org.eclipse.persistence.jpa.jpql
Class EclipseLinkJPQLQueryContext

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

public class EclipseLinkJPQLQueryContext
extends JPQLQueryContext

This context is used to store information related to the JPQL query. It supports the EclipseLink extension over the default JPQL grammar.

 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

	EclipseLinkJPQLQueryContext(JPQLGrammar jpqlGrammar) Creates a new EclipseLinkJPQLQueryContext.
protected	EclipseLinkJPQLQueryContext(JPQLQueryContext parent, Expression currentQuery) Creates a new EclipseLinkJPQLQueryContext.

Method Summary

protected DeclarationResolver	buildDeclarationResolver(DeclarationResolver parent)
protected JPQLQueryContext	buildJPQLQueryContext(JPQLQueryContext currentContext, Expression currentQuery)
protected LiteralVisitor	buildLiteralVisitor()
protected EclipseLinkParameterTypeVisitor	buildParameterTypeVisitor()
protected ResolverBuilder	buildResolverBuilder()
EclipseLinkJPQLQueryContext	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, 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

EclipseLinkJPQLQueryContext

public EclipseLinkJPQLQueryContext(JPQLGrammar jpqlGrammar)

Creates a new EclipseLinkJPQLQueryContext.

Parameters:

jpqlGrammar - The grammar that defines how to parse a JPQL query

EclipseLinkJPQLQueryContext

protected EclipseLinkJPQLQueryContext(JPQLQueryContext parent,
                                      Expression currentQuery)

Creates a new EclipseLinkJPQLQueryContext.

Parameters:

parent - The parent context

currentQuery - The parsed tree representation of the subquery

Method Detail

buildDeclarationResolver

protected DeclarationResolver buildDeclarationResolver(DeclarationResolver parent)

Overrides:

buildDeclarationResolver in class JPQLQueryContext

buildJPQLQueryContext

protected JPQLQueryContext buildJPQLQueryContext(JPQLQueryContext currentContext,
                                                 Expression currentQuery)

Specified by:

buildJPQLQueryContext in class JPQLQueryContext

buildLiteralVisitor

protected LiteralVisitor buildLiteralVisitor()

Specified by:

buildLiteralVisitor in class JPQLQueryContext

buildParameterTypeVisitor

protected EclipseLinkParameterTypeVisitor buildParameterTypeVisitor()

Overrides:

buildParameterTypeVisitor in class JPQLQueryContext

buildResolverBuilder

protected ResolverBuilder buildResolverBuilder()

Specified by:

buildResolverBuilder in class JPQLQueryContext

getParent

public EclipseLinkJPQLQueryContext 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