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Update Persistence Snapshot documentation (#22419)

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* Update Persistence Snapshot documentation (#22233)

* Use copy of ExampleState as it is mutable
This commit is contained in:
Richard Imaoka 2017-03-14 21:30:32 +09:00 • committed by Patrik Nordwall
parent e77c3c3e8a
commit ea9617aa25
4 changed files with 31 additions and 16 deletions
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10
akka-docs/rst/scala/code/docs/persistence/PersistenceDocSpec.scala
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@ -159,13 +159,21 @@ object PersistenceDocSpec {
class MyPersistentActor extends PersistentActor {
override def persistenceId = "my-stable-persistence-id"
def updateState(event: String): Unit = {}
//#save-snapshot
var state: Any = _
val snapShotInterval = 1000
override def receiveCommand: Receive = {
case "snap" => saveSnapshot(state)
case SaveSnapshotSuccess(metadata) => // ...
case SaveSnapshotFailure(metadata, reason) => // ...
case cmd: String =>
persist(s"evt-$cmd") { e =>
updateState(e)
if (lastSequenceNr % snapShotInterval == 0 && lastSequenceNr != 0)
saveSnapshot(state)
}
}
//#save-snapshot