org.apache.lens.server.rewrite

Class CubeKeywordRemover

java.lang.Object

org.apache.lens.server.rewrite.CubeKeywordRemover

All Implemented Interfaces:

Phase1Rewriter, QueryRewriter

public class CubeKeywordRemover
extends Object
implements Phase1Rewriter

Constructor Summary

Constructors

Constructor and Description
CubeKeywordRemover()

Method Summary

Modifier and Type	Method and Description
void	init(org.apache.hadoop.conf.Configuration rewriteConf) Set conf for the rewriter
String	rewrite(String query, org.apache.hadoop.conf.Configuration queryConf, org.apache.hadoop.hive.conf.HiveConf metastoreConf) Rewrite.

Methods inherited from class java.lang.Object

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

Constructor Detail

CubeKeywordRemover

public CubeKeywordRemover()

Method Detail

rewrite

public String rewrite(String query,
                      org.apache.hadoop.conf.Configuration queryConf,
                      org.apache.hadoop.hive.conf.HiveConf metastoreConf)
               throws LensException

Description copied from interface: QueryRewriter

Rewrite.

Specified by:

rewrite in interface QueryRewriter

Parameters:

query - the query

queryConf - the query configuration

metastoreConf - The metastore configuration. If rewriters requires to access metastore, this configuration needs to passed

Returns:

the string

Throws:

LensException - the lens exception

init

public void init(org.apache.hadoop.conf.Configuration rewriteConf)

Description copied from interface: QueryRewriter

Set conf for the rewriter

Specified by:

init in interface QueryRewriter

Parameters:

rewriteConf - Configuration required for rewriter init