Package com.blazebit.persistence.impl

Class EntitySelectResolveVisitor

java.lang.Object

com.blazebit.persistence.parser.expression.VisitorAdapter

com.blazebit.persistence.impl.EntitySelectResolveVisitor

All Implemented Interfaces:

Expression.Visitor

public class EntitySelectResolveVisitor
extends VisitorAdapter

This visitor resolves entity references to their attributes. This is needed for entity references in the select clause when used in combination with aggregate functions. We have to decompose the entity and add the components to the group by because all components will end up in the select clause. Only until grouping by entities is resolved: https://hibernate.atlassian.net/browse/HHH-1615

Since:

1.0.5

Author:

Christian Beikov

Constructor Summary

Constructors

Constructor	Description
EntitySelectResolveVisitor(EntityMetamodel m, JpaProvider jpaProvider, Set<PathExpression> pathExpressions)

Method Summary

Modifier and Type	Method	Description
JoinNode	getRootNode()
void	visit(FunctionExpression expression)
void	visit(ListIndexExpression expression)
void	visit(MapEntryExpression expression)
void	visit(MapKeyExpression expression)
void	visit(MapValueExpression expression)
void	visit(PathExpression expression)

Methods inherited from class com.blazebit.persistence.parser.expression.VisitorAdapter

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Constructor Details

EntitySelectResolveVisitor

public EntitySelectResolveVisitor(EntityMetamodel m,
 JpaProvider jpaProvider,
 Set<PathExpression> pathExpressions)

Method Details

getRootNode

public JoinNode getRootNode()

visit

public void visit(FunctionExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter

visit

public void visit(PathExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter

visit

public void visit(ListIndexExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter

visit

public void visit(MapEntryExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter

visit

public void visit(MapKeyExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter

visit

public void visit(MapValueExpression expression)

Specified by:

visit in interface Expression.Visitor

Overrides:

visit in class VisitorAdapter