com.redhat.lightblue.assoc.qrew

Class QueryRewriter

java.lang.Object

com.redhat.lightblue.assoc.qrew.Rewriter

com.redhat.lightblue.assoc.qrew.QueryRewriter

public final class QueryRewriter
extends Rewriter

Implementation of Rewriter that orchestrates rewriting rules with registered Rewriter instances.

Constructor Summary

Constructors

Constructor and Description
QueryRewriter()
QueryRewriter(boolean withDefaultRules)

Method Summary

Methods

Modifier and Type	Method and Description
void	register(Rewriter rule) Register a Rewriter instance.
protected void	registerDefaultRules() Register default rules.
QueryExpression	rewrite(QueryExpression q)
protected QueryExpression	rewriteIteration(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

Constructor Detail

QueryRewriter

public QueryRewriter()

QueryRewriter

public QueryRewriter(boolean withDefaultRules)

Method Detail

register

public void register(Rewriter rule)

Register a Rewriter instance. If attempt to register QueryRewriter returns without doing anything.

Parameters:

rule - the rewriter to register

registerDefaultRules

protected void registerDefaultRules()

Register default rules.

rewriteIteration

protected QueryExpression rewriteIteration(QueryExpression q)

rewrite

public QueryExpression rewrite(QueryExpression q)

Specified by:

rewrite in class Rewriter