Package org.apache.druid.query

Class FluentQueryRunner<T>

java.lang.Object

org.apache.druid.query.FluentQueryRunner<T>

All Implemented Interfaces:

QueryRunner<T>

public class FluentQueryRunner<T>
extends Object
implements QueryRunner<T>

Constructor Summary

Constructors

Constructor	Description
FluentQueryRunner(QueryRunner<T> runner, QueryToolChest<T,Query<T>> toolChest)

Method Summary

Modifier and Type	Method	Description
FluentQueryRunner<T>	applyPostMergeDecoration()
FluentQueryRunner<T>	applyPreMergeDecoration()
static <K,J extends Query<K>> FluentQueryRunner<K>	create(QueryRunner<K> runner, QueryToolChest<K,J> toolchest)
FluentQueryRunner<T>	emitCPUTimeMetric(ServiceEmitter emitter)
FluentQueryRunner<T>	emitCPUTimeMetric(ServiceEmitter emitter, AtomicLong accumulator)
FluentQueryRunner<T>	from(QueryRunner<T> runner)
FluentQueryRunner<T>	map(Function<QueryRunner<T>,QueryRunner<T>> mapFn)
FluentQueryRunner<T>	mergeResults(boolean willMergeRunner)	Delegates to QueryToolChest.mergeResults(QueryRunner, boolean).
FluentQueryRunner<T>	postProcess(PostProcessingOperator<T> postProcessing)
Sequence<T>	run(QueryPlus<T> queryPlus, ResponseContext responseContext)	Runs the given query and returns results in a time-ordered sequence.

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 Detail

FluentQueryRunner

public FluentQueryRunner(QueryRunner<T> runner,
                         QueryToolChest<T,Query<T>> toolChest)

Method Detail

create

public static <K,J extends Query<K>> FluentQueryRunner<K> create(QueryRunner<K> runner,
                                                                       QueryToolChest<K,J> toolchest)

run

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

Description copied from interface: QueryRunner

Runs the given query and returns results in a time-ordered sequence.

Specified by:

run in interface QueryRunner<T>

from

public FluentQueryRunner<T> from(QueryRunner<T> runner)

applyPostMergeDecoration

public FluentQueryRunner<T> applyPostMergeDecoration()

applyPreMergeDecoration

public FluentQueryRunner<T> applyPreMergeDecoration()

emitCPUTimeMetric

public FluentQueryRunner<T> emitCPUTimeMetric(ServiceEmitter emitter)

emitCPUTimeMetric

public FluentQueryRunner<T> emitCPUTimeMetric(ServiceEmitter emitter,
                                              AtomicLong accumulator)

postProcess

public FluentQueryRunner<T> postProcess(PostProcessingOperator<T> postProcessing)

mergeResults

public FluentQueryRunner<T> mergeResults(boolean willMergeRunner)

Delegates to QueryToolChest.mergeResults(QueryRunner, boolean).

See Also:

QueryToolChest.mergeResults(QueryRunner, boolean)

map

public FluentQueryRunner<T> map(Function<QueryRunner<T>,QueryRunner<T>> mapFn)