Interface DataPersistenceProvider
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- All Known Implementing Classes:
DelegatingPersistentDataProvider
,NonPersistentDataProvider
,PersistentDataProvider
public interface DataPersistenceProvider
DataPersistenceProvider provides methods to persist data and is an abstraction of the akka-persistence persistence API.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
deleteMessages(long sequenceNumber)
Deletes journal entries up to the given sequence number.void
deleteSnapshots(akka.persistence.SnapshotSelectionCriteria criteria)
Deletes snapshots based on the given criteria.long
getLastSequenceNumber()
Returns the last sequence number contained in the journal.boolean
isRecoveryApplicable()
Returns whether or not persistence recovery is applicable/enabled.<T> void
persist(T entry, akka.japi.Procedure<T> procedure)
Persists an entry to the applicable journal synchronously.<T> void
persistAsync(T entry, akka.japi.Procedure<T> procedure)
Persists an entry to the applicable journal asynchronously.void
saveSnapshot(Object snapshot)
Saves a snapshot.
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Method Detail
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isRecoveryApplicable
boolean isRecoveryApplicable()
Returns whether or not persistence recovery is applicable/enabled.- Returns:
- true if recovery is applicable, otherwise false, in which case the provider is not persistent and may not have anything to be recovered
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persist
<T> void persist(T entry, akka.japi.Procedure<T> procedure)
Persists an entry to the applicable journal synchronously.- Type Parameters:
T
- the type of the journal entry- Parameters:
entry
- the journal entry to persistprocedure
- the callback when persistence is complete
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persistAsync
<T> void persistAsync(T entry, akka.japi.Procedure<T> procedure)
Persists an entry to the applicable journal asynchronously.- Type Parameters:
T
- the type of the journal entry- Parameters:
entry
- the journal entry to persistprocedure
- the callback when persistence is complete
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saveSnapshot
void saveSnapshot(Object snapshot)
Saves a snapshot.- Parameters:
snapshot
- the snapshot object to save
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deleteSnapshots
void deleteSnapshots(akka.persistence.SnapshotSelectionCriteria criteria)
Deletes snapshots based on the given criteria.- Parameters:
criteria
- the search criteria
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deleteMessages
void deleteMessages(long sequenceNumber)
Deletes journal entries up to the given sequence number.- Parameters:
sequenceNumber
- the sequence number
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getLastSequenceNumber
long getLastSequenceNumber()
Returns the last sequence number contained in the journal.- Returns:
- the last sequence number
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