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+doc #17337: Document composability and modularity

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Endre Sándor Varga 2015-07-09 17:22:18 +02:00 • committed by Martynas Mickevičius
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akka-docs-dev/rst/java/stream-customize.rst
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@ -330,11 +330,11 @@ All of the above custom stages (linear or graph) provide a few simple guarantees
- The state encapsulated by these classes can be safely modified from the provided callbacks, without any further
synchronization.
In essence, the above guarantees are similar to what :class:`Actor`s provide, if one thinks of the state of a custom
In essence, the above guarantees are similar to what :class:`Actor` s provide, if one thinks of the state of a custom
stage as state of an actor, and the callbacks as the ``receive`` block of the actor.
.. warning::
It is **not safe** to access the state of any custom stage outside of the callbacks that it provides, just like it
It is **not safe** to access the state of any custom stage outside of the callbacks that it provides, just like it
is unsafe to access the state of an actor from the outside. This means that Future callbacks should **not close over**
internal state of custom stages because such access can be concurrent with the provided callbacks, leading to undefined
behavior.