Package com.blazebit.persistence.impl

Class ImplicitJoinCorrelationPathReplacementVisitor

java.lang.Object

com.blazebit.persistence.parser.expression.InplaceModificationResultVisitorAdapter

com.blazebit.persistence.impl.ImplicitJoinCorrelationPathReplacementVisitor

All Implemented Interfaces:

Expression.ResultVisitor<Expression>

public class ImplicitJoinCorrelationPathReplacementVisitor
extends InplaceModificationResultVisitorAdapter

This visitor gathers information about supposed invalid implicit joins in the ON clause to be able to rewrite the predicate to EXISTS subqueries.

Since:

1.3.0

Author:

Christian Beikov

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ImplicitJoinCorrelationPathReplacementVisitor.CorrelationTransformEntry
static class	ImplicitJoinCorrelationPathReplacementVisitor.RootCorrelationEntry

Constructor Summary

Constructors

Constructor	Description
ImplicitJoinCorrelationPathReplacementVisitor()

Method Summary

Modifier and Type	Method	Description
void	addPathExpression(PathExpression pathExpression, ImplicitJoinNotAllowedException ex, boolean isInConjunction)
Collection<ImplicitJoinCorrelationPathReplacementVisitor.CorrelationTransformEntry>	getPathsToCorrelate()
Collection<ImplicitJoinCorrelationPathReplacementVisitor.RootCorrelationEntry>	getRootsToCorrelate()
Predicate	rewritePredicate(Predicate predicate)
Expression	visit(PathExpression expression)

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

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, 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

ImplicitJoinCorrelationPathReplacementVisitor

public ImplicitJoinCorrelationPathReplacementVisitor()

Method Details

addPathExpression

public void addPathExpression(PathExpression pathExpression,
 ImplicitJoinNotAllowedException ex,
 boolean isInConjunction)

getPathsToCorrelate

public Collection<ImplicitJoinCorrelationPathReplacementVisitor.CorrelationTransformEntry> getPathsToCorrelate()

getRootsToCorrelate

public Collection<ImplicitJoinCorrelationPathReplacementVisitor.RootCorrelationEntry> getRootsToCorrelate()

rewritePredicate

public Predicate rewritePredicate(Predicate predicate)

visit

public Expression visit(PathExpression expression)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter