Package org.apache.druid.server

Class NoopQuerySegmentWalker

java.lang.Object

org.apache.druid.server.NoopQuerySegmentWalker

All Implemented Interfaces:

org.apache.druid.query.QuerySegmentWalker

public class NoopQuerySegmentWalker
extends Object
implements org.apache.druid.query.QuerySegmentWalker

An empty implementation of QuerySegmentWalker. Some extentions need implementation of QuerySegmentWalker, but this class will not be used in router. Bind NoopQuerySegmentWalker in router to allow router load some extentions, which makes query can run through router.

Constructor Summary

Constructors

Constructor	Description
NoopQuerySegmentWalker()

Method Summary

Modifier and Type	Method	Description
<T> org.apache.druid.query.QueryRunner<T>	getQueryRunnerForIntervals(org.apache.druid.query.Query<T> query, Iterable<org.joda.time.Interval> intervals)
<T> org.apache.druid.query.QueryRunner<T>	getQueryRunnerForSegments(org.apache.druid.query.Query<T> query, Iterable<org.apache.druid.query.SegmentDescriptor> specs)

Methods inherited from class java.lang.Object

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

Constructor Detail

NoopQuerySegmentWalker

public NoopQuerySegmentWalker()

Method Detail

getQueryRunnerForIntervals

public <T> org.apache.druid.query.QueryRunner<T> getQueryRunnerForIntervals(org.apache.druid.query.Query<T> query,
                                                                            Iterable<org.joda.time.Interval> intervals)

Specified by:

getQueryRunnerForIntervals in interface org.apache.druid.query.QuerySegmentWalker

getQueryRunnerForSegments

public <T> org.apache.druid.query.QueryRunner<T> getQueryRunnerForSegments(org.apache.druid.query.Query<T> query,
                                                                           Iterable<org.apache.druid.query.SegmentDescriptor> specs)

Specified by:

getQueryRunnerForSegments in interface org.apache.druid.query.QuerySegmentWalker