Package com.blazebit.persistence.impl.transform

Class ClauseAndJoinAwareResultVisitor

java.lang.Object

com.blazebit.persistence.parser.expression.InplaceModificationResultVisitorAdapter

com.blazebit.persistence.impl.transform.ClauseAndJoinAwareResultVisitor

All Implemented Interfaces:

Expression.ResultVisitor<Expression>

public class ClauseAndJoinAwareResultVisitor
extends InplaceModificationResultVisitorAdapter

This visitor keeps track of whether joins are required which might change depending on the predicates. It is also keeps the clause for which it is executed.

Since:

1.2.0

Author:

Christian Beikov, Moritz Becker

Field Summary

Fields

Modifier and Type	Field	Description
protected ClauseType	fromClause
protected boolean	joinRequired

Constructor Summary

Constructors

Constructor	Description
ClauseAndJoinAwareResultVisitor()

Method Summary

Modifier and Type	Method	Description
Expression	visit(ClauseType clauseType, Expression expression)
Expression	visit(EqPredicate predicate)
Expression	visit(InPredicate predicate)
Expression	visit(IsEmptyPredicate predicate)
Expression	visit(IsNullPredicate predicate)
Expression	visit(MemberOfPredicate predicate)

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

Methods inherited from class java.lang.Object

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

Field Details

fromClause

protected ClauseType fromClause

joinRequired

protected boolean joinRequired

Constructor Details

ClauseAndJoinAwareResultVisitor

public ClauseAndJoinAwareResultVisitor()

Method Details

visit

public Expression visit(ClauseType clauseType,
 Expression expression)

visit

public Expression visit(EqPredicate predicate)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter

visit

public Expression visit(InPredicate predicate)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter

visit

public Expression visit(MemberOfPredicate predicate)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter

visit

public Expression visit(IsEmptyPredicate predicate)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter

visit

public Expression visit(IsNullPredicate predicate)

Specified by:

visit in interface Expression.ResultVisitor<Expression>

Overrides:

visit in class InplaceModificationResultVisitorAdapter