pekko/akka-docs/java/code/docs/transactor/Counter.java

28 lines
670 B
Java

/**
* Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
*/
package docs.transactor;
//#class
import akka.transactor.*;
import scala.concurrent.stm.Ref;
import scala.concurrent.stm.japi.STM;
public class Counter extends UntypedTransactor {
Ref.View<Integer> count = STM.newRef(0);
public void atomically(Object message) {
if (message instanceof Increment) {
STM.increment(count, 1);
}
}
@Override public boolean normally(Object message) {
if ("GetCount".equals(message)) {
getSender().tell(count.get(), getSelf());
return true;
} else return false;
}
}
//#class