akka.persistence.journal

Interface AsyncRecovery

All Known Subinterfaces:

AsyncWriteJournal, AsyncWriteProxy, LeveldbRecovery, LeveldbStore, SyncWriteJournal

All Known Implementing Classes:

AsyncRecovery, AsyncWriteJournal, InmemJournal, LeveldbJournal, SharedLeveldbJournal, SharedLeveldbStore, SyncWriteJournal

public interface AsyncRecovery

Asynchronous message replay and sequence number recovery interface.

Method Summary

Modifier and Type	Method and Description
scala.concurrent.Future<java.lang.Object>	asyncReadHighestSequenceNr(java.lang.String persistenceId, long fromSequenceNr) Plugin API: asynchronously reads the highest stored sequence number for the given persistenceId.
scala.concurrent.Future<scala.runtime.BoxedUnit>	asyncReplayMessages(java.lang.String persistenceId, long fromSequenceNr, long toSequenceNr, long max, scala.Function1<PersistentRepr,scala.runtime.BoxedUnit> replayCallback) Plugin API: asynchronously replays persistent messages.

Method Detail

asyncReplayMessages

scala.concurrent.Future<scala.runtime.BoxedUnit> asyncReplayMessages(java.lang.String persistenceId,
                                                                     long fromSequenceNr,
                                                                     long toSequenceNr,
                                                                     long max,
                                                                     scala.Function1<PersistentRepr,scala.runtime.BoxedUnit> replayCallback)

Plugin API: asynchronously replays persistent messages. Implementations replay a message by calling replayCallback. The returned future must be completed when all messages (matching the sequence number bounds) have been replayed. The future must be completed with a failure if any of the persistent messages could not be replayed.

The replayCallback must also be called with messages that have been marked as deleted. In this case a replayed message's deleted method must return true.

Parameters:

persistenceId - persistent actor id.

fromSequenceNr - sequence number where replay should start (inclusive).

toSequenceNr - sequence number where replay should end (inclusive).

max - maximum number of messages to be replayed.

replayCallback - called to replay a single message. Can be called from any thread.

Returns:

(undocumented)

See Also:

AsyncWriteJournal, SyncWriteJournal

asyncReadHighestSequenceNr

scala.concurrent.Future<java.lang.Object> asyncReadHighestSequenceNr(java.lang.String persistenceId,
                                                                     long fromSequenceNr)

Plugin API: asynchronously reads the highest stored sequence number for the given persistenceId.

Parameters:

persistenceId - persistent actor id.

fromSequenceNr - hint where to start searching for the highest sequence number.

Returns:

(undocumented)