RewriteUtil (Lens 2.1.0-beta-incubating API)

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org.apache.lens.driver.cube
Class RewriteUtil

java.lang.Object
  org.apache.lens.driver.cube.RewriteUtil

public final class RewriteUtil
extends Object
extends Object

The Class RewriteUtil.

Nested Class Summary

static class RewriteUtil.DriverRewriterRunnable


Field Summary

static org.apache.log4j.Logger LOG


Method Summary

static DriverQueryPlan getRewriterPlan(RewriteUtil.DriverRewriterRunnable rewriter)


static boolean isCubeQuery(String query)
          Checks if is cube query.

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

Nested Class Summary
`static class`	`RewriteUtil.DriverRewriterRunnable`

Field Summary
`static org.apache.log4j.Logger`	`LOG`

Method Summary
`static DriverQueryPlan`	`getRewriterPlan(RewriteUtil.DriverRewriterRunnable rewriter)`
`static boolean`	`isCubeQuery(String query)` Checks if is cube query.
`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`

Field Detail

LOG

public static final org.apache.log4j.Logger LOG

Method Detail

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)

isCubeQuery

public static boolean isCubeQuery(String query)

Checks if is cube query.

Parameters:: query - the query
Returns:: true, if is cube query