org.apache.druid.server

Class ClientQuerySegmentWalker

java.lang.Object

org.apache.druid.server.ClientQuerySegmentWalker

All Implemented Interfaces:

QuerySegmentWalker

public class ClientQuerySegmentWalker
extends Object
implements QuerySegmentWalker

Query handler for the Broker processes (see CliBroker).

This class is responsible for:

1) Running queries on the cluster using its 'clusterClient' 2) Running queries locally (when all datasources are global) using its 'localClient' 3) Inlining subqueries if necessary, in service of the above two goals

Constructor Summary

Constructors

Constructor and Description
ClientQuerySegmentWalker(ServiceEmitter emitter, QuerySegmentWalker clusterClient, QuerySegmentWalker localClient, QueryToolChestWarehouse warehouse, JoinableFactory joinableFactory, RetryQueryRunnerConfig retryConfig, com.fasterxml.jackson.databind.ObjectMapper objectMapper, ServerConfig serverConfig, Cache cache, CacheConfig cacheConfig)

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

ClientQuerySegmentWalker

public ClientQuerySegmentWalker(ServiceEmitter emitter,
                                QuerySegmentWalker clusterClient,
                                QuerySegmentWalker localClient,
                                QueryToolChestWarehouse warehouse,
                                JoinableFactory joinableFactory,
                                RetryQueryRunnerConfig retryConfig,
                                com.fasterxml.jackson.databind.ObjectMapper objectMapper,
                                ServerConfig serverConfig,
                                Cache cache,
                                CacheConfig cacheConfig)

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