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remove references to persistent views (#23426)

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Sebastian Harko 2017-07-26 00:26:17 -07:00 • committed by Johan Andrén
parent 8eb19d394e
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1 changed files with 9 additions and 10 deletions
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19
akka-docs/src/main/paradox/scala/persistence.md
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@ -76,7 +76,7 @@ case of sender and receiver JVM crashes.
are journaled and which are received by the persistent actor without being journaled. Journal maintains `highestSequenceNr` that is increased on each message. are journaled and which are received by the persistent actor without being journaled. Journal maintains `highestSequenceNr` that is increased on each message.
The storage backend of a journal is pluggable. The persistence extension comes with a "leveldb" journal plugin, which writes to the local filesystem. The storage backend of a journal is pluggable. The persistence extension comes with a "leveldb" journal plugin, which writes to the local filesystem.
Replicated journals are available as [Community plugins](http://akka.io/community/). Replicated journals are available as [Community plugins](http://akka.io/community/).
* *Snapshot store*: A snapshot store persists snapshots of a persistent actor's or a view's internal state. Snapshots are * *Snapshot store*: A snapshot store persists snapshots of a persistent actor's internal state. Snapshots are
used for optimizing recovery times. The storage backend of a snapshot store is pluggable. used for optimizing recovery times. The storage backend of a snapshot store is pluggable.
The persistence extension comes with a "local" snapshot storage plugin, which writes to the local filesystem. The persistence extension comes with a "local" snapshot storage plugin, which writes to the local filesystem.
* *Event sourcing*. Based on the building blocks described above, Akka persistence provides abstractions for the * *Event sourcing*. Based on the building blocks described above, Akka persistence provides abstractions for the
@ -638,8 +638,7 @@ akka.persistence.journal.leveldb.replay-filter {
<a id="snapshots"></a> <a id="snapshots"></a>
## Snapshots ## Snapshots
Snapshots can dramatically reduce recovery times of persistent actors and views. The following discusses snapshots Snapshots can dramatically reduce recovery times of persistent actors.
in context of persistent actors but this is also applicable to persistent views.
Persistent actors can save snapshots of internal state by calling the `saveSnapshot` method. If saving of a snapshot Persistent actors can save snapshots of internal state by calling the `saveSnapshot` method. If saving of a snapshot
succeeds, the persistent actor receives a `SaveSnapshotSuccess` message, otherwise a `SaveSnapshotFailure` message succeeds, the persistent actor receives a `SaveSnapshotSuccess` message, otherwise a `SaveSnapshotFailure` message
@ -998,10 +997,10 @@ Storage backends for journals and snapshot stores are pluggable in the Akka pers
A directory of persistence journal and snapshot store plugins is available at the Akka Community Projects page, see [Community plugins](http://akka.io/community/) A directory of persistence journal and snapshot store plugins is available at the Akka Community Projects page, see [Community plugins](http://akka.io/community/)
Plugins can be selected either by "default" for all persistent actors and views, Plugins can be selected either by "default" for all persistent actors,
or "individually", when a persistent actor or view defines its own set of plugins. or "individually", when a persistent actor defines its own set of plugins.
When a persistent actor or view does NOT override the `journalPluginId` and `snapshotPluginId` methods, When a persistent actor does NOT override the `journalPluginId` and `snapshotPluginId` methods,
the persistence extension will use the "default" journal and snapshot-store plugins configured in `reference.conf`: the persistence extension will use the "default" journal and snapshot-store plugins configured in `reference.conf`:
``` ```
@ -1361,12 +1360,12 @@ to the @ref:[reference configuration](general/configuration.md#config-akka-persi
## Multiple persistence plugin configurations ## Multiple persistence plugin configurations
By default, a persistent actor or view will use the "default" journal and snapshot store plugins By default, a persistent actor will use the "default" journal and snapshot store plugins
configured in the following sections of the `reference.conf` configuration resource: configured in the following sections of the `reference.conf` configuration resource:
@@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #default-config } @@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #default-config }
Note that in this case the actor or view overrides only the `persistenceId` method: Note that in this case the actor overrides only the `persistenceId` method:
Scala Scala
: @@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #default-plugins } : @@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #default-plugins }
@ -1374,8 +1373,8 @@ Scala
Java Java
: @@snip [PersistenceMultiDocTest.java]($code$/java/jdocs/persistence/PersistenceMultiDocTest.java) { #default-plugins } : @@snip [PersistenceMultiDocTest.java]($code$/java/jdocs/persistence/PersistenceMultiDocTest.java) { #default-plugins }
When the persistent actor or view overrides the `journalPluginId` and `snapshotPluginId` methods, When the persistent actor overrides the `journalPluginId` and `snapshotPluginId` methods,
the actor or view will be serviced by these specific persistence plugins instead of the defaults: the actor will be serviced by these specific persistence plugins instead of the defaults:
Scala Scala
: @@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #override-plugins } : @@snip [PersistenceMultiDocSpec.scala]($code$/scala/docs/persistence/PersistenceMultiDocSpec.scala) { #override-plugins }