A PersistentView works the same way as View did previously, except:
* it requires an `peristenceId` (no default is provided)
* messages given to `receive` are NOT wrapped in Persistent()
akka-streams not touched, will update them afterwards on different branch
Also solves #15436 by making persistentId in PersistentView abstract.
(cherry picked from commit dcafaf788236fe6d018388dd55d5bf9650ded696)
Conflicts:
akka-docs/rst/java/lambda-persistence.rst
akka-docs/rst/java/persistence.rst
akka-docs/rst/scala/persistence.rst
akka-persistence/src/main/scala/akka/persistence/Persistent.scala
akka-persistence/src/main/scala/akka/persistence/View.scala
Breaks binary compatibility because adding new methods to Eventsourced
trait. Since akka-persistence is experimental this is ok, yet
source-level compatibility has been perserved thankfuly :-)
Deprecates:
* Rename of EventsourcedProcessor -> PersistentActor
* Processor -> suggest using PersistentActor
* Migration guide for akka-persistence is separate, as wel'll deprecate in minor versions (its experimental)
* Persistent as well as ConfirmablePersistent - since Processor, their
main user will be removed soon.
Other changes:
* persistAsync works as expected when mixed with persist
* A counter must be kept for pending stashing invocations
* Uses only 1 shared list buffer for persit / persistAsync
* Includes small benchmark
* Docs also include info about not using Persistent() wrapper
* uses java LinkedList, for best performance of append / head on
persistInvocations; the get(0) is safe, because these msgs only
come in response to persistInvocations
* Renamed internal *MessagesSuccess/Failure messages because we kept
small mistakes seeing the class "with s" and "without s" as the same
* Updated everything that refered to EventsourcedProcessor to
PersistentActor, including samples
Refs #15227
Conflicts:
akka-docs/rst/project/migration-guides.rst
akka-persistence/src/main/scala/akka/persistence/JournalProtocol.scala
akka-persistence/src/main/scala/akka/persistence/Persistent.scala
akka-persistence/src/test/scala/akka/persistence/PersistentActorSpec.scala
project/AkkaBuild.scala
