com.redhat.lightblue.assoc.qrew.rules

Class EliminateSingleANDOR

java.lang.Object

com.redhat.lightblue.assoc.qrew.Rewriter

com.redhat.lightblue.assoc.qrew.rules.EliminateSingleANDOR

public class EliminateSingleANDOR
extends Rewriter

If

   q={$or:{x}} or q={$and:{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
EliminateSingleANDOR()

Method Summary

Methods

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

EliminateSingleANDOR

public EliminateSingleANDOR()

Method Detail

rewrite

public QueryExpression rewrite(QueryExpression q)

Specified by:

rewrite in class Rewriter