org.apache.druid.server

Class LocalQuerySegmentWalker

java.lang.Object

org.apache.druid.server.LocalQuerySegmentWalker

All Implemented Interfaces:

QuerySegmentWalker

public class LocalQuerySegmentWalker
extends Object
implements QuerySegmentWalker

Processor that computes Druid queries, single-threaded. The datasource for the query must satisfy DataSourceAnalysis.isConcreteBased() and DataSourceAnalysis.isGlobal(). Its base datasource must also be handleable by the provided SegmentWrangler. Mainly designed to be used by ClientQuerySegmentWalker.

Constructor Summary

Constructors

Constructor and Description
LocalQuerySegmentWalker(QueryRunnerFactoryConglomerate conglomerate, SegmentWrangler segmentWrangler, JoinableFactory joinableFactory, QueryScheduler scheduler, ServiceEmitter emitter)

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalQuerySegmentWalker

@Inject
public LocalQuerySegmentWalker(QueryRunnerFactoryConglomerate conglomerate,
                                       SegmentWrangler segmentWrangler,
                                       JoinableFactory joinableFactory,
                                       QueryScheduler scheduler,
                                       ServiceEmitter emitter)

Method Detail

getQueryRunnerForIntervals

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

Specified by:

getQueryRunnerForIntervals in interface QuerySegmentWalker

getQueryRunnerForSegments

public <T> QueryRunner<T> getQueryRunnerForSegments(Query<T> query,
                                                    Iterable<SegmentDescriptor> specs)

Specified by:

getQueryRunnerForSegments in interface QuerySegmentWalker