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Clarifying actor jmm rules

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viktorklang 2012-04-18 12:46:58 +03:00
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akka-docs/general/jmm.rst
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@ -43,6 +43,12 @@ To prevent visibility and reordering problems on actors, Akka guarantees the fol
* **The actor send rule:** the send of the message to an actor happens before the receive of that message by the same actor.
* **The actor subsequent processing rule:** processing of one message happens before processing of the next message by the same actor.
.. note::
In layman's terms this means that changes to internal fields of the actor is visible when the next message
is processed by that actor. So fields in your actor does not need to be volatile or equivalent.
Both rules only apply for the same actor instance and are not valid if different actors are used.
Futures and the Java Memory Model