Hi Guys,
I have implemented a persistent FSM in Java, wherein i am evaluating a
condition and post the validation of the same i decide to *stay* or *goTo*
another state. I am a version just before the 2.5.0, so i am not very sure
if the below mentioned issue is resolved or not.
The issue is that i am not able to evaluate a predicate with *matchEvent *but
the same works with *.event *construct. Below is a sample of the code.
when(State.A,
matchEvent(SomeEvent.class,
(someEvent, domainEvent) -> {
return ((some condition) ? false : true;
}, (someEvent, domainEvent) ->
{
\* do something here *\
return stay().
applying(someEvent).
andThen(\* do something here *\);
}).
event((SomeEvent.class,
((someEvent, domainEvent) -> {
return (((some condition) ? true : false;
}, (someEvent, domainEvent) ->
{
\* do something here *\
return goTo(State.B).
applying(someEvent).
andThen(\* do something here *\);
}));
As mentioned above, the above piece of code does not honor the *condition *when
coupled with *matchEvent*, but does work in case of *.event*.
when(State.A,
matchEvent(HackEventToLetFSMProcessPredicate.class,
(hackEventToLetFSMProcessPredicate, domainEvent) -> {
return ((some condition) ? false : true;
}, (hackEventToLetFSMProcessPredicate, domainEvent) ->
{
\* do something here *\
return stay().
applying(someEvent).
andThen(\* do something here *\);
}).
event((SomeEvent.class,
((someEvent, domain) -> {
return (((some condition) ? true : false;
}, (someEvent, domainEvent) ->
{
\* do something here *\
return stay().
applying(someEvent).
andThen(\* do something here *\);
}).
event((SomeEvent.class,
((someEvent, domainEvent) -> {
return (((some condition) ? true : false;
}, (stateA, someEvent) ->
{
\* do something here *\
return goTo(State.B).
applying(someEvent).
andThen(\* do something here *\);
}
));
Any help or update regarding this issue/bug is highly appreciated.
Regards,
Ankit
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