org.eclipse.persistence.jpa.jpql
Class BaseDeclarationIdentificationVariableFinder

java.lang.Object
  org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
      org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor
          org.eclipse.persistence.jpa.jpql.BaseDeclarationIdentificationVariableFinder

All Implemented Interfaces:

ExpressionVisitor

public class BaseDeclarationIdentificationVariableFinder
extends AbstractTraverseParentVisitor

This visitor traverses the parsed tree and retrieves the IdentificationVariable defined in the base range variable declaration for the top-level statement if and only if the query is a DELETE or UPDATE query.

Version:

2.5

Author:

Pascal Filion

Since:

2.5

Field Summary

IdentificationVariable	expression The IdentificationVariable used to define the abstract schema name from either the UPDATE or DELETE clause.
protected boolean	traverse Determines if the RangeVariableDeclaration should traverse its identification variable expression or simply visit the parent hierarchy.

Constructor Summary

BaseDeclarationIdentificationVariableFinder()
Creates a new BaseDeclarationIdentificationVariableFinder.

Method Summary

void	visit(BadExpression expression) Visits the BadExpression expression.
void	visit(CollectionExpression expression) Visits the CollectionExpression expression.
void	visit(DeleteClause expression) Visits the DeleteClause expression.
void	visit(DeleteStatement expression) Visits the DeleteStatement expression.
void	visit(FromClause expression) Visits the FromClause expression.
void	visit(IdentificationVariable expression) Visits the IdentificationVariable expression.
void	visit(IdentificationVariableDeclaration expression) Visits the IdentificationVariableDeclaration expression.
void	visit(JPQLExpression expression) Visits the JPQLExpression expression.
void	visit(NullExpression expression) Visits the NullExpression expression.
void	visit(RangeVariableDeclaration expression) Visits the RangeVariableDeclaration expression.
void	visit(SelectStatement expression) Visits the SelectStatement expression.
void	visit(UnknownExpression expression) Visits the UnknownExpression expression.
void	visit(UpdateClause expression) Visits the UpdateClause expression.
void	visit(UpdateStatement expression) Visits the UpdateStatement expression.

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AbstractTraverseParentVisitor

visit

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor

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, 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 Detail

expression

public IdentificationVariable expression

The IdentificationVariable used to define the abstract schema name from either the UPDATE or DELETE clause.

traverse

protected boolean traverse

Determines if the RangeVariableDeclaration should traverse its identification variable expression or simply visit the parent hierarchy.

Constructor Detail

BaseDeclarationIdentificationVariableFinder

public BaseDeclarationIdentificationVariableFinder()

Creates a new BaseDeclarationIdentificationVariableFinder.

Method Detail

visit

public void visit(BadExpression expression)

Visits the BadExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(CollectionExpression expression)

Visits the CollectionExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(DeleteClause expression)

Visits the DeleteClause expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(DeleteStatement expression)

Visits the DeleteStatement expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(FromClause expression)

Visits the FromClause expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(IdentificationVariable expression)

Visits the IdentificationVariable expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(IdentificationVariableDeclaration expression)

Visits the IdentificationVariableDeclaration expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(JPQLExpression expression)

Visits the JPQLExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AbstractTraverseParentVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(NullExpression expression)

Visits the NullExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(RangeVariableDeclaration expression)

Visits the RangeVariableDeclaration expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(SelectStatement expression)

Visits the SelectStatement expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The Expression to visit

visit

public void visit(UnknownExpression expression)

Visits the UnknownExpression expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The UnknownExpression to visit

visit

public void visit(UpdateClause expression)

Visits the UpdateClause expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The UpdateClause to visit

visit

public void visit(UpdateStatement expression)

Visits the UpdateStatement expression.

Specified by:

visit in interface ExpressionVisitor

Overrides:

visit in class AnonymousExpressionVisitor

Parameters:

expression - The UpdateStatement to visit