org.apache.druid.client

Interface TimelineServerView

All Superinterfaces:

ServerView

All Known Implementing Classes:

BrokerServerView

public interface TimelineServerView
extends ServerView

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	TimelineServerView.TimelineCallback

Nested classes/interfaces inherited from interface org.apache.druid.client.ServerView

ServerView.BaseSegmentCallback, ServerView.CallbackAction, ServerView.SegmentCallback, ServerView.ServerRemovedCallback

Method Summary

Modifier and Type	Method and Description
List<ImmutableDruidServer>	getDruidServers() Returns a list of ImmutableDruidServer
<T> QueryRunner<T>	getQueryRunner(DruidServer server)
Optional<? extends TimelineLookup<String,ServerSelector>>	getTimeline(DataSourceAnalysis analysis) Returns the timeline for a datasource, if it exists.
void	registerTimelineCallback(Executor exec, TimelineServerView.TimelineCallback callback) Register a callback for state changes in the timeline managed by this TimelineServerView.

Methods inherited from interface org.apache.druid.client.ServerView

registerSegmentCallback, registerServerRemovedCallback

Method Detail

getTimeline

Optional<? extends TimelineLookup<String,ServerSelector>> getTimeline(DataSourceAnalysis analysis)

Returns the timeline for a datasource, if it exists. The analysis object passed in must represent a scan-based datasource of a single table.

Parameters:

analysis - data source analysis information

Returns:

timeline, if it exists

Throws:

IllegalStateException - if 'analysis' does not represent a scan-based datasource of a single table

getDruidServers

List<ImmutableDruidServer> getDruidServers()

Returns a list of ImmutableDruidServer

getQueryRunner

<T> QueryRunner<T> getQueryRunner(DruidServer server)

registerTimelineCallback

void registerTimelineCallback(Executor exec,
                              TimelineServerView.TimelineCallback callback)

Register a callback for state changes in the timeline managed by this TimelineServerView. The callback will be called after the relevant change is made to this TimelineServerView's timeline.

Parameters:

exec - executor in which to run the callback

callback - the callback