Package org.eclipse.persistence.jpa.jpql.parser

This is the core of Hermes, this package contains the classes that can parse a JPQL query.

See: Description

Interface Summary

Interface	Description
EclipseLinkExpressionVisitor	The ExpressionVisitor that adds support for the additional JPQL identifiers supported by EclipseLink that is not defined in the JPA function specification.
Expression	This is the root interface of the parsed tree representation of a JPQL query.
ExpressionVisitor	This interface is used to traverse the JPQL parsed tree.
JPQLGrammar	A JPQL grammar defines how a JPQL query can be parsed.

Class Summary

Class	Description
AbsExpression	The ABS function removes the minus sign from a specified argument and returns the absolute value, which is always a positive number or zero.
AbsExpressionFactory	This AbsExpressionFactory creates a new AbsExpression when the portion of the query to parse starts with ABS.
AbstractConditionalClause	Conditional expressions are composed of other conditional expressions, comparison operations, logical operations, path expressions that evaluate to boolean values, boolean literals, and boolean input parameters.
AbstractDoubleEncapsulatedExpression	This Expression takes care of parsing an expression that encapsulates two expressions separated by a comma.
AbstractEclipseLinkExpressionVisitor	The abstract implementation of EclipseLinkExpressionVisitor.
AbstractEclipseLinkTraverseChildrenVisitor	This ExpressionVisitor traverses the entire hierarchy of the JPQL parsed tree by going down into each of the children of any given Expression.
AbstractEclipseLinkTraverseParentVisitor	This EclipseLinkExpressionVisitor traverses up the hierarchy.
AbstractEncapsulatedExpression	This expression handles parsing the identifier followed by an expression encapsulated within parenthesis.
AbstractExpression	This is the abstract definition of all the parts used to create the tree hierarchy representing the parsed JPQL query.
AbstractExpressionVisitor	The abstract definition of ExpressionVisitor, which implements all the methods but does nothing.
AbstractFromClause	The FROM clause of a query defines the domain of the query by declaring identification variables.
AbstractJPQLGrammar	The abstract definition of a JPQLGrammar.
AbstractLiteralExpressionFactory	This factory is responsible to return the right literal expression.
AbstractOrderByClause	An ordering clause allows the objects or values that are returned by the query to be ordered.
AbstractPathExpression	An identification variable followed by the navigation operator (.) and a state field or association field is a path expression.
AbstractSchemaName	An abstract schema name designates the abstract schema type over which the query ranges.
AbstractSchemaNameBNF	The query BNF for an abstract schema name.
AbstractSchemaNameFactory	This AbstractSchemaNameFactory creates a new AbstractSchemaName.
AbstractSelectClause	The SELECT clause denotes the query result.
AbstractSelectStatement	A query is an operation that retrieves data from one or more tables or views.
AbstractSingleEncapsulatedExpression	This expression handles parsing a JPQL identifier followed by an expression encapsulated within parenthesis.
AbstractTraverseChildrenVisitor	This ExpressionVisitor traverses the entire hierarchy of the JPQL parsed tree by going down into each of the children of any given Expression.
AbstractTraverseParentVisitor	This ExpressionVisitor traverses up the hierarchy.
AbstractTripleEncapsulatedExpression	This Expression takes care of parsing an expression that encapsulates three expressions separated by a comma.
AdditionExpression	One of the four binary operators.
AggregateExpressionBNF	The query BNF for an aggregate expression.
AggregateFunction	In the SELECT clause the result of a query may be the result of an aggregate function applied to a path expression.
AllOrAnyExpression	An ALL conditional expression is a predicate that is true if the comparison operation is true for all values in the result of the subquery or the result of the subquery is empty.
AllOrAnyExpressionBNF	The query BNF for an all or any expression.
AllOrAnyExpressionFactory	This AllOrAnyExpressionFactory creates a new AllOrAnyExpression when the portion of the query to parse starts with ALL, ANY or SOME.
AndExpression	The AND logical operator chains multiple criteria together.
AndExpressionFactory	This AndExpression creates a new AdditionExpression when the portion of the query to parse starts with AND.
AnonymousExpressionVisitor	This visitor allows a subclass to simply override AnonymousExpressionVisitor.visit(Expression) and perform the same task for all visited expressions.
ArithmeticExpression	This expression represents an arithmetic expression, which means the first and second expressions are aggregated with an arithmetic sign.
ArithmeticExpressionBNF	The query BNF for an arithmetic expression.
ArithmeticExpressionFactory	This ExpressionFactory creates a new expression when the portion of the query to parse starts with an arithmetic identifier.
ArithmeticFactor	This expression simply adds a plus or minus sign to the arithmetic primary expression.
ArithmeticFactorBNF	The query BNF for an arithmetic factor expression.
ArithmeticPrimaryBNF	The query BNF for an arithmetic primary expression.
ArithmeticTermBNF	The query BNF for an arithmetic term expression.
AsOfClause	An AS OF clause is part of a flashback query, which provides ways to view past states of database objects, or to return database objects to a previous state, without using traditional point-in-time recovery.
AsOfClauseBNF	The query BNF for the AS OF clause.
AsOfClauseFactory	This AsOfClauseFactory creates a new AsOfClause when the portion of the JPQL query to parse starts with AS OF.
AvgFunction	One of the aggregate functions.
AvgFunctionFactory	This AvgFunctionFactory creates a new AvgFunction when the portion of the query to parse starts with AVG.
BadExpression	This wraps another Expression that was correctly parsed by it is located in an invalid location within the JPQL query.
BadExpressionBNF	The query BNF used for an expression that is invalid.
BadExpressionFactory	This BadExpressionFactory creates a new BadExpression when the portion of the query to parse is malformed.
BetweenExpression	Used in conditional expression to determine whether the result of an expression falls within an inclusive range of values.
BetweenExpressionBNF	The query BNF for the between expression.
BetweenExpressionFactory	This BetweenExpressionFactory creates a new BetweenExpression when the portion of the query to parse starts with BETWEEN or NOT BETWEEN.
BooleanExpressionBNF	The query BNF for a boolean expression.
BooleanLiteralBNF	The query BNF for a boolean literal expression.
BooleanPrimaryBNF	The query BNF for a boolean primary expression.
CaseExpression	BNF: general_case_expression ::= CASE when_clause {when_clause}* ELSE scalar_expression END or BNF: simple_case_expression ::= CASE case_operand simple_when_clause {simple_when_clause}* ELSE scalar_expression END
CaseExpressionBNF	The query BNF for a case expression.
CaseExpressionFactory	This CaseExpressionFactory creates a new CaseExpression when the portion of the query to parse starts with CASE.
CaseOperandBNF	The query BNF for the case operand specified in the case expression.
CastExpression	The CAST function cast value to a different type.
CastExpressionBNF	The query BNF for the CAST function.
CastExpressionFactory	This CastExpressionFactory creates a new CastExpression when the portion of the query to parse starts with CAST.
CoalesceExpression	A COALESCE expression returns null if all its arguments evaluate to null, and the value of the first non-null argument otherwise.
CoalesceExpressionBNF	The query BNF for a coalesce expression.
CoalesceExpressionFactory	This CoalesceExpressionFactory creates a new CoalesceExpression when the portion of the query to parse starts with COALESCE.
CollectionExpression	A CollectionExpression wraps many expression which they are separated by spaces and/or commas.
CollectionMemberDeclaration	An identification variable declared by a collection member declaration ranges over values of a collection obtained by navigation using a path expression.
CollectionMemberDeclarationBNF	The query BNF for a collection member declaration expression.
CollectionMemberDeclarationFactory	This CollectionMemberDeclarationFactory creates a new CollectionMemberDeclaration when the portion of the query to parse starts with IN.
CollectionMemberExpression	This expression tests whether the designated value is a member of the collection specified by the collection-valued path expression.
CollectionMemberExpressionBNF	The query BNF for a collection member expression.
CollectionMemberExpressionFactory	This CollectionMemberExpressionFactory creates a new CollectionMemberExpression when the portion of the query to parse starts with MEMBER, MEMBER OF, NOT MEMBER or NOT MEMBER OF.
CollectionValuedPathExpression	A collection_valued_field is designated by the name of an association field in a one-to-many or a many-to-many relationship or by the name of an element collection field.
CollectionValuedPathExpressionBNF	The query BNF for a collection-valued path expression.
CollectionValuedPathExpressionFactory
ComparisonExpression	Only the values of like types are permitted to be compared.
ComparisonExpressionBNF	The query BNF for a comparison expression.
ComparisonExpressionFactory	This ComparisonExpressionFactory creates a new ComparisonExpression when the portion of the query to parse starts with <, >, <>, <=, >= or =.
CompoundExpression	A compound expression has a left and right expressions combined by an identifier.
ConcatExpression	The CONCAT function returns a string that is a concatenation of its arguments.
ConcatExpressionFactory	This ConcatExpressionFactory creates a new ConcatExpression when the portion of the query to parse starts with CONCAT.
ConditionalExpressionBNF	The query BNF for a conditional expression.
ConditionalFactorBNF	The query BNF for a conditional factor expression.
ConditionalPrimaryBNF	The query BNF for a conditional primary expression.
ConditionalTermBNF	The query BNF for a conditional term expression.
ConnectByClause	The CONNECT BY clause allows selecting rows in a hierarchical order using the hierarchical query clause.
ConnectByClauseBNF	The query BNF for a CONNECT BY clause.
ConnectByClauseFactory	This ConnectByClauseFactory creates a new ConnectByClause when the portion of the query to parse starts with CONNECT BY.
ConstructorExpression	In the SELECT clause a constructor may be used in the SELECT list to return one or more Java instances.
ConstructorExpressionBNF	The query BNF for a constructor expression.
ConstructorExpressionFactory	This ConstructorExpressionFactory creates a new ConstructorExpression when the portion of the query to parse starts with NEW.
ConstructorItemBNF	The query BNF for a constructor item expression.
CountFunction	One of the aggregate functions.
CountFunctionFactory	This CountFunctionFactory creates a new CountFunction when the portion of the query to parse starts with COUNT.
DatabaseType	This expression represents the database specific data type, which may include size and scale.
DatabaseTypeFactory
DatabaseTypeQueryBNF	The query BNF for the database type.
DateTime	This Expression represents a date or time.
DatetimeExpressionBNF	The query BNF for a date/time expression.
DateTimeFactory	This DateTimeFactory creates a new DateTime when the portion of the query to parse starts with CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP or with the JDBC escape format used for date/time/timestamp.
DateTimePrimaryBNF	The query BNF for a date/time primary expression.
DateTimeTimestampLiteralBNF	The query BNF for a date/time/timestamp expression.
DefaultEclipseLinkJPQLGrammar	This JPQL grammar provides support for parsing JPQL queries defined by the JPA 2.1 functional specification and the EclipseLink 2.5.
DefaultJPQLGrammar	This JPQL grammar provides support for parsing JPQL queries defined in the latest JPA functional specification.
DefaultStringExpression	An implementation of an Expression that wraps a string.
DeleteClause	This is the delete clause of the delete statement.
DeleteClauseBNF	The query BNF for the delete clause.
DeleteClauseFactory	This DeleteClauseFactory creates a new DeleteClause when the portion of the query to parse starts with DELETE FROM.
DeleteClauseRangeVariableDeclarationBNF	The query BNF for a range variable declaration expression used by the DELETE clause, which accepts collection and aggregate expression, which is used by invalid queries.
DeleteStatement	Bulk delete operation apply to entities of a single entity class (together with its subclasses, if any).
DeleteStatementBNF	The query BNF for the delete statement.
DeleteStatementFactory	This DeleteStatementFactory creates a new DeleteStatement when the portion of the query to parse starts with DELETE FROM.
DerivedCollectionMemberDeclarationBNF	The query BNF for a derived collection member declaration expression.
DivisionExpression	One of the four binary operators.
EclipseLinkAnonymousExpressionVisitor	This visitor allows a subclass to simply override AnonymousExpressionVisitor.visit(Expression) and perform the same task for all visited expressions including those defined by EclipseLink.
EclipseLinkJPQLGrammar1	This JPQL grammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_0	This JPQLGrammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_1	This JPQLGrammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_2	This JPQLGrammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_3	This JPQLGrammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_4	This JPQLGrammar provides support for parsing JPQL queries defined in	EclipseLinkJPQLGrammar2_5	This JPQLGrammar provides support for parsing JPQL queries defined in	ElseExpressionBNF	The query BNF for a else expression specified in the case expression.
EmptyCollectionComparisonExpression	This expression tests whether or not the collection designated by the collection-valued path expression is empty (i.e, has no elements).
EmptyCollectionComparisonExpressionBNF	The query BNF for an empty collection comparison expression.
EncapsulatedIdentificationVariableExpression	This Expression represents an identification variable that maps a Map property, either the key, the value or a Map.Entry).
EntityExpressionBNF	The query BNF for a entity expression.
EntityOrValueExpressionBNF	The query BNF for a entity or value expression.
EntityTypeExpressionBNF	The query BNF for the TYPE expression.
EntityTypeLiteral	This Expression wraps the name of an entity type.
EntityTypeLiteralBNF	The query BNF for the entity type literal.
EntityTypeLiteralFactory	This factory creates an EntityTypeLiteral, which wraps an entity name.
EntryExpression	An identification variable qualified by the ENTRY operator is a path expression.
EntryExpressionFactory	This EntryExpressionFactory creates a new EntryExpression when the portion of the query to parse starts with ENTRY.
EnumExpressionBNF	The query BNF for a enum expression.
EnumLiteralBNF	The query BNF for an enumeration constant expression.
EnumPrimaryBNF	The query BNF for an enum primary expression.
ExistsExpression	An EXISTS expression is a predicate that is true only if the result of the subquery consists of one or more values and that is false otherwise.
ExistsExpressionBNF	The query BNF for the exists expression.
ExistsExpressionFactory	This ExistsExpressionFactory creates a new ExistsExpression when the portion of the query to parse starts with EXISTS.
ExpressionFactory	An ExpressionFactory is responsible to parse a portion of JPQL query which starts with one of the factory's JPQL identifiers.
ExpressionRegistry	This registry contains the necessary information used by Hermes parser.
ExpressionVisitorWrapper	This ExpressionVisitor wraps another ExpressionVisitor and delegates all its calls to it (the delegate).
ExtractExpression	The EXTRACT function extracts a date part from a date/time value.
ExtractExpressionBNF	The query BNF for the EXTRACT function.
ExtractExpressionFactory	This ExtractExpressionFactory creates a new ExtractExpression when the portion of the query to parse starts with EXTRACT.
FromClause	The FROM clause of a query defines the domain of the query by declaring identification variables.
FromClauseBNF	The query BNF for the from clause.
FromClauseFactory	This FromClauseFactory creates a new FromClause when the portion of the query to parse starts with FROM.
FullyQualifyPathExpressionVisitor	This visitor makes sure that all path expressions are fully qualified with a "virtual" identification variable if the range variable declaration does not define one.
FunctionExpression	This expression adds support to call native database functions.
FunctionExpressionBNF	The query BNF for the EclipseLink's function expression.
FunctionExpressionFactory	This FunctionExpressionFactory creates a new FunctionExpression when the portion of the query to parse starts with an identifier related to a SQL function.
FunctionItemBNF	The query BNF for the parameters of a function expression.
FunctionsReturningDatetimeBNF	The query BNF for a function expression returning a date/time value.
FunctionsReturningNumericsBNF	The query BNF for a function expression returning a numeric value.
FunctionsReturningStringsBNF	The query BNF for a function expression returning a string value.
GeneralCaseExpressionBNF	The query BNF for a general case expression.
GeneralIdentificationExpressionFactory	This ValueExpressionFactory creates a general identification variable, which is either with the identifier KEY or VALUE and then checks the existence of a path expression.
GeneralIdentificationVariableBNF	The query BNF for a general identification variable expression.
GenericQueryBNF	A generic JPQLQueryBNF can be used to manually create a new BNF without having to create a concrete instance.
GroupByClause	The GROUP BY construct enables the aggregation of values according to the properties of an entity class.
GroupByClauseBNF	The query BNF for the group by clause.
GroupByClauseFactory	This GroupByClauseFactory creates a new GroupByClause when the portion of the query to parse starts with GROUP BY.
GroupByItemBNF	The query BNF for a group by item expression.
GroupByItemFactory	This GroupByItemFactory is responsible to return the right expression and to support invalid expression as well.
HavingClause	The HAVING construct enables conditions to be specified that further restrict the query result as restrictions upon the groups.
HavingClauseBNF	The query BNF for the having clause.
HavingClauseFactory	This HavingClauseFactory creates a new HavingClause when the portion of the query to parse starts with HAVING.
HierarchicalQueryClause	If a table contains hierarchical data, then rows can be selected in a hierarchical order using the hierarchical query clause.
HierarchicalQueryClauseBNF
HierarchicalQueryClauseFactory	This HierarchicalQueryClauseFactory creates a new HierarchicalQueryClause when the portion of the query to parse starts with either VERSIONS or AS OF.
IdentificationVariable	An identification variable is a valid identifier declared in the FROM clause of a query.
IdentificationVariableBNF	The query BNF for an identification variable expression.
IdentificationVariableDeclaration	An identification variable is a valid identifier declared in the FROM clause of a query.
IdentificationVariableDeclarationBNF	The query BNF for an identification variable declaration expression.
IdentificationVariableDeclarationFactory	This IdentificationVariableDeclarationFactory handles parsing the JPQL fragment within the FROM clause.
IdentificationVariableFactory	This IdentificationVariableFactory creates a new IdentificationVariable.
IndexExpression	The INDEX function returns an integer value corresponding to the position of its argument in an ordered list.
IndexExpressionFactory	This IndexExpressionFactory creates a new IndexExpression when the portion of the query to parse starts with INDEX.
InExpression	The state field path expression must have a string, numeric, or enum value.
InExpressionBNF	The query BNF for an in expression.
InExpressionExpressionBNF	The query BNF describes the expression being tested by the IN expression.
InExpressionFactory	This InExpressionFactory creates a new InExpression when the portion of the query to parse starts with IN or NOT IN.
InExpressionItemBNF	The query BNF for the items of an IN expression.
InputParameter	Either positional or named parameters may be used.
InputParameterBNF	The query BNF for a input parameter.
InternalAggregateFunctionBNF	The query BNF for the parameter of an aggregate expression.
InternalBetweenExpressionBNF	The query BNF for the lower and upper expressions defined in the between expression.
InternalCoalesceExpressionBNF	The query BNF for the parameters defined in the coalesce expression.
InternalColumnExpressionBNF	The query BNF for the items of a COLUMN expression.
InternalConcatExpressionBNF	The query BNF for the COUNT expression's encapsulated expressions.
InternalConnectByClauseBNF
InternalCountBNF	The query BNF for the parameter of the COUNT function.
InternalEntityTypeExpressionBNF	The query BNF for the parameters defined in the type expression.
InternalFromClauseBNF	The query BNF for the FROM declaration, basically what follows the FROM identifier.
InternalJoinBNF	The query BNF for what's following the join identifier.
InternalLengthExpressionBNF	The query BNF for the parameter of the LENGTH expression.
InternalLocateStringExpressionBNF	The query BNF for the first two parameters of the LOCATE expression.
InternalLocateThirdExpressionBNF	The query BNF for the third parameter of the LOCATE expression.
InternalLowerExpressionBNF	The query BNF for the parameter of the LOWER expression.
InternalModExpressionBNF	The query BNF for the parameters of the MOD expression.
InternalOrderByClauseBNF	The query BNF for what's following the order by identifier.
InternalOrderByItemBNF	The query BNF for an order by item.
InternalOrderByItemFactory	This InternalOrderByItemFactory creates either a StateFieldPathExpression or an IdentificationVariable.
InternalSelectExpressionBNF
InternalSimpleFromClauseBNF	The query BNF for the from declaration used in a subquery.
InternalSimpleSelectExpressionBNF
InternalSqrtExpressionBNF	The query BNF for the parameter of the SQRT expression.
InternalSubstringPositionExpressionBNF	The query BNF for the position parameters of the SUBSTRING expression.
InternalSubstringStringExpressionBNF	The query BNF for the parameter of the LENGTH expression.
InternalUpdateClauseBNF	The query BNF for what's following the update identifier.
InternalUpperExpressionBNF	The query BNF for the parameter of the UPPER expression.
InternalWhenClauseBNF	The query BNF for the expression following the WHEN identifier.
IsExpressionFactory	This IsExpressionFactory creates a new expression when the portion of the query to parse starts with IS.
Join	A JOIN enables the fetching of an association as a side effect of the execution of a query.
JoinAssociationPathExpressionBNF	The query BNF for a join association path expression.
JoinBNF	The query BNF for the join expression.
JoinCollectionValuedPathExpressionFactory
JoinFactory	This JoinFactory creates a new Join when the portion of the query to parse starts with JOIN or FETCH JOIN, respectively.
JoinFetchBNF	The query BNF for the fetch join expression.
JPQLExpression	A JPQLExpression is the root of the parsed tree representation of a JPQL query.
JPQLGrammar1_0	This JPQLGrammar provides support for parsing JPQL queries defined in	JPQLGrammar2_0	This JPQLGrammar provides support for parsing JPQL queries defined in	JPQLGrammar2_1	This JPQLGrammar provides support for parsing JPQL queries defined in	JPQLQueryBNF	This defines a single Backus-Naur Form (BNF) of the JPQL grammar.
JPQLStatementBNF	The query BNF for the JPQL expression.
KeyExpression	An identification variable qualified by the KEY operator is a path expression.
KeyExpressionFactory	This KeyExpressionFactory creates a new KeyExpression when the portion of the query to parse starts with KEY.
KeywordExpression	The expression representing some keywords: TRUE, FALSE or NULL.
KeywordExpressionFactory	This KeywordExpressionFactory creates a new KeywordExpression when the portion of the JPQL query to parse is FALSE, TRUE or NULL.
LengthExpression	The LENGTH function returns the length of the string in characters as an integer.
LengthExpressionFactory	This LengthExpressionFactory creates a new LengthExpression when the portion of the query to parse starts with LENGTH.
LikeExpression	The LIKE condition is used to specify a search for a pattern.
LikeExpressionBNF	The query BNF for a expression.
LikeExpressionEscapeCharacterBNF	This BNF is used when parsing an invalid fragment or to extend the default grammar.
LikeExpressionFactory	This LikeExpressionFactory creates a new LikeExpression when the portion of the query to parse starts with LIKE or NOT LIKE.
LiteralBNF	The query BNF for literals, which is based on the listing defined in section 4.6.1 of the Java Specification document for JPA 2.0.
LiteralExpressionFactory	This LiteralExpressionFactory is responsible to return the right literal expression.
LocateExpression	The LOCATE function returns the position of a given string within a string, starting the search at a specified position.
LocateExpressionFactory	This LocateExpressionFactory creates a new LocateExpression when the portion of the query to parse starts with LOCATE.
LogicalExpression	This expression represents a logical expression, which means the first and second expressions are aggregated with either AND or OR.
LowerExpression	The LOWER function converts a string to lower case and it returns a string.
LowerExpressionFactory	This LowerExpressionFactory creates a new LowerExpression when the portion of the query to parse starts with LOWER.
MaxFunction	One of the aggregate functions.
MaxFunctionFactory	This MaxFunctionFactory creates a new MaxFunction when the portion of the query to parse starts with MAX.
MinFunction	One of the aggregate functions.
MinFunctionFactory	This MinFunctionFactory creates a new MinFunction when the portion of the query to parse starts with MIN.
ModExpression	The modulo operation finds the remainder of division of one number by another.
ModExpressionFactory	This ModExpressionFactory creates a new ModExpression when the portion of the query to parse starts with MOD.
MultiplicationExpression	One of the four binary operators.
NewValueBNF	The query BNF for a new value expression.
NotExpression	BNF: expression ::= NOT conditional_primary
NotExpressionFactory	This NotExpressionFactory creates a new NotExpression when the portion of the query to parse starts with NOT.
NullComparisonExpression	A null comparison tests whether or not the single-valued path expression or input parameter is a NULL value.
NullComparisonExpressionBNF	The query BNF for a null comparison expression.
NullExpression	A null Expression is used instead of a true null, which allows operations to be performed without doing a null check first.
NullIfExpression	NULLIF returns the first expression if the two expressions are not equal.
NullIfExpressionBNF	The query BNF for a nullif expression.
NullIfExpressionFactory	This NullIfExpressionFactory creates a new NullIfExpression when the portion of the query to parse starts with NULLIF.
NumericLiteral	Exact numeric literals support the use of Java integer literal syntax as well as SQL exact numeric literal syntax.
NumericLiteralBNF	The query BNF for a numeric literal.
ObjectExpression	Stand-alone identification variables in the SELECT clause may optionally be qualified by the OBJECT operator.
ObjectExpressionBNF	The query BNF for an object expression.
ObjectExpressionFactory	This ObjectExpressionFactory creates a new ObjectExpression when the portion of the query to parse starts with OBJECT.
OnClause	Returns an expression that allows a join ON clause to be defined.
OnClauseBNF	The query BNF for the on clause.
OnClauseFactory	This OnClauseFactory creates a new OnClause when the portion of the query to parse starts with ON.
OrderByClause	The ORDER BY clause allows the objects or values that are returned by the query to be ordered.
OrderByClauseBNF	The query BNF for the order by clause.
OrderByClauseFactory	This OrderByClauseFactory creates a new OrderByClause when the portion of the query to parse starts with ORDER BY.
OrderByItem	An orderby_item must be one of the following: A state_field_path_expression that evaluates to an orderable state field of an entity or embeddable class abstract schema type designated in the SELECT clause by one of the following: A general_identification_variable A single_valued_object_path_expression A state_field_path_expression that evaluates to the same state field of the same entity or embeddable abstract schema type as a state_field_path_expression in the SELECT clause A result_variable that refers to an orderable item in the SELECT clause for which the same result_variable has been specified.
OrderByItemBNF	The query BNF for the order by item expression.
OrderByItemFactory	This OrderByItemFactory creates a new OrderByItem.
OrderSiblingsByClause	In a hierarchical query, if the rows of siblings of the same parent need to be ordered, then the ORDER SIBLINGS BY clause should be used.
OrderSiblingsByClauseBNF	The query BNF for the order siblings by clause.
OrderSiblingsByClauseFactory	This OrderSiblingsByClauseFactory creates a new OrderSiblingsByClause when the portion of the query to parse starts with ORDER SIBLINGS BY.
OrExpression	The OR logical operator chains multiple criteria together.
OrExpressionFactory	This OrExpressionFactory creates a new OrExpression when the portion of the query to parse starts with OR.
PatternValueBNF	The query BNF for a pattern value.
QualifiedIdentificationVariableBNF	The query BNF for a qualified identification variable expression.
QueryPosition	This object contains the cursor position within the parsed tree and within each of the Expression from the root to the deepest leaf.
RangeDeclarationBNF
RangeDeclarationFactory
RangeVariableDeclaration	Range variable declarations allow the developer to designate a "root" for objects which may not be reachable by navigation.
RangeVariableDeclarationBNF	The query BNF for a range variable declaration expression.
RangeVariableDeclarationFactory	This RangeVariableDeclaration creates a new RangeVariableDeclaration.
RegexpExpression	The REGEXP condition is used to specify a search for a pattern.
RegexpExpressionBNF	The query BNF for a REGEXP expression.
RegexpExpressionFactory	This RegexpExpressionFactory creates a new RegexpExpression when the portion of the query to parse starts with REGEXP.
ResultVariable	A result variable may be used to name a select item in the query result.
ResultVariableBNF	The query BNF for a result variable expression.
ResultVariableFactory	This ResultVariableFactory creates a new ResultVariable when the portion of the query to parse starts with or without AS.
ScalarExpressionBNF	The query BNF for a scalar expression.
SelectClause	The SELECT clause queries data from entities.
SelectClauseBNF	The query BNF for the select clause.
SelectClauseFactory	This SelectClauseFactory creates a new SelectClause when the portion of the query to parse starts with SELECT.
SelectExpressionBNF	The query BNF for a select expression.
SelectStatement	A SELECT query is an operation that retrieves data from one or more tables or views.
SelectStatementBNF	The query BNF for the select statement.
SelectStatementFactory	This SelectStatementFactory creates a new SelectStatement when the portion of the query to parse starts with SELECT.
SimpleArithmeticExpressionBNF	The query BNF for a simple arithmetic expression.
SimpleCaseExpressionBNF	The query BNF for a simple case expression.
SimpleConditionalExpressionBNF	The query BNF for a simple conditional expression.
SimpleEntityExpressionBNF	The query BNF for a simple entity expression.
SimpleEntityOrValueExpressionBNF	The query BNF for a simple entity or value expression.
SimpleFromClause	The FROM clause of a query defines the domain of the query by declaring identification variables.
SimpleResultVariableBNF	The query BNF for a result variable expression.
SimpleSelectClause	The SELECT statement queries data from entities.
SimpleSelectClauseBNF	The query BNF for the simple select clause.
SimpleSelectExpressionBNF	The query BNF for a simple select expression.
SimpleSelectStatement	BNFL subquery ::= simple_select_clause subquery_from_clause [where_clause] [groupby_clause] [having_clause]
SimpleSelectStatementFactory	This SimpleSelectStatementFactory creates a new SimpleSelectStatement when the portion of the query to parse starts with SELECT.
SingleValuedObjectPathExpressionBNF	The query BNF for a simple valued object path expression.
SingleValuedPathExpressionBNF	The query BNF for a single valued path expression.
SizeExpression	The SIZE function returns an integer value, the number of elements of the collection.
SizeExpressionFactory	This SizeExpressionFactory creates a new SizeExpression when the portion of the query to parse starts with SIZE.
SqrtExpression	The SQRT function takes a numeric argument and returns a double.
SqrtExpressionFactory	This SqrtExpressionFactory creates a new SqrtExpression when the portion of the query to parse starts with SQRT.
StartWithClause	A START WITH clause is optional and specifies the root row(s) of the hierarchy.
StartWithClauseBNF	The query BNF for the START WITH clause.
StartWithClauseFactory	This StartWithClauseFactory creates a new StartWithClause when the portion of the query to parse starts with START WITH.
StateFieldPathExpression	A single_valued_association_field is designated by the name of an association-field in a one-to-one or many-to-one relationship.
StateFieldPathExpressionBNF	The query BNF for a state field path expression.
StateFieldPathExpressionFactory	This StateFieldPathExpressionFactory is meant to handle the parsing of a portion of the query when it's expected to be a state field path.
StringExpressionBNF	The query BNF for a string expression.
StringLiteral	A string literal is enclosed in single quotes.
StringLiteralBNF	The query BNF for a string literal.
StringLiteralFactory	This StringLiteralFactory is responsible to parse a sub-query starting with a single quote.
StringPrimaryBNF	The query BNF for a string primary expression.
SubExpression	This expression wraps a sub-expression within parenthesis.
SubqueryBNF	The query BNF for a subquery expression.
SubqueryFromClauseBNF	The query BNF for the from clause defined in a subquery.
SubSelectIdentificationVariableDeclarationBNF	The query BNF for an identification variable declaration expression defined in a sub-select expression.
SubstringExpression	The second and third arguments of the SUBSTRING function denote the starting position and length of the substring to be returned.
SubstringExpressionFactory	This SubstringExpressionFactory creates a new SubstringExpression when the portion of the query to parse starts with SUBSTRING.
SubtractionExpression	One of the four binary operators.
SumFunction	One of the aggregate functions.
SumFunctionFactory	This SumFunctionFactory creates a new SumFunction when the portion of the query to parse starts with SUM.
TableExpression	Defines a table expression.
TableExpressionBNF	The query BNF for a table expression.
TableExpressionFactory	This TableExpressionFactory creates a new TableExpression.
TableVariableDeclaration	Defines a table expression.
TableVariableDeclarationBNF	The query BNF for a table declaration.
TableVariableDeclarationFactory	This TableVariableDeclarationFactory creates a new TableVariableDeclaration.
TreatExpression	Returns an expression that allows to treat its base as if it were a subclass of the class returned by the base.
TreatExpressionBNF	The query BNF for a TREAT expression.
TreatExpressionFactory	This TreatExpressionFactory creates a new TreatExpression when the portion of the query to parse starts with TREAT.
TrimExpression	The TRIM function trims the specified character from a string.
TrimExpressionFactory	This TrimExpressionFactory creates a new TrimExpression when the portion of the query to parse starts with TRIM.
TypeExpression	An entity type expression can be used to restrict query polymorphism.
TypeExpressionBNF	The query BNF for a type expression.
TypeExpressionFactory	This TypeExpressionFactory creates a new TypeExpression when the portion of the query to parse starts with TYPE.
UnionClause	The UNION clause allows the results of two queries to be combined.
UnionClauseBNF	The query BNF for the order by clause.
UnionClauseFactory	This UnionClauseFactory creates a new UnionClause when the portion of the query to parse starts with UNION, INTERSECT or EXCEPT.
UnknownExpression	This expression contains a portion of the query that is unknown to the parser.
UnknownExpressionFactory	This UnknownExpressionFactory creates a new UnknownExpression when the portion of the query to parse is unknown.
UpdateClause	This is the update clause of the update statement.
UpdateClauseBNF	The query BNF for the update clause.
UpdateClauseFactory	This UpdateClauseFactory creates a new UpdateClause when the portion of the query to parse starts with UPDATE.
UpdateItem	The new_value specified for an update operation must be compatible in type with the field to which it is assigned.
UpdateItemBNF	The query BNF for the update item expression.
UpdateItemFactory	This UpdateItemFactory creates a new UpdateItem.
UpdateItemStateFieldPathExpressionBNF	The query BNF for a state field path expression used in an update item.
UpdateItemStateFieldPathExpressionFactory	This UpdateItemStateFieldPathExpressionFactory is meant to handle the parsing of a portion of the query when it's expected to be a state field path.
UpdateStatement	The UPDATE clause of a query consists of a conditional expression used to select objects or values that satisfy the expression.
UpdateStatementBNF	The query BNF for the update statement.
UpdateStatementFactory	This UpdateStatementFactory creates a new UpdateStatement when the portion of the query to parse starts with UPDATE.
UpperExpression	The UPPER function converts a string to upper case and it returns a string.
UpperExpressionFactory	This UpperExpressionFactory creates a new UpperExpression when the portion of the query to parse starts with UPPER.
ValueExpression	An identification variable qualified by the VALUE operator is a path expression.
ValueExpressionFactory	This ValueExpressionFactory creates a new ValueExpression when the portion of the query to parse starts with VALUE.
VirtualJPQLQueryBNF	This JPQLQueryBNF can be used as a virtual BNF, which can wrap another BNF or BNFs and modify the default behavior.
WhenClause	A WHEN predicate is used to calculate a condition and when it's true, its THEN will be executed.
WhenClauseBNF	The query BNF for the when clause of the case expression.
WhenClauseFactory	This WhenClauseFactory creates a new WhenClause when the portion of the query to parse starts with WHEN.
WhereClause	The WHERE clause of a query consists of a conditional expression used to select objects or values that satisfy the expression.
WhereClauseBNF	The query BNF for the where clause.
WhereClauseFactory	This WhereClauseFactory creates a new WhereClause when the portion of the query to parse starts with WHERE.

Enum Summary

Enum	Description
FunctionExpressionFactory.ParameterCount	The number of parameters a FunctionExpression can have.
IdentifierRole	A role describes the purpose of the JPQL identifier.
OrderByItem.NullOrdering	This enumeration lists all the possible choices for ordering nulls in an item.
OrderByItem.Ordering	This enumeration lists all the possible choices for ordering an item.
TrimExpression.Specification	The possible ways to trim the string.

Package org.eclipse.persistence.jpa.jpql.parser Description

This is the core of Hermes, this package contains the classes that can parse a JPQL query.