com.redhat.lightblue.assoc.qrew.rules

Class EliminateNOTNOT

java.lang.Object

com.redhat.lightblue.assoc.qrew.Rewriter

com.redhat.lightblue.assoc.qrew.rules.EliminateNOTNOT

public class EliminateNOTNOT
extends Rewriter

If

   q={$not:{$not:{x}]}
 

this rewrites q as

   q=x
 

Field Summary

Fields

Modifier and Type	Field and Description
static Rewriter	INSTANCE

Constructor Summary

Constructors

Constructor and Description
EliminateNOTNOT()

Method Summary

Modifier and Type	Method and Description
QueryExpression	rewrite(QueryExpression q)

Methods inherited from class com.redhat.lightblue.assoc.qrew.Rewriter

dyncast

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Rewriter INSTANCE

Constructor Detail

EliminateNOTNOT

public EliminateNOTNOT()

Method Detail

rewrite

public QueryExpression rewrite(QueryExpression q)

Specified by:

rewrite in class Rewriter