40 lines
1.6 KiB
Java
40 lines
1.6 KiB
Java
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/**
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* Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
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*/
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package akka.persistence.journal.japi;
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import scala.concurrent.Future;
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import akka.japi.Procedure;
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import akka.persistence.PersistentImpl;
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interface AsyncReplayPlugin {
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//#async-replay-plugin-api
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/**
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* Plugin Java API.
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*
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* Asynchronously replays persistent messages. Implementations replay a message
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* by calling `replayCallback`. The returned future must be completed when all
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* messages (matching the sequence number bounds) have been replayed. The future
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* `Long` value must be the highest stored sequence number in the journal for the
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* specified processor. The future must be completed with a failure if any of
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* the persistent messages could not be replayed.
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*
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* The `replayCallback` must also be called with messages that have been marked
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* as deleted. In this case a replayed message's `deleted` field must be set to
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* `true`.
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*
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* The channel ids of delivery confirmations that are available for a replayed
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* message must be contained in that message's `confirms` sequence.
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*
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* @param processorId processor id.
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* @param fromSequenceNr sequence number where replay should start.
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* @param toSequenceNr sequence number where replay should end (inclusive).
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* @param replayCallback called to replay a single message. Can be called from any
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* thread.
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*/
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Future<Long> doReplayAsync(String processorId, long fromSequenceNr, long toSequenceNr, Procedure<PersistentImpl> replayCallback);
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//#async-replay-plugin-api
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}
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