com.espertech.esper.common.internal.epl.expression.visitor

Class ExprNodeSubselectDeclaredDotVisitor

java.lang.Object

com.espertech.esper.common.internal.epl.expression.visitor.ExprNodeSubselectDeclaredDotVisitor

All Implemented Interfaces:

ExprNodeVisitor

public class ExprNodeSubselectDeclaredDotVisitor
extends Object
implements ExprNodeVisitor

Visitor that collects subqueries, declared-expression and chained-dot.

Constructor Summary

Constructors

Constructor and Description
ExprNodeSubselectDeclaredDotVisitor() Ctor.

Method Summary

Modifier and Type	Method and Description
List<ExprDotNode>	getChainedExpressionsDot()
List<ExprDeclaredNode>	getDeclaredExpressions()
List<ExprSubselectNode>	getSubselects() Returns a list of lookup expression nodes.
boolean	isVisit(ExprNode exprNode) Allows visitor to indicate whether to visit a given node.
void	reset()
void	visit(ExprNode exprNode) Visit the given expression node.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.espertech.esper.common.internal.epl.expression.visitor.ExprNodeVisitor

isWalkDeclExprParam

Constructor Detail

ExprNodeSubselectDeclaredDotVisitor

public ExprNodeSubselectDeclaredDotVisitor()

Ctor.

Method Detail

reset

public void reset()

getSubselects

public List<ExprSubselectNode> getSubselects()

Returns a list of lookup expression nodes.

Returns:

lookup nodes

getChainedExpressionsDot

public List<ExprDotNode> getChainedExpressionsDot()

getDeclaredExpressions

public List<ExprDeclaredNode> getDeclaredExpressions()

isVisit

public boolean isVisit(ExprNode exprNode)

Description copied from interface: ExprNodeVisitor

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 ExprNodeVisitor

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)

Description copied from interface: ExprNodeVisitor

Visit the given expression node.

Specified by:

visit in interface ExprNodeVisitor

Parameters:

exprNode - is the expression node to visit