Package org.apache.druid.server.coordination

Class ServerManager.ResourceManagingQueryRunner<T>

java.lang.Object

org.apache.druid.server.coordination.ServerManager.ResourceManagingQueryRunner<T>

All Implemented Interfaces:

QueryRunner<T>

Enclosing class:

ServerManager

public final class ServerManager.ResourceManagingQueryRunner<T>
extends Object
implements QueryRunner<T>

QueryRunner that on run builds a set of QueryRunner for a set of SegmentDescriptor and merges them using the QueryToolChest. The VersionedIntervalTimeline provides segment references, which are registered with a closer as they are acquired, and then released in the baggage of merged result Sequence

Constructor Summary

Constructors

Constructor	Description
ResourceManagingQueryRunner(VersionedIntervalTimeline<String,ReferenceCountedSegmentProvider> timeline, QueryRunnerFactory<T,Query<T>> factory, QueryToolChest<T,Query<T>> toolChest, ExecutionVertex ev, Iterable<SegmentDescriptor> specs)

Method Summary

Modifier and Type	Method	Description
Sequence<T>	run(QueryPlus<T> queryPlus, ResponseContext responseContext)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.query.QueryRunner

run

Constructor Details

ResourceManagingQueryRunner

public ResourceManagingQueryRunner(VersionedIntervalTimeline<String,ReferenceCountedSegmentProvider> timeline,
 QueryRunnerFactory<T,Query<T>> factory,
 QueryToolChest<T,Query<T>> toolChest,
 ExecutionVertex ev,
 Iterable<SegmentDescriptor> specs)

Method Details

run

public Sequence<T> run(QueryPlus<T> queryPlus,
 ResponseContext responseContext)

Specified by:

run in interface QueryRunner<T>