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!act,sam #3889 Adding Activator template FSM/become for Java with Lambda support

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* Dining Hakkers Activator template for FSM and become
* Cleaup of FSM event matchers to be more usable and consistent
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Björn Antonsson 2014-02-24 12:11:02 +01:00
parent 6af33381b3
commit 07e361c684
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<!-- <html> -->
<head>
<title>Akka FSM in Java with Lambdas</title>
</head>
<body>
<div>
<h2>Finite State Machine in Actors</h2>
<p>
This sample is an adaptation of
<a href="http://www.dalnefre.com/wp/2010/08/dining-philosophers-in-humus/" target="_blank">Dining Hakkers</a>.
It illustrates how state and behavior can be managed within
an Actor with two different approaches; using <code>become</code> and using
the <code>AbstractFSM</code> class.
</p>
</div>
<div>
<h2>Dining Hakkers with Become</h2>
<p>
Open <a href="#code/src/main/java/sample/become/DiningHakkersOnBecome.java" class="shortcut">DiningHakkersOnBecome.java</a>.
</p>
<p>
It illustrates how current behavior can be replaced with <code>context.become</code>.
Note that no <code>var</code> members are used, instead the state is encoded in the current
behavior and its parameters.
</p>
<p>
Go to the <a href="#run" class="shortcut">Run</a> tab, and start the application main class
<code>sample.become.DiningHakkersOnBecome</code>.
In the log output you can see the actions of the <code>Hakker</code> actors.
</p>
<p>
Read more about <code>become</code> in
<a href="http://doc.akka.io/docs/akka/2.3-SNAPSHOT/java/lambda-actors.html#Become_Unbecome" target="_blank">the documentation</a>.
</p>
</div>
<div>
<h2>Dining Hakkers with FSM</h2>
<p>
Open <a href="#code/src/main/java/sample/fsm/DiningHakkersOnFsm.java" class="shortcut">DiningHakkersOnFsm.java</a>.
</p>
<p>
It illustrates how the states and transitions can be defined with the <code>akka.actor.AbstractFSM</code> class.
</p>
<p>
Go to the <a href="#run" class="shortcut">Run</a> tab, and start the application main class
<code>sample.fsm.DiningHakkersOnFsm</code>.
In the log output you can see the actions of the <code>Hakker</code> actors.
</p>
<p>
Read more about <code>akka.actor.FSM</code> in
<a href="http://doc.akka.io/docs/akka/2.3-SNAPSHOT/java/lambda-fsm.html" target="_blank">the documentation</a>.
</p>
</div>
</body>
</html>