public void backupAck ( long id , Address from , int topologyId ) { BaseAckTarget ackTarget = collectorMap . get ( id ) ; if ( ackTarget instanceof SingleKeyCollector ) { ( ( SingleKeyCollector ) ackTarget ) . backupAck ( topologyId , from ) ; } else if ( ackTarget instanceof MultiTargetCollectorImpl ) { ( ( MultiTargetCollectorImpl ) ackTarget ) . backupAck ( topologyId , from ) ; } }
Acknowledges a write operation completion in the backup owner .