Dear Experts,
Reference : http://doc.akka.io/docs/akka/snapshot/java/lambda-fsm.html
I could see different flavors of "matchevent" .
I confused a bit in handling the state data .How state data is accessed
from actions ( Lambdas) is not very clear .
It will be great if you could help in understanding the *association of
variable data ( in the lambda ) with actual state data .*
In some cases it is very clear where one is passing data explicitly (
*Type-2* in the below code snippets ) . But in *Type-1* and *Type -3 *are
we taking state data from the actor ?
1. *Type -1 *
2. when(Error, matchEventEquals("stop", (event, data) -> {
3. // do cleanup ...
4. return stop();
5. }));
6. *Type -2 *
7. matchEvent(SetTarget.class, Uninitialized.class,
8. (setTarget, uninitialized) ->
9. stay().using(new Todo(setTarget.getRef(), new LinkedList<>()))));
10. *Type -3*
11. matchEvent(X.class, (x, data) -> {
12. log().info("Received unhandled event: " + x);
13. return stay();
regards
Mahesh
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