org.apache.openjpa.persistence.criteria
Interface CriteriaExpressionVisitor

All Known Implementing Classes:

CriteriaExpressionVisitor.AbstractVisitor, CriteriaExpressionVisitor.ParameterVisitor

public interface CriteriaExpressionVisitor

A visitor for Criteria Expression nodes.

Since:

2.0.0

Author:

Pinaki Poddar

Nested Class Summary

static class	CriteriaExpressionVisitor.AbstractVisitor An abstract implementation that can detect cycles during traversal.
static class	CriteriaExpressionVisitor.ParameterVisitor A visitor to register Parameter expression of a query.
static class	CriteriaExpressionVisitor.TraversalStyle

Method Summary

void	enter(CriteriaExpression node) Enter the given node.
void	exit(CriteriaExpression node) Exit the given node.
CriteriaExpressionVisitor.TraversalStyle	getTraversalStyle(CriteriaExpression node) Get the traversal style of the children of the given node.
boolean	isVisited(CriteriaExpression node) Affirms if this node has been visited.

Method Detail

enter

void enter(CriteriaExpression node)

Enter the given node.

exit

void exit(CriteriaExpression node)

Exit the given node.

isVisited

boolean isVisited(CriteriaExpression node)

Affirms if this node has been visited.

getTraversalStyle

CriteriaExpressionVisitor.TraversalStyle getTraversalStyle(CriteriaExpression node)

Get the traversal style of the children of the given node.