RetType | 
TaskAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
Void | 
SegmentNukeAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
Void | 
SegmentMetadataUpdateAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
List<io.druid.timeline.DataSegment> | 
SegmentListUsedAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
List<io.druid.timeline.DataSegment> | 
SegmentListUnusedAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
Set<io.druid.timeline.DataSegment> | 
SegmentInsertAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
com.google.common.base.Optional<TaskLock> | 
LockTryAcquireAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
Void | 
LockReleaseAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
List<TaskLock> | 
LockListAction.perform(Task task,
       TaskActionToolbox toolbox)  | 
TaskLock | 
LockAcquireAction.perform(Task task,
       TaskActionToolbox toolbox)  |