org.apache.druid.client

Class SegmentServerSelector

java.lang.Object

org.apache.druid.java.util.common.Pair<ServerSelector,SegmentDescriptor>

org.apache.druid.client.SegmentServerSelector

public class SegmentServerSelector
extends Pair<ServerSelector,SegmentDescriptor>

Given a SegmentDescriptor, get a ServerSelector to use to pick a DruidServer to query. Used by CachingClusteredClient on the broker to fan out queries to historical and realtime data. Used by LocalQuerySegmentWalker on the broker for on broker queries

Field Summary

Fields inherited from class org.apache.druid.java.util.common.Pair

lhs, rhs

Constructor Summary

Constructors

Constructor and Description
SegmentServerSelector(SegmentDescriptor segment) This is for a segment hosted locally
SegmentServerSelector(ServerSelector server, SegmentDescriptor segment) This is for a segment hosted on a remote server, where ServerSelector may be used to pick a DruidServer to query.

Method Summary

Modifier and Type	Method and Description
SegmentDescriptor	getSegmentDescriptor()
ServerSelector	getServer() This may be null if SegmentDescriptor is locally available, but will definitely not be null for segments which must be queried remotely (e.g.

Methods inherited from class org.apache.druid.java.util.common.Pair

equals, hashCode, of, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SegmentServerSelector

public SegmentServerSelector(ServerSelector server,
                             SegmentDescriptor segment)

This is for a segment hosted on a remote server, where ServerSelector may be used to pick a DruidServer to query.

SegmentServerSelector

public SegmentServerSelector(SegmentDescriptor segment)

This is for a segment hosted locally

Method Detail

getServer

@Nullable
public ServerSelector getServer()

This may be null if SegmentDescriptor is locally available, but will definitely not be null for segments which must be queried remotely (e.g. CachingClusteredClient)

getSegmentDescriptor

public SegmentDescriptor getSegmentDescriptor()