org.apache.lens.server.rewrite

Class RewriteUtil

java.lang.Object

org.apache.lens.server.rewrite.RewriteUtil

public final class RewriteUtil
extends Object

The Class RewriteUtil.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RewriteUtil.DriverRewriterRunnable

Method Summary

Modifier and Type	Method and Description
static CubeMetastoreClient	getClient(org.apache.hadoop.hive.conf.HiveConf conf)
static DriverQueryPlan	getRewriterPlan(RewriteUtil.DriverRewriterRunnable rewriter)
static Map<LensDriver,RewriteUtil.DriverRewriterRunnable>	rewriteQuery(AbstractQueryContext ctx) Rewrite query.

Methods inherited from class java.lang.Object

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

Method Detail

getClient

public static CubeMetastoreClient getClient(org.apache.hadoop.hive.conf.HiveConf conf)
                                     throws LensException

Throws:

LensException

rewriteQuery

public static Map<LensDriver,RewriteUtil.DriverRewriterRunnable> rewriteQuery(AbstractQueryContext ctx)
                                                                       throws LensException

Rewrite query.

Parameters:

ctx - the query context

Returns:

the map

Throws:

LensException - the lens exception

getRewriterPlan

public static DriverQueryPlan getRewriterPlan(RewriteUtil.DriverRewriterRunnable rewriter)