org.apache.druid.client

Interface TimelineServerView.TimelineCallback

Enclosing interface:

TimelineServerView

public static interface TimelineServerView.TimelineCallback

Method Summary

Modifier and Type	Method and Description
ServerView.CallbackAction	segmentAdded(DruidServerMetadata server, DataSegment segment) Called when a segment on a particular server has been added to the timeline.
ServerView.CallbackAction	segmentRemoved(DataSegment segment) Called when a segment has been removed from all servers and is no longer present in the timeline.
ServerView.CallbackAction	serverSegmentRemoved(DruidServerMetadata server, DataSegment segment) Called when a segment is removed from a server.
ServerView.CallbackAction	timelineInitialized() Called once, when the timeline has been initialized.

Method Detail

timelineInitialized

ServerView.CallbackAction timelineInitialized()

Called once, when the timeline has been initialized.

Returns:

continue or unregister

segmentAdded

ServerView.CallbackAction segmentAdded(DruidServerMetadata server,
                                       DataSegment segment)

Called when a segment on a particular server has been added to the timeline. May be called multiple times for the same segment, if that segment is added on multiple servers.

Parameters:

server - the server

segment - the segment

Returns:

continue or unregister

segmentRemoved

ServerView.CallbackAction segmentRemoved(DataSegment segment)

Called when a segment has been removed from all servers and is no longer present in the timeline.

Parameters:

segment - the segment

Returns:

continue or unregister

serverSegmentRemoved

ServerView.CallbackAction serverSegmentRemoved(DruidServerMetadata server,
                                               DataSegment segment)

Called when a segment is removed from a server. Note that the timeline can still have the segment, even though it's removed from given server. segmentRemoved(DataSegment) is the authority on when segment is removed from the timeline.

Parameters:

server - The server that removed a segment

segment - The segment that was removed

Returns:

continue or unregister