73 lines
1.9 KiB
HTML
73 lines
1.9 KiB
HTML
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<head>
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<title>Akka FSM in Java with Lambdas</title>
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</head>
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<body>
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<div>
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<h2>Finite State Machine in Actors</h2>
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<p>
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This sample is an adaptation of
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<a href="http://www.dalnefre.com/wp/2010/08/dining-philosophers-in-humus/" target="_blank">Dining Hakkers</a>.
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It illustrates how state and behavior can be managed within
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an Actor with two different approaches; using <code>become</code> and using
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the <code>AbstractFSM</code> class.
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</p>
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</div>
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<div>
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<h2>Dining Hakkers with Become</h2>
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<p>
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Open <a href="#code/src/main/java/sample/become/DiningHakkersOnBecome.java" class="shortcut">DiningHakkersOnBecome.java</a>.
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</p>
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<p>
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It illustrates how current behavior can be replaced with <code>context.become</code>.
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Note that no <code>var</code> members are used, instead the state is encoded in the current
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behavior and its parameters.
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</p>
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<p>
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Go to the <a href="#run" class="shortcut">Run</a> tab, and start the application main class
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<code>sample.become.DiningHakkersOnBecome</code>.
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In the log output you can see the actions of the <code>Hakker</code> actors.
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</p>
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<p>
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Read more about <code>become</code> in
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<a href="http://doc.akka.io/docs/akka/2.4-SNAPSHOT/java/lambda-actors.html#Become_Unbecome" target="_blank">the documentation</a>.
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</p>
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</div>
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<div>
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<h2>Dining Hakkers with FSM</h2>
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<p>
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Open <a href="#code/src/main/java/sample/fsm/DiningHakkersOnFsm.java" class="shortcut">DiningHakkersOnFsm.java</a>.
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</p>
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<p>
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It illustrates how the states and transitions can be defined with the <code>akka.actor.AbstractFSM</code> class.
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</p>
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<p>
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Go to the <a href="#run" class="shortcut">Run</a> tab, and start the application main class
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<code>sample.fsm.DiningHakkersOnFsm</code>.
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In the log output you can see the actions of the <code>Hakker</code> actors.
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</p>
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<p>
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Read more about <code>akka.actor.FSM</code> in
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<a href="http://doc.akka.io/docs/akka/2.4-SNAPSHOT/java/lambda-fsm.html" target="_blank">the documentation</a>.
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</p>
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</div>
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</body>
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</html>
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