Package 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	Description
static interface	TimelineServerView.TimelineCallback

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

ServerView.BaseSegmentCallback, ServerView.CallbackAction, ServerView.SegmentCallback, ServerView.ServerCallback

Method Summary

Modifier and Type	Method	Description
default List<DruidServerMetadata>	getDruidServerMetadatas()	Returns a snapshot of the current set of server metadata.
List<ImmutableDruidServer>	getDruidServers()	Returns a snapshot of the current servers, their metadata, and their inventory.
<T> QueryRunner<T>	getQueryRunner(DruidServer server)
<T extends TimelineLookup<String, ServerSelector>> Optional<T>	getTimeline(TableDataSource dataSource)	Returns the timeline for a table, 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, registerServerCallback

Method Details

getTimeline

<T extends TimelineLookup<String,
ServerSelector>>
Optional<T> getTimeline(TableDataSource dataSource)

Returns the timeline for a table, if it exists.

Parameters:

dataSource - the table

Returns:

timeline, if it exists

getDruidServerMetadatas

default List<DruidServerMetadata> getDruidServerMetadatas()

Returns a snapshot of the current set of server metadata.

getDruidServers

List<ImmutableDruidServer> getDruidServers()

Returns a snapshot of the current servers, their metadata, and their inventory.

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