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improve AbstractActor, #21717

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* Receive class that wraps PartialFunction, to avoid
  scary scala types
* move AbstractActorContext to AbstractActor.ActorContext
* converting docs, many, many UntypedActor
* removing UntypedActor docs
* add unit test for ReceiveBuilder
* MiMa filters
* consistent use of getContext(), self(), sender()
* rename cross references
* migration guide
* skip samples for now
* improve match type safetyi, add matchUnchecked
  * the `? extends P` caused code like this to compile:
    `match(String.class, (Integer i) -> {})`
  * added matchUnchecked, since it can still be useful (um, convenient)
    to be able to do:
    `matchUnchecked(List.class, (List<String> list) -> {})`
* eleminate some scala.Option
  * preRestart
  * findChild
  * ActorIdentity.getActorRef
This commit is contained in:
Patrik Nordwall 2016-12-13 10:59:29 +01:00
parent 3617fe8b41
commit 4bd6b7aab1
157 changed files with 3290 additions and 8882 deletions
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21
akka-docs/rst/java/code/docs/io/japi/Watcher.java
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@ -4,9 +4,9 @@ import java.util.concurrent.CountDownLatch;
import akka.actor.ActorRef;
import akka.actor.Terminated;
import akka.actor.UntypedActor;
import akka.actor.AbstractActor;
public class Watcher extends UntypedActor {
public class Watcher extends AbstractActor {
static public class Watch {
final ActorRef target;
@ -22,13 +22,16 @@ public class Watcher extends UntypedActor {
}
@Override
public void onReceive(Object msg) throws Exception {
if (msg instanceof Watch) {
getContext().watch(((Watch) msg).target);
} else if (msg instanceof Terminated) {
latch.countDown();
if (latch.getCount() == 0) getContext().stop(getSelf());
}
public Receive createReceive() {
return receiveBuilder()
.match(Watch.class, msg -> {
getContext().watch(msg.target);
})
.match(Terminated.class, msg -> {
latch.countDown();
if (latch.getCount() == 0) getContext().stop(self());
})
.build();
}
}