ExprNodeIdentifierCollectVisitorWContainer (Esper Common API Documentation)

java.lang.Object

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

All Implemented Interfaces:: ExprNodeVisitorWithParent

public class ExprNodeIdentifierCollectVisitorWContainer extends Object implements ExprNodeVisitorWithParent

Visitor that collects event property identifier information under expression nodes.

Constructor Summary

Constructors

Constructor

Description

ExprNodeIdentifierCollectVisitorWContainer()

Ctor.
Method Summary

Modifier and Type

Method

Description

List<Pair<ExprNode,ExprIdentNode>>

getExprProperties()

Returns list of event property stream numbers and names that uniquely identify which property is from whcih stream, and the name of each.

boolean

isVisit(ExprNode exprNode)

Allows visitor to indicate whether to visit a given node.

void

visit(ExprNode exprNode, ExprNode containerExprNode)

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.ExprNodeVisitorWithParent
isWalkDeclExprParam

Constructor Details
- ExprNodeIdentifierCollectVisitorWContainer
  
  public ExprNodeIdentifierCollectVisitorWContainer()
  
  Ctor.
Method Details
- 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
- getExprProperties
  
  public List<Pair<ExprNode,ExprIdentNode>> getExprProperties()
  
  Returns list of event property stream numbers and names that uniquely identify which property is from whcih stream, and the name of each.
  
  Returns:
  
  list of event property statement-unique info
- visit
  
  public void visit(ExprNode exprNode, ExprNode containerExprNode)
  
  Description copied from interface: ExprNodeVisitorWithParent
  
  Visit the given expression node.
  
  Specified by:
  
  visit in interface ExprNodeVisitorWithParent
  
  Parameters:
  
  exprNode - is the expression node to visit
  
  containerExprNode - parent to visit