class SpannerObjectStore extends AnyRef
This API would eventually evolve into the akka-persistence object API
INTERNAL API
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- new SpannerObjectStore(interactions: SpannerObjectInteractions)
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- def changes(entityType: String, offset: Offset): Source[Change, NotUsed]
Get a source of the most recent changes made to objects of the given entity type since the passed in offset.
Get a source of the most recent changes made to objects of the given entity type since the passed in offset.
The returned source will never terminate, it effectively watches for changes to the objects and emits changes as they happen.
Not all changes that occur are guaranteed to be emitted, this call only guarantees that eventually, the most recent change for each object since the offset will be emitted. In particular, multiple updates to a given object in quick succession are likely to be skipped, with only the last update resulting in a change event from this source.
- entityType
The type of entity to get changes for.
- offset
The offset to get changes since. Must either be akka.persistence.query.NoOffset to get changes since the beginning of time, or an offset that has been previously returned by this query. Any other offsets are invalid.
- returns
A source of change events.
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- def currentChanges(entityType: String, offset: Offset): Source[Change, NotUsed]
Get a source of the most recent changes made to objects of the given entity type since the passed in offset.
Get a source of the most recent changes made to objects of the given entity type since the passed in offset.
Note that this only returns the most recent change to each object, if an object has been updated multiple times since the offset, only the most recent of those changes will be part of the stream.
This will return changes that occurred up to when the
Source
returned by this call is materialized. Changes to objects made since materialization are not guaranteed to be included in the results.- entityType
The type of entity to get changes for.
- offset
The offset to get changes since. Must either be akka.persistence.query.NoOffset to get changes since the beginning of time, or an offset that has been previously returned by this query. Any other offsets are invalid.
- returns
A source of change events.
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- def deleteObject(persistenceId: PersistenceId): Future[Unit]
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- def upsertObject(entityType: String, persistenceId: PersistenceId, serId: Long, serManifest: String, value: ByteString, seqNr: Long): Future[Unit]
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sequence number for optimistic locking. starts at 1.
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