[rules-users] How can I use retract in action or exception handler?

[EugeneP]

Thanks, it helps.
But there are some more questions.
1. What is an official name of rule language, if it is not MVEL? Why "MVEL
dialect" in split constraints allow using code like:
        $p: Person ( age > 21 )
2. Why it is not possible to use rules in actions in MVEL mode? I suppose it
would be useful.
3. How can I create new object in the constraint? For example, I have a
constraint:

$p : Person( age < 21 )

- in this branch I need to create the new object "PersonFault" and insert it
to the working memory, but the code :

$p : Person( age < 21 )
$fault = new PersonFault($p, "WRONG AGE");
kcontext.getKnowledgeRuntime().insert($fault);

- is not working. Nor in the constraint, nor in the action...


Regards,
    EugeneP

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