org.apache.openjpa.persistence.criteria
Class CriteriaExpressionVisitor.AbstractVisitor
java.lang.Object
org.apache.openjpa.persistence.criteria.CriteriaExpressionVisitor.AbstractVisitor
- All Implemented Interfaces:
- CriteriaExpressionVisitor
- Direct Known Subclasses:
- CriteriaExpressionVisitor.ParameterVisitor
- Enclosing interface:
- CriteriaExpressionVisitor
public abstract static class CriteriaExpressionVisitor.AbstractVisitor
- extends Object
- implements CriteriaExpressionVisitor
An abstract implementation that can detect cycles during traversal.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
_visited
protected final Set<CriteriaExpression> _visited
CriteriaExpressionVisitor.AbstractVisitor
public CriteriaExpressionVisitor.AbstractVisitor()
exit
public void exit(CriteriaExpression node)
- Remembers the node being visited.
- Specified by:
exit
in interface CriteriaExpressionVisitor
isVisited
public boolean isVisited(CriteriaExpression node)
- Affirms if this node has been visited before.
- Specified by:
isVisited
in interface CriteriaExpressionVisitor
getTraversalStyle
public CriteriaExpressionVisitor.TraversalStyle getTraversalStyle(CriteriaExpression node)
- Returns PREFIX as the default traversal style.
- Specified by:
getTraversalStyle
in interface CriteriaExpressionVisitor
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