com.espertech.esper.epl.expression.visitor

Class ExprNodeIdentVisitorWParent

java.lang.Object

com.espertech.esper.epl.expression.visitor.ExprNodeIdentVisitorWParent

All Implemented Interfaces:

ExprNodeVisitorWithParent

public class ExprNodeIdentVisitorWParent
extends Object
implements ExprNodeVisitorWithParent

Visitor for getting a list of identifier nodes with their parent node, which can be null if there is no parent node.

Constructor Summary

Constructors

Constructor and Description
ExprNodeIdentVisitorWParent()

Method Summary

Modifier and Type	Method and Description
List<Pair<ExprNode,ExprIdentNode>>	getIdentNodes()
boolean	isVisit(ExprNode exprNode) Allows visitor to indicate whether to visit a given node.
void	visit(ExprNode exprNode, ExprNode parentExprNode) Visit the given expression node.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprNodeIdentVisitorWParent

public ExprNodeIdentVisitorWParent()

Method Detail

isVisit

public boolean isVisit(ExprNode exprNode)

Description copied from interface: ExprNodeVisitorWithParent

Allows visitor to indicate whether to visit a given node. Implicitly if a visitor doesn't visit a node it would also not visit any descendent child nodes of that node.

Specified by:

isVisit in interface ExprNodeVisitorWithParent

Parameters:

exprNode - is the node in questions

Returns:

true if the visitor wants to visit the child node (next call is visit), or false to skip child

visit

public void visit(ExprNode exprNode,
                  ExprNode parentExprNode)

Description copied from interface: ExprNodeVisitorWithParent

Visit the given expression node.

Specified by:

visit in interface ExprNodeVisitorWithParent

Parameters:

exprNode - is the expression node to visit

parentExprNode - parent to visit

getIdentNodes

public List<Pair<ExprNode,ExprIdentNode>> getIdentNodes()