org.tranql.ql
Class IsNull

java.lang.Object
  extended by org.tranql.ql.AbstractNode
      extended by org.tranql.ql.IsNull
All Implemented Interfaces:
java.io.Serializable, Node

public class IsNull
extends AbstractNode

This node represents an IS NULL operator in a where clause. This node requires one child. foo IS [NOT] NULL

Version:
$Revision: 138 $ $Date: 2004-10-21 05:52:45 +0200 (Thu, 21 Oct 2004) $
See Also:
Serialized Form

Constructor Summary
IsNull(boolean not)
           
 
Method Summary
 boolean isNot()
           
 java.lang.Object visit(QueryVisitor visitor, java.lang.Object param)
           
 
Methods inherited from class org.tranql.ql.AbstractNode
addChild, getChild, getSibling, isOnlyChild, setSibling
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

IsNull

public IsNull(boolean not)
Method Detail

isNot

public boolean isNot()

visit

public java.lang.Object visit(QueryVisitor visitor,
                              java.lang.Object param)
                       throws QueryException
Throws:
QueryException


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