org.eclipse.persistence.jpa.jpql
Class DefaultJPQLQueryContext

java.lang.Object
  org.eclipse.persistence.jpa.jpql.JPQLQueryContext
      org.eclipse.persistence.jpa.jpql.DefaultJPQLQueryContext

public class DefaultJPQLQueryContext
extends JPQLQueryContext

This context is used to store information related to the JPQL query.

 IQuery externalQuery = ...;

 JPQLQueryContext context = new JPQLQueryContext(DefaultJPQLGrammar.instance());
 context.setQuery(query);

If the JPQL query is already parsed, then the context can use it and it needs to be set before setting the IQuery:

 JPQLExpression jpqlExpression = ...;

 JPQLQueryContext context = new JPQLQueryContext(DefaultJPQLGrammar.instance());
 context.setJPQLExpression(jpqlExpression);
 context.setQuery(query);

Version:

2.4

Author:

Pascal Filion

Since:

2.4

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.persistence.jpa.jpql.JPQLQueryContext

JPQLQueryContext.InputParameterVisitor, JPQLQueryContext.QueryExpressionVisitor

Field Summary

Fields inherited from class org.eclipse.persistence.jpa.jpql.JPQLQueryContext

currentContext, parent

Constructor Summary

	DefaultJPQLQueryContext(JPQLGrammar jpqlGrammar) Creates a new DefaultJPQLQueryContext.
protected	DefaultJPQLQueryContext(JPQLQueryContext parent, Expression currentQuery) Creates a new sub-DefaultJPQLQueryContext.

Method Summary

protected JPQLQueryContext	buildJPQLQueryContext(JPQLQueryContext currentContext, Expression currentQuery)
protected DefaultLiteralVisitor	buildLiteralVisitor()
protected DefaultParameterTypeVisitor	buildParameterTypeVisitor()
protected DefaultResolverBuilder	buildResolverBuilder()
DefaultJPQLQueryContext	getParent() Returns the parent context if the current context is not the root context.

Methods inherited from class org.eclipse.persistence.jpa.jpql.JPQLQueryContext

buildDeclarationResolver, buildDeclarationResolver, buildInputParameter, buildQueryExpressionVisitor, convertUnqualifiedDeclaration, dispose, disposeSubqueryContext, findInputParameters, getActualCurrentQuery, getActualDeclarationResolver, getCurrentContext, getCurrentQuery, getDeclarationResolver, getDeclarationResolver, getDeclarationResolverImp, getDeclarations, getEnumType, getExpressionRegistry, getGrammar, getInputParameterVisitor, getJoins, getJPAVersion, getJPQLExpression, getJPQLQuery, getLiteralVisitor, getMapping, getParameterType, getParameterTypeVisitor, getProvider, getQuery, getQueryExpression, getQueryExpressionVisitor, getResolver, getResolver, getResolverBuilder, getResultVariables, getType, getType, getType, getTypeDeclaration, getTypeHelper, getTypeRepository, hasJoins, initialize, initializeRoot, isCollectionIdentificationVariable, isRangeIdentificationVariable, isResultVariable, isSubquery, literal, newSubqueryContext, setJPQLExpression, setQuery, store, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DefaultJPQLQueryContext

public DefaultJPQLQueryContext(JPQLGrammar jpqlGrammar)

Creates a new DefaultJPQLQueryContext.

DefaultJPQLQueryContext

protected DefaultJPQLQueryContext(JPQLQueryContext parent,
                                  Expression currentQuery)

Creates a new sub-DefaultJPQLQueryContext.

Parameters:

parent - The parent context

currentQuery - The parsed tree representation of the subquery

Method Detail

buildJPQLQueryContext

protected JPQLQueryContext buildJPQLQueryContext(JPQLQueryContext currentContext,
                                                 Expression currentQuery)

Specified by:

buildJPQLQueryContext in class JPQLQueryContext

buildLiteralVisitor

protected DefaultLiteralVisitor buildLiteralVisitor()

Specified by:

buildLiteralVisitor in class JPQLQueryContext

buildParameterTypeVisitor

protected DefaultParameterTypeVisitor buildParameterTypeVisitor()

Overrides:

buildParameterTypeVisitor in class JPQLQueryContext

buildResolverBuilder

protected DefaultResolverBuilder buildResolverBuilder()

Specified by:

buildResolverBuilder in class JPQLQueryContext

getParent

public DefaultJPQLQueryContext getParent()

Returns the parent context if the current context is not the root context.

Overrides:

getParent in class JPQLQueryContext

Returns:

The parent context or null if the current context is the root