DefaultMappingCollector buildDefaultMappingCollector()
```
  - buildDeleteClauseCollectionHelper
```
protected AbstractContentAssistVisitor.DeleteClauseCollectionHelper buildDeleteClauseCollectionHelper()
```
  - buildDeleteClauseStatementHelper
```
protected AbstractContentAssistVisitor.DeleteClauseStatementHelper buildDeleteClauseStatementHelper()
```
  - buildDifferentComparisonFilter
```
protected Filter<Expression> buildDifferentComparisonFilter()
```
  - buildDoubleEncapsulatedCollectionHelper
```
protected AbstractContentAssistVisitor.DoubleEncapsulatedCollectionHelper buildDoubleEncapsulatedCollectionHelper()
```
  - buildEncapsulatedExpressionVisitor
```
protected AbstractContentAssistVisitor.EncapsulatedExpressionVisitor buildEncapsulatedExpressionVisitor()
```
  - buildEndingPositionFromInvalidExpression
```
protected QueryPosition buildEndingPositionFromInvalidExpression(Expression invalidExpression,
                                                                 Expression startingPointExpression,
                                                                 boolean[] virtualSpace)
```
    Creates a new QueryPosition containing the corrected positions starting at the given Expression and traversing the children at is always at the right side of the tree.
    
    Parameters:
    
    invalidExpression - The invalid Expression for which a new QueryPosition will be calculated
    
    startingPointExpression - The Expression from which the calculation of the positions will start
    
    virtualSpace - Single element array that will be used to store the flag indicating if a virtual space should be added or not
    
    Returns:
    
    The new QueryPosition that contains the position of the cursor starting from the given Expression down to the right leaf
  - buildEndingQueryPositionBuilder
```
protected AbstractContentAssistVisitor.EndingQueryPositionBuilder buildEndingQueryPositionBuilder()
```
  - buildEnumVisitor
```
protected AbstractContentAssistVisitor.EnumVisitor buildEnumVisitor()
```
  - buildFilteringMappingCollector
```
protected AbstractContentAssistVisitor.FilteringMappingCollector buildFilteringMappingCollector(AbstractPathExpression expression,
                                                                                                Resolver resolver,
                                                                                                Filter<IMapping> filter,
                                                                                                java.lang.String pattern)
```
  - buildFollowingClausesVisitor
```
protected AbstractContentAssistVisitor.FollowingClausesVisitor buildFollowingClausesVisitor()
```
  - buildFollowingInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.FollowingInvalidExpressionVisitor buildFollowingInvalidExpressionVisitor()
```
  - buildFromClauseCollectionHelper
```
protected AbstractContentAssistVisitor.FromClauseCollectionHelper buildFromClauseCollectionHelper()
```
  - buildFromClauseStatementHelper
```
protected AbstractContentAssistVisitor.FromClauseStatementHelper buildFromClauseStatementHelper()
```
  - buildGroupByClauseCollectionHelper
```
protected AbstractContentAssistVisitor.GroupByClauseCollectionHelper buildGroupByClauseCollectionHelper()
```
  - buildGroupByClauseStatementHelper
```
protected AbstractContentAssistVisitor.GroupByClauseStatementHelper buildGroupByClauseStatementHelper()
```
  - buildHavingClauseStatementHelper
```
protected AbstractContentAssistVisitor.HavingClauseStatementHelper buildHavingClauseStatementHelper()
```
  - buildIncompleteCollectionExpressionVisitor
```
protected AbstractContentAssistVisitor.IncompleteCollectionExpressionVisitor buildIncompleteCollectionExpressionVisitor()
```
  - buildInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.InvalidExpressionVisitor buildInvalidExpressionVisitor()
```
  - buildJoinCollectionHelper
```
protected AbstractContentAssistVisitor.JoinCollectionHelper buildJoinCollectionHelper()
```
  - buildJPQLQueryBNFValidator
```
protected AbstractValidator.JPQLQueryBNFValidator buildJPQLQueryBNFValidator(JPQLQueryBNF queryBNF)
```
    Returns the AbstractValidator.JPQLQueryBNFValidator that can be used to validate an Expression by making sure its BNF is part of the given BNF.
    
    Parameters:
    
    queryBNF - The BNF used to determine the validity of an Expression
    
    Returns:
    
    A AbstractValidator.JPQLQueryBNFValidator that can determine if an Expression follows the given BNF
  - buildMappingCollector
```
protected AbstractContentAssistVisitor.MappingCollector buildMappingCollector(AbstractPathExpression expression,
                                                                              Resolver resolver,
                                                                              Filter<IMapping> filter)
```
  - buildMappingFilter
```
protected Filter<IMapping> buildMappingFilter(AbstractPathExpression expression,
                                              Filter<IMapping> filter)
```
  - buildMappingFilter
```
protected Filter<IMapping> buildMappingFilter(Expression expression)
```
  - buildMappingFilterBuilder
```
protected AbstractContentAssistVisitor.MappingFilterBuilder buildMappingFilterBuilder()
```
  - buildNonCollectionCompoundTypeFilter
```
protected Filter<Expression> buildNonCollectionCompoundTypeFilter()
```
  - buildNotExpressionVisitor
```
protected AbstractContentAssistVisitor.NotExpressionVisitor buildNotExpressionVisitor()
```
  - buildOrderByClauseCollectionHelper
```
protected AbstractContentAssistVisitor.OrderByClauseCollectionHelper buildOrderByClauseCollectionHelper()
```
  - buildOrderByClauseStatementHelper
```
protected AbstractContentAssistVisitor.OrderByClauseStatementHelper buildOrderByClauseStatementHelper()
```
  - buildPropertyMappingFilter
```
protected AbstractContentAssistVisitor.PropertyMappingFilter buildPropertyMappingFilter()
```
  - buildProposals
```
public ContentAssistProposals buildProposals(int position)
```
    Prepares this visitor by prepopulating it with the necessary data that is required to properly gather the list of proposals based on the given caret position.
    
    Parameters:
    
    position - The position of the cursor within the JPQL query
    
    Returns:
    
    The proposals that are valid choices for the given position
  - buildProposals
```
public ContentAssistProposals buildProposals(int position,
                                             ContentAssistExtension extension)
```
    Prepares this visitor by prepopulating it with the necessary data that is required to properly gather the list of proposals based on the given caret position.
    
    Parameters:
    
    position - The position of the cursor within the JPQL query
    
    extension - This extension can be used to provide additional support to JPQL content assist that is outside the scope of providing proposals related to JPA metadata. It adds support for providing suggestions related to class names, enum constants, table names, column names
    
    Returns:
    
    The proposals that are valid choices for the given position
  - buildRangeVariableDeclarationVisitor
```
protected AbstractContentAssistVisitor.RangeVariableDeclarationVisitor buildRangeVariableDeclarationVisitor()
```
  - buildResultVariableVisitor
```
protected AbstractContentAssistVisitor.ResultVariableVisitor buildResultVariableVisitor()
```
  - buildSelectClauseCollectionHelper
```
protected AbstractContentAssistVisitor.SelectClauseCollectionHelper buildSelectClauseCollectionHelper()
```
  - buildSelectClauseStatementHelper
```
protected AbstractContentAssistVisitor.SelectClauseStatementHelper buildSelectClauseStatementHelper()
```
  - buildSimpleFromClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleFromClauseStatementHelper buildSimpleFromClauseStatementHelper()
```
  - buildSimpleGroupByClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleGroupByClauseStatementHelper buildSimpleGroupByClauseStatementHelper()
```
  - buildSimpleHavingClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper buildSimpleHavingClauseStatementHelper()
```
  - buildSimpleSelectClauseCollectionHelper
```
protected AbstractContentAssistVisitor.SimpleSelectClauseCollectionHelper buildSimpleSelectClauseCollectionHelper()
```
  - buildSimpleSelectClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleSelectClauseStatementHelper buildSimpleSelectClauseStatementHelper()
```
  - buildSimpleWhereClauseSelectStatementHelper
```
protected AbstractContentAssistVisitor.SimpleWhereClauseSelectStatementHelper buildSimpleWhereClauseSelectStatementHelper()
```
  - buildSubqueryAppendableExpressionVisitor
```
protected AbstractContentAssistVisitor.SubqueryAppendableExpressionVisitor buildSubqueryAppendableExpressionVisitor()
```
  - buildSubqueryVisitor
```
protected AbstractContentAssistVisitor.SubqueryVisitor buildSubqueryVisitor()
```
  - buildTripleEncapsulatedCollectionHelper
```
protected AbstractContentAssistVisitor.TripleEncapsulatedCollectionHelper buildTripleEncapsulatedCollectionHelper()
```
  - buildUpdateClauseStatementHelper
```
protected AbstractContentAssistVisitor.UpdateClauseStatementHelper buildUpdateClauseStatementHelper()
```
  - buildUpdateItemCollectionHelper
```
protected AbstractContentAssistVisitor.UpdateItemCollectionHelper buildUpdateItemCollectionHelper()
```
  - buildVisitParentVisitor
```
protected AbstractContentAssistVisitor.VisitParentVisitor buildVisitParentVisitor()
```
  - buildWhenClauseConditionalClauseCollectionHelper
```
protected AbstractContentAssistVisitor.WhenClauseConditionalClauseCollectionHelper buildWhenClauseConditionalClauseCollectionHelper()
```
  - buildWhereClauseDeleteStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseDeleteStatementHelper buildWhereClauseDeleteStatementHelper()
```
  - buildWhereClauseSelectStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseSelectStatementHelper buildWhereClauseSelectStatementHelper()
```
  - buildWhereClauseUpdateStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseUpdateStatementHelper buildWhereClauseUpdateStatementHelper()
```
  - buildWithinInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.WithinInvalidExpressionVisitor buildWithinInvalidExpressionVisitor()
```
  - dispose
```
public void dispose()
```
    Disposes of the internal data.
  - findRangeVariableDeclaration
```
protected RangeVariableDeclaration findRangeVariableDeclaration(UpdateClause expression)
```
    Retrieves the RangeVariableDeclaration that defines the entity name and identification variable for the given UpdateClause.
    
    Returns:
    
    Either the RangeVariableDeclaration if the JPQL query defines it or null if it was not defined
  - getAcceptableType
```
protected IType getAcceptableType(Expression expression)
```
    Determines the root IType that any type should be assignable. If the IType is Number, than any subclasses will be allowed.
    
    Parameters:
    
    expression - The Expression to visit, including its parent hierarchy until an Expression requires a certain IType
    
    Returns:
    
    The root IType allowed or null if anything is allowed
  - getAppendableExpressionVisitor
```
protected AbstractContentAssistVisitor.AppendableExpressionVisitor getAppendableExpressionVisitor()
```
  - getCollectionExpression
```
protected CollectionExpression getCollectionExpression(Expression expression)
```
    Casts the given Expression to a CollectionExpression if it is actually an object of that type.
    
    Parameters:
    
    expression - The Expression to cast
    
    Returns:
    
    The given Expression if it is a CollectionExpression or null if it is any other object
  - getCollectionExpressionVisitor
```
protected AbstractContentAssistVisitor.CollectionExpressionVisitor getCollectionExpressionVisitor()
```
    Returns the visitor that collects the CollectionExpression if it's been visited.
    
    Returns:
    
    The AbstractContentAssistVisitor.CollectionExpressionVisitor
    
    See Also:
    
    buildCollectionExpressionVisitor()
  - getConcatExpressionCollectionHelper
```
protected AbstractContentAssistVisitor.ConcatExpressionCollectionHelper getConcatExpressionCollectionHelper()
```
  - getConditionalClauseCollectionHelper
```
protected AbstractContentAssistVisitor.ConditionalClauseCollectionHelper getConditionalClauseCollectionHelper()
```
  - getConstructorCollectionHelper
```
protected AbstractContentAssistVisitor.ConstrutorCollectionHelper getConstructorCollectionHelper()
```
  - getDeclarationVisitor
```
protected AbstractContentAssistVisitor.DeclarationVisitor getDeclarationVisitor()
```
  - getDefaultMappingCollector
```
protected AbstractContentAssistVisitor.MappingCollector getDefaultMappingCollector()
```
  - getDeleteClauseCollectionHelper
```
protected AbstractContentAssistVisitor.DeleteClauseCollectionHelper getDeleteClauseCollectionHelper()
```
  - getDeleteClauseStatementHelper
```
protected AbstractContentAssistVisitor.DeleteClauseStatementHelper getDeleteClauseStatementHelper()
```
  - getDoubleEncapsulatedCollectionHelper
```
protected AbstractContentAssistVisitor.DoubleEncapsulatedCollectionHelper getDoubleEncapsulatedCollectionHelper()
```
  - getEncapsulatedExpressionVisitor
```
protected AbstractContentAssistVisitor.EncapsulatedExpressionVisitor getEncapsulatedExpressionVisitor()
```
  - getEndingQueryPositionBuilder
```
protected AbstractContentAssistVisitor.EndingQueryPositionBuilder getEndingQueryPositionBuilder()
```
  - getEnumVisitor
```
protected AbstractContentAssistVisitor.EnumVisitor getEnumVisitor()
```
  - getExpressionFactory
```
protected ExpressionFactory getExpressionFactory(java.lang.String expressionFactoryId)
```
    Retrieves the registered ExpressionFactory that was registered for the given unique identifier.
    
    Parameters:
    
    expressionFactoryId - The unique identifier of the ExpressionFactory to retrieve
    
    Returns:
    
    The ExpressionFactory mapped with the given unique identifier
  - getExpressionTypeVisitor
```
protected AbstractContentAssistVisitor.AcceptableTypeVisitor getExpressionTypeVisitor()
```
  - getFilter
```
protected Filter<Expression> getFilter(java.lang.String identifier)
```
  - getFollowingClausesVisitor
```
protected AbstractContentAssistVisitor.FollowingClausesVisitor getFollowingClausesVisitor()
```
  - getFollowingInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.FollowingInvalidExpressionVisitor getFollowingInvalidExpressionVisitor()
```
  - getFromClauseCollectionHelper
```
protected AbstractContentAssistVisitor.FromClauseCollectionHelper getFromClauseCollectionHelper()
```
  - getFromClauseStatementHelper
```
protected AbstractContentAssistVisitor.FromClauseStatementHelper getFromClauseStatementHelper()
```
  - getGroupByClauseCollectionHelper
```
protected AbstractContentAssistVisitor.GroupByClauseCollectionHelper getGroupByClauseCollectionHelper()
```
  - getGroupByClauseStatementHelper
```
protected AbstractContentAssistVisitor.GroupByClauseStatementHelper getGroupByClauseStatementHelper()
```
  - getHavingClauseStatementHelper
```
protected AbstractContentAssistVisitor.HavingClauseStatementHelper getHavingClauseStatementHelper()
```
  - getHelper
```
protected final <T> T getHelper(java.lang.Class<T> helperClass)
```
    Retrieves the helper associated with the given helper class.
    
    Parameters:
    
    helperClass - The Java class of the helper to retrieve
    
    Returns:
    
    The helper being requested
  - getIdentifierRole
```
protected IdentifierRole getIdentifierRole(java.lang.String identifier)
```
    Retrieves the role of the given identifier. A role helps to describe the purpose of the identifier in a query.
    
    Parameters:
    
    identifier - The identifier for which its role is requested
    
    Returns:
    
    The role of the given identifier
  - getIncompleteCollectionExpressionVisitor
```
protected AbstractContentAssistVisitor.IncompleteCollectionExpressionVisitor getIncompleteCollectionExpressionVisitor()
```
  - getInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.InvalidExpressionVisitor getInvalidExpressionVisitor()
```
  - getJoinCollectionHelper
```
protected AbstractContentAssistVisitor.JoinCollectionHelper getJoinCollectionHelper()
```
  - getLatestGrammar
```
protected abstract JPQLGrammar getLatestGrammar()
```
    Returns the latest supported JPQL grammar, which is required when checking the validity of a JPQL identifier. This is due to the fact that any JPQL identifiers defined in a more recent spec will be seen to be registered in version 1.0 of the spec. By returning the latest version, any JPQL identifiers should have a version registered.
    
    Returns:
    
    The latest JPQLGrammar supported by the provider
  - getMappingCollectionFilter
```
protected Filter<IMapping> getMappingCollectionFilter()
```
  - getMappingFilterBuilder
```
protected AbstractContentAssistVisitor.MappingFilterBuilder getMappingFilterBuilder()
```
  - getMappingPropertyFilter
```
protected Filter<IMapping> getMappingPropertyFilter()
```
  - getNotExpressionVisitor
```
protected AbstractContentAssistVisitor.NotExpressionVisitor getNotExpressionVisitor()
```
  - getOrderByClauseCollectionHelper
```
protected AbstractContentAssistVisitor.OrderByClauseCollectionHelper getOrderByClauseCollectionHelper()
```
  - getOrderByClauseStatementHelper
```
protected AbstractContentAssistVisitor.OrderByClauseStatementHelper getOrderByClauseStatementHelper()
```
  - getQueryBNF
```
protected JPQLQueryBNF getQueryBNF(java.lang.String queryBNFId)
```
    Retrieves the JPQLQueryBNF that was registered for the given unique identifier.
    
    Parameters:
    
    queryBNFId - The unique identifier of the JPQLQueryBNF to retrieve
    
    Returns:
    
    The JPQLQueryBNF representing a section of the grammar
  - getRangeVariableDeclarationVisitor
```
protected AbstractContentAssistVisitor.RangeVariableDeclarationVisitor getRangeVariableDeclarationVisitor()
```
  - getResultVariableVisitor
```
protected AbstractContentAssistVisitor.ResultVariableVisitor getResultVariableVisitor()
```
  - getSelectClauseCollectionHelper
```
protected AbstractContentAssistVisitor.SelectClauseCollectionHelper getSelectClauseCollectionHelper()
```
  - getSelectClauseStatementHelper
```
protected AbstractContentAssistVisitor.SelectClauseStatementHelper getSelectClauseStatementHelper()
```
  - getSimpleFromClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleFromClauseStatementHelper getSimpleFromClauseStatementHelper()
```
  - getSimpleGroupByClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleGroupByClauseStatementHelper getSimpleGroupByClauseStatementHelper()
```
  - getSimpleHavingClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleHavingClauseStatementHelper getSimpleHavingClauseStatementHelper()
```
  - getSimpleSelectClauseCollectionHelper
```
protected AbstractContentAssistVisitor.SimpleSelectClauseCollectionHelper getSimpleSelectClauseCollectionHelper()
```
  - getSimpleSelectClauseStatementHelper
```
protected AbstractContentAssistVisitor.SimpleSelectClauseStatementHelper getSimpleSelectClauseStatementHelper()
```
  - getSimpleWhereClauseSelectStatementHelper
```
protected AbstractContentAssistVisitor.SimpleWhereClauseSelectStatementHelper getSimpleWhereClauseSelectStatementHelper()
```
  - getSubqueryAppendableExpressionVisitor
```
protected AbstractContentAssistVisitor.SubqueryAppendableExpressionVisitor getSubqueryAppendableExpressionVisitor()
```
  - getSubqueryVisitor
```
protected AbstractContentAssistVisitor.SubqueryVisitor getSubqueryVisitor()
```
  - getTripleEncapsulatedCollectionHelper
```
protected AbstractContentAssistVisitor.TripleEncapsulatedCollectionHelper getTripleEncapsulatedCollectionHelper()
```
  - getUpdateClauseStatementHelper
```
protected AbstractContentAssistVisitor.UpdateClauseStatementHelper getUpdateClauseStatementHelper()
```
  - getUpdateItemCollectionHelper
```
protected AbstractContentAssistVisitor.UpdateItemCollectionHelper getUpdateItemCollectionHelper()
```
  - getVisitParentVisitor
```
protected AbstractContentAssistVisitor.VisitParentVisitor getVisitParentVisitor()
```
  - getWhenClauseConditionalClauseCollectionHelper
```
protected AbstractContentAssistVisitor.WhenClauseConditionalClauseCollectionHelper getWhenClauseConditionalClauseCollectionHelper()
```
  - getWhereClauseDeleteStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseDeleteStatementHelper getWhereClauseDeleteStatementHelper()
```
  - getWhereClauseSelectStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseSelectStatementHelper getWhereClauseSelectStatementHelper()
```
  - getWhereClauseUpdateStatementHelper
```
protected AbstractContentAssistVisitor.WhereClauseUpdateStatementHelper getWhereClauseUpdateStatementHelper()
```
  - getWithinInvalidExpressionVisitor
```
protected AbstractContentAssistVisitor.WithinInvalidExpressionVisitor getWithinInvalidExpressionVisitor()
```
  - hasClausesDefinedBetween
```
protected boolean hasClausesDefinedBetween(Expression expression,
                                           java.lang.String afterIdentifier,
                                           java.lang.String beforeIdentifier)
```
  - hasVirtualSpace
```
protected final boolean hasVirtualSpace()
```
    Determines whether there is a virtual space to be considered or not.
    
    Returns:
    
    true if there is a virtual space to count as a real one or not
  - initialize
```
protected void initialize()
```
    Initializes this visitor.
  - isAggregate
```
protected boolean isAggregate(java.lang.String identifier)
```
    Determines whether the given JPQL identifier used in an aggregate expression; for instance AND.
    
    Parameters:
    
    identifier - The identifier to validate
    
    Returns:
    
    true if the given identifier is used in an aggregate expression; false otherwise
  - isAppendable
```
protected boolean isAppendable(Expression expression,
                               AbstractContentAssistVisitor.AppendableType appendableType)
```
    Determines whether a certain type of JPQL identifiers can be appended to the JPQL query based on the given Expression.
    
    Parameters:
    
    expression - The Expression that determines what can be appended
    
    appendableType - The type of identifiers to append to the JPQL query
    
    Returns:
    
    true if the JPQL identifiers with the given type can be appended to the JPQL query; false if they cannot
  - isAppendableToCollection
```
protected boolean isAppendableToCollection(Expression expression)
```
    Determines whether
    
    Parameters:
    
    expression -
    
    Returns:
  - isClause
```
protected boolean isClause(java.lang.String identifier)
```
    Determines whether the given JPQL identifier used in a clause; for instance SELECT.
    
    Parameters:
    
    identifier - The identifier to validate
    
    Returns:
    
    true if the given identifier is a clause; false otherwise
  - isClauseAppendable
```
protected boolean isClauseAppendable(Expression expression)
```
    Determines whether the identifiers identifying clauses can be appended to the JPQL query based on the given Expression.
    
    Parameters:
    
    expression - The Expression that determines what can be appended
    
    Returns:
    
    true if the following clauses can be appended to the JPQL query; false if they cannot
  - isComplete
```
protected boolean isComplete(Expression expression)
```
    Determines whether the given Expression is grammatically complete.
    
    Parameters:
    
    expression - The Expression to verify its grammar integrity
    
    Returns:
    
    true if the Expression is grammatically complete; false otherwise
  - isCompoundable
```
protected boolean isCompoundable(Expression expression)
```
    Determines whether the given Expression can be used as the left side of a compound expression.
    
    Parameters:
    
    expression - The Expression that determines if the JPQL identifiers with IdentifierRole.COMPOUND_FUNCTION can be used to create a compound expression
    
    Returns:
    
    true if the compound identifiers can be appended to the JPQL query; false if they cannot
  - isCompoundFunction
```
protected boolean isCompoundFunction(java.lang.String identifier)
```
    Determines whether the given JPQL identifier used in a compound expression; an example would be BETWEEN or MEMBER.
    
    Parameters:
    
    identifier - The identifier to validate
    
    Returns:
    
    true if the given identifier is used in a compound expression; false otherwise
  - isDeclaration
```
protected boolean isDeclaration(AbstractPathExpression expression)
```
    Determines whether the given AbstractPathExpression is found within a declaration expression.
    
    Parameters:
    
    expression - The AbstractPathExpression to visit
    
    Returns:
    
    true if the visited CollectionValuedPathExpression is owned by a RangeVariableDeclaration, which indicates it is used to define the "root" object; false if it is not
  - isEncapsulated
```
protected boolean isEncapsulated(Expression expression)
```
    Determines whether the given Expression is being encapsulated or not.
    
    Parameters:
    
    expression - The Expression to scan for encapsulation
    
    Returns:
    
    true if the given Expression is within parenthesis; false otherwise
  - isEnumAllowed
```
protected boolean isEnumAllowed(AbstractPathExpression expression)
```
    Determines whether the given AbstractPathExpression could potentially represent a fully qualified enum constant, which is dictated by the location of the path expression within the query. Only a few location allows an enum constant.
    
    Parameters:
    
    expression - The AbstractPathExpression to visit
    
    Returns:
    
    true if the path expression represents a enum constant; false otherwise
  - isFollowingInvalidExpression
```
protected boolean isFollowingInvalidExpression(Expression expression)
```
    Determines whether the given Expression is preceded by an invalid expression.
    
    Parameters:
    
    expression - The Expression to visit
    
    Returns:
    
    true if the visited Expression is part of a collection of expressions and an invalid expression precede it; false otherwise
  - isFunction
```
protected boolean isFunction(java.lang.String identifier)
```
    Determines whether the given JPQL identifier is a function, an example would be AVG.
    
    Parameters:
    
    identifier - The identifier to validate
    
    Returns:
    
    true if the given identifier is a function; false otherwise
  - isInSubquery
```
protected boolean isInSubquery(Expression expression)
```
    Determines whether the given Expression is in a subquery or in the top-level query.
    
    Parameters:
    
    expression - The Expression to visit its parent hierarchy
    
    Returns:
    
    true if the owning query is a subquery; false if it's the top-level query
  - isInvalidExpression
```
protected boolean isInvalidExpression(Expression expression)
```
    Determines whether the given Expression represents an invalid fragment.
    
    Parameters:
    
    expression - The Expression to visit
    
    Returns:
    
    true if the Expression is an invalid fragment; false otherwise
  - isJoinFetchIdentifiable
```
protected abstract boolean isJoinFetchIdentifiable()
```
    Determines whether a JOIN FETCH expression can be identified by with an identification variable or not.
    
    Returns:
    
    true if the expression can have an identification variable; false otherwise
  - isLocked
```
protected boolean isLocked(Expression expression)
```
    Determines whether the given Expression has been set has the lock to prevent an infinite recursion.
    
    Parameters:
    
    expression - The Expression to check if it is locked
    
    Returns:
    
    true if the given Expression has been marked as locked; false otherwise
  - isNotExpression
```
protected boolean isNotExpression(Expression expression)
```
    Determines whether the given Expression represents the negated expression.
    
    Parameters:
    
    expression - The Expression to visit
    
    Returns:
    
    true if the Expression is NotExpression; false otherwise
  - isPositionWithin
```
protected boolean isPositionWithin(int position,
                                   int offset,
                                   java.lang.String word)
```
    Determines whether the given position is within the given word.
    Example: position=0, word="JPQL" => true Example: position=1, word="JPQL" => true Example: position=4, word="JPQL" => true Example: position=5, word="JPQL" => true Example: position=5, offset 2, (actual cursor position is 3), word="JPQL" => true
    
    Parameters:
    
    position - The position of the cursor
    
    offset - The offset to adjust the position
    
    word - The word to check if the cursor is positioned in it
    
    Returns:
    
    true if the given position is within the given word; false otherwise
  - isPositionWithin
```
protected boolean isPositionWithin(int position,
                                   java.lang.String word)
```
    Determines whether the given position is within the given word.
    Example: position=0, word="JPQL" => true Example: position=1, word="JPQL" => true Example: position=4, word="JPQL" => true Example: position=5, word="JPQL" => true
    
    Parameters:
    
    position - The position of the cursor
    
    word - The word to check if the cursor is positioned in it
    
    Returns:
    
    true if the given position is within the given word; false otherwise
  - isSubqueryAppendable
```
protected boolean isSubqueryAppendable(Expression expression)
```
    Determines whether the JPQL identifier starting a subquery (SELECT) can be appended based on the given Expression which is preceding the position of the cursor.
    
    Parameters:
    
    expression - The Expression that precedes the position of the cursor
    
    Returns:
    
    true if a subquery can be appended; false otherwise
  - isValid
```
protected boolean isValid(Expression expression,
                          JPQLQueryBNF queryBNF)
```
    Determines whether the given Expression part is an expression of the given query BNF.
    
    Parameters:
    
    expression - The Expression to validate based on the query BNF
    
    queryBNF -
    
    Returns:
    
    true if the Expression part is a child of the given query BNF; false otherwise
  - isValid
```
protected boolean isValid(Expression expression,
                          java.lang.String queryBNFId)
```
    Determines whether the given Expression part is an expression of the given query BNF.
    
    Parameters:
    
    expression - The Expression to validate based on the query BNF
    
    queryBNFId -
    
    Returns:
    
    true if the Expression part is a child of the given query BNF; false otherwise
  - isValid
```
protected boolean isValid(JPQLQueryBNF parentQueryBNF,
                          JPQLQueryBNF queryBNF)
```
    Determines whether the given JPQLQueryBNF part is the given parent JPQLQueryBNF.
    
    Parameters:
    
    parentQueryBNF - The "root" of the BNF used to determine if the other is a descendant
    
    queryBNF - The BNF to check if it is a descendant of the parent
    
    Returns:
    
    true if the JPQLQueryBNF is a descendant of the given parent JPQLQueryBNF; false otherwise
  - isValid
```
protected boolean isValid(JPQLQueryBNF parentQueryBNF,
                          JPQLQueryBNF queryBNF,
                          boolean bypassCompound)
```
    Determines whether the given JPQLQueryBNF part is the given parent JPQLQueryBNF.
    
    Parameters:
    
    parentQueryBNF - The "root" of the BNF used to determine if the other is a descendant
    
    queryBNF - The BNF to check if it is a descendant of the parent
    
    bypassCompound - Indicates whether a JPQLQueryBNF representing a compound expression should be considered when doing the validation
    
    Returns:
    
    true if the JPQLQueryBNF is a descendant of the given parent JPQLQueryBNF; false otherwise
  - isValid
```
protected boolean isValid(JPQLQueryBNF parentQueryBNF,
                          java.lang.String queryBNFId,
                          boolean bypassCompound)
```
    Determines whether the given JPQLQueryBNF part is the given parent JPQLQueryBNF.
    
    Parameters:
    
    parentQueryBNF - The "root" of the BNF used to determine if the other is a descendant
    
    queryBNFId - The unique identifier of the JPQLQueryBNF to check if it is a descendant of the parent
    
    bypassCompound - Indicates whether a JPQLQueryBNF representing a compound expression should be considered when doing the validation
    
    Returns:
    
    true if the JPQLQueryBNF is a descendant of the given parent JPQLQueryBNF; false otherwise
  - isValidProposal
```
protected boolean isValidProposal(java.lang.String proposal,
                                  java.lang.String word)
```
    Determines whether the given proposal is a valid, which is based on the content of the given word. If the word is not an empty string, the proposal must start with the content of the word.
    
    Parameters:
    
    proposal - The proposal to validate
    
    word - The word, which is what was parsed before the position of the cursor
    
    Returns:
    
    true if the proposal is valid; false otherwise
  - isValidVersion
```
protected boolean isValidVersion(java.lang.String identifier)
```
    Determines whether the given JPQL identifier can be a valid proposal, i.e. if it's part of the grammar of the JPA version that was used to parse the JPQL query.
    
    Parameters:
    
    identifier - The JPQL identifier to validate
    
    Returns:
    
    true if the given identifier is part of the current JPA version or was defined in previous release; false otherwise
  - isWithinInvalidExpression
```
protected boolean isWithinInvalidExpression(Expression expression)
```
    Determines whether the given Expression is part of an invalid fragment
    
    Parameters:
    
    expression - The Expression to verify its location within the JPQL query
    
    Returns:
    
    true if the given Expression is within an invalid fragment; false if it is not
  - registerHelper
```
protected final <T> void registerHelper(java.lang.Class<T> helperClass,
                                        T helper)
```
    Registers the given helper associated with the given helper class.
    
    Parameters:
    
    helperClass - The Java class of the helper to retrieve
    
    helper - The helper being registered
    
    See Also:
    
    getHelper(Class)
  - removeVirtualSpace
```
protected final void removeVirtualSpace()
```
    Removes the last virtual space from the stack.
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - visit
```
public void visit(AbsExpression expression)
```
    Visits the AbsExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AbstractSchemaName expression)
```
    Visits the AbstractSchemaName expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AdditionExpression expression)
```
    Visits the AdditionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AllOrAnyExpression expression)
```
    Visits the AllOrAnyExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AndExpression expression)
```
    Visits the AndExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ArithmeticFactor expression)
```
    Visits the ArithmeticFactor expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AvgFunction expression)
```
    Visits the AvgFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(BadExpression expression)
```
    Visits the BadExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(BetweenExpression expression)
```
    Visits the BetweenExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CaseExpression expression)
```
    Visits the CaseExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CoalesceExpression expression)
```
    Visits the CoalesceExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionExpression expression)
```
    Visits the CollectionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionMemberDeclaration expression)
```
    Visits the CollectionMemberDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionMemberExpression expression)
```
    Visits the CollectionMemberExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionValuedPathExpression expression)
```
    Visits the CollectionValuedPathExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ComparisonExpression expression)
```
    Visits the ComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ConcatExpression expression)
```
    Visits the ConcatExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ConstructorExpression expression)
```
    Visits the ConstructorExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CountFunction expression)
```
    Visits the CountFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DateTime expression)
```
    Visits the DateTime expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DeleteClause expression)
```
    Visits the DeleteClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DeleteStatement expression)
```
    Visits the DeleteStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DivisionExpression expression)
```
    Visits the DivisionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EmptyCollectionComparisonExpression expression)
```
    Visits the EmptyCollectionComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EntityTypeLiteral expression)
```
    Visits the EntityTypeLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EntryExpression expression)
```
    Visits the EntryExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ExistsExpression expression)
```
    Visits the ExistsExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
protected void visit(Expression expression)
```
    Blindly visit the given Expression.
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(FromClause expression)
```
    Visits the FromClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(FunctionExpression expression)
```
    Visits the FunctionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(GroupByClause expression)
```
    Visits the GroupByClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(HavingClause expression)
```
    Visits the HavingClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariable expression)
```
    Visits the IdentificationVariable expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariableDeclaration expression)
```
    Visits the IdentificationVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IndexExpression expression)
```
    Visits the IndexExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(InExpression expression)
```
    Visits the InExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(InputParameter expression)
```
    Visits the InputParameter expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(Join expression)
```
    Visits the Join expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(JPQLExpression expression)
```
    Visits the JPQLExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(KeyExpression expression)
```
    Visits the KeyExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(KeywordExpression expression)
```
    Visits the KeywordExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LengthExpression expression)
```
    Visits the LengthExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LikeExpression expression)
```
    Visits the LikeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LocateExpression expression)
```
    Visits the LocateExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LowerExpression expression)
```
    Visits the LowerExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MaxFunction expression)
```
    Visits the MaxFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MinFunction expression)
```
    Visits the MinFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ModExpression expression)
```
    Visits the ModExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MultiplicationExpression expression)
```
    Visits the MultiplicationExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NotExpression expression)
```
    Visits the NotExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullComparisonExpression expression)
```
    Visits the NullComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullExpression expression)
```
    Visits the NullExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullIfExpression expression)
```
    Visits the NullIfExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NumericLiteral expression)
```
    Visits the NumericLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ObjectExpression expression)
```
    Visits the ObjectExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OnClause expression)
```
    Visits the OnClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrderByClause expression)
```
    Visits the OrderByClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrderByItem expression)
```
    Visits the OrderByItem expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrExpression expression)
```
    Visits the OrExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(RangeVariableDeclaration expression)
```
    Visits the RangeVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ResultVariable expression)
```
    Visits the ResultVariable expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SelectClause expression)
```
    Visits the SelectClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SelectStatement expression)
```
    Visits the SelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleFromClause expression)
```
    Visits the SimpleFromClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleSelectClause expression)
```
    Visits the SimpleSelectClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleSelectStatement expression)
```
    Visits the SimpleSelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SizeExpression expression)
```
    Visits the SizeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SqrtExpression expression)
```
    Visits the SqrtExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(StateFieldPathExpression expression)
```
    Visits the StateFieldPathExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(StringLiteral expression)
```
    Visits the StringLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubExpression expression)
```
    Visits the SubExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubstringExpression expression)
```
    Visits the SubstringExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubtractionExpression expression)
```
    Visits the SubtractionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SumFunction expression)
```
    Visits the SumFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TreatExpression expression)
```
    Visits the TreatExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TrimExpression expression)
```
    Visits the TrimExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TypeExpression expression)
```
    Visits the TypeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(UnknownExpression expression)
```
    Visits the UnknownExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UnknownExpression to visit
  - visit
```
public void visit(UpdateClause expression)
```
    Visits the UpdateClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateClause to visit
  - visit
```
public void visit(UpdateItem expression)
```
    Visits the UpdateItem expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateItem to visit
  - visit
```
public void visit(UpdateStatement expression)
```
    Visits the UpdateStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateStatement to visit
  - visit
```
public void visit(UpperExpression expression)
```
    Visits the UpperExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpperExpression to visit
  - visit
```
public void visit(ValueExpression expression)
```
    Visits the ValueExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The ValueExpression to visit
  - visit
```
public void visit(WhenClause expression)
```
    Visits the WhenClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The WhenClause to visit
  - visit
```
public void visit(WhereClause expression)
```
    Visits the WhereClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The WhereClause to visit
  - visitAggregateFunction
```
protected void visitAggregateFunction(AggregateFunction expression)
```
    Visits the given AggregateFunction and attempts to find valid proposals.
    
    Parameters:
    
    expression - The AggregateFunction to inspect
  - visitArithmeticExpression
```
protected void visitArithmeticExpression(ArithmeticExpression expression)
```
    Visits the given ArithmeticExpression and attempts to find valid proposals.
    
    Parameters:
    
    expression - The ArithmeticExpression to inspect
  - visitCollectionExpression
```
protected <T extends Expression> void visitCollectionExpression(T expression,
                                                                java.lang.String identifier,
                                                                AbstractContentAssistVisitor.CollectionExpressionHelper<T> helper)
```
    Adds the possible proposals for the given expression based on the location of the cursor and the content of the expression.
    
    Parameters:
    
    expression - The expression being visited
    
    identifier - The JPQL identifier of the Expression being visited, if the Expression does not have an identifier, than an empty string should be passed
    
    helper - This helper completes the behavior of this method by retrieving the information from the given Expression
  - visitEndingExpression
```
protected void visitEndingExpression(Expression expression)
```
  - visitEnumConstant
```
protected void visitEnumConstant(AbstractPathExpression expression)
```
  - visitInvalidExpression
```
protected void visitInvalidExpression(Expression expression)
```
  - visitLogicalExpression
```
protected void visitLogicalExpression(LogicalExpression expression)
```
    Visits the given LogicalExpression and attempts to find valid proposals.
    
    Parameters:
    
    expression - The LogicalExpression to inspect
  - visitPathExpression
```
protected void visitPathExpression(AbstractPathExpression expression)
```
    Visits the given AbstractPathExpression and attempts to find valid proposals.
    Note: A path expression can represent many things: state field, relationship field, collection field, enum constant, etc. This will consider all variations.
    
    Parameters:
    
    expression - The AbstractPathExpression to inspect
  - visitPathExpression
```
protected void visitPathExpression(AbstractPathExpression expression,
                                   Filter<IMapping> filter)
```
    Visits the given AbstractPathExpression by attempting to resolve the path.
    
    Parameters:
    
    expression - The AbstractPathExpression to inspect
    
    filter - The Filter is used to filter out IMapping that are not valid based on their type and the type that is allowed
  - visitSingleEncapsulatedExpression
```
protected void visitSingleEncapsulatedExpression(AbstractSingleEncapsulatedExpression expression,
                                                 AbstractContentAssistVisitor.IdentificationVariableType identificationVariableType)
```
    Adds the possible proposals for the given expression based on the location of the cursor and the content of the expression.
    
    Parameters:
    
    expression - The expression being visited
    
    identificationVariableType - The type of identification variables that can be added as possible proposals
  - visitSingleEncapsulatedExpression
```
protected void visitSingleEncapsulatedExpression(AbstractSingleEncapsulatedExpression expression,
                                                 AbstractContentAssistVisitor.IdentificationVariableType identificationVariableType,
                                                 java.lang.String... expressionIdentifiers)
```
    Adds the possible proposals for the given expression based on the location of the cursor and the content of the expression.
    
    Parameters:
    
    expression - The expression being visited
    
    identificationVariableType - The type of identification variables that can be added as possible proposals
    
    expressionIdentifiers - Sometimes the expression may have more than one possible identifier, such as ALL, ANY and SOME are a possible JPQL identifier for a single expression (AllOrAnyExpression
  - visitStatement
```
protected <T extends Expression> void visitStatement(T expression,
                                                     AbstractContentAssistVisitor.StatementHelper<T> helper)
```
    Visits the given AbstractSelectStatement and checks to see if the identifiers of the following clauses can be added a valid proposals.
    
    Parameters:
    
    expression -
    
    helper - This helper handles one clause from the given SELECT statement
  - visitThirdPartyPathExpression
```
protected void visitThirdPartyPathExpression(AbstractPathExpression expression,
                                             java.lang.String variableName)
```
    Visits the given AbstractPathExpression and attempts to find valid proposals that is not provided by the default implementation. Subclasses can add additional proposals that is outside of the scope of generic JPA metadata.
    
    Parameters:
    
    expression - The AbstractPathExpression to inspect
    
    variableName - The beginning of the path expression

Class AbstractContentAssistVisitor

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

corrections

helpers

identifierFilters

lockedExpressions

proposals

queryContext

queryPosition

virtualSpaces

word

wordParser

INVALID_IDENTIFIER_FILTER

SPACE_LENGTH

VALID_IDENTIFIER_FILTER

Constructor Detail

AbstractContentAssistVisitor

Method Detail

addAggregateIdentifier

addAggregateIdentifiers

addAggregateIdentifiers

addArithmeticIdentifiers

addClauseIdentifier

addClauseIdentifiers

addClauseIdentifiers

addComparisonIdentifiers

addCompositeIdentifier

addCompoundIdentifier

addCompoundIdentifiers

addCompoundIdentifiers

addEntities

addEntities

addEnumConstant

addEnumConstants

addExpressionFactoryIdentifiers

addExpressionFactoryIdentifiers

addFunctionIdentifier

addFunctionIdentifiers

addFunctionIdentifiers

addFunctionIdentifiers

addIdentificationVariable

addIdentificationVariables

addIdentificationVariables

addIdentifier

addJoinIdentifiers

addLeftIdentificationVariables

addLogicalIdentifiers

addRangeIdentificationVariable

addResultVariables

addVirtualSpace

areArithmeticSymbolsAppendable

areComparisonSymbolsAppendable

areLogicalSymbolsAppendable

buildAcceptableTypeVisitor

buildAppendableExpressionVisitor

buildCollectionCompoundTypeFilter

buildCollectionExpressionVisitor

buildCollectionMappingFilter

buildConcatExpressionCollectionHelper

buildConditionalClauseCollectionHelper

buildConstrutorCollectionHelper

buildDeclarationVisitor

buildDefaultMappingCollector

buildDeleteClauseCollectionHelper

buildDeleteClauseStatementHelper

buildDifferentComparisonFilter

buildDoubleEncapsulatedCollectionHelper

buildEncapsulatedExpressionVisitor

buildEndingPositionFromInvalidExpression

buildEndingQueryPositionBuilder

buildEnumVisitor

buildFilteringMappingCollector

buildFollowingClausesVisitor

buildFollowingInvalidExpressionVisitor

buildFromClauseCollectionHelper