[rules-users] Migration guide

[Edson Tirelli]

   Krishnan

   clearAgenda() was not a safe method of doing that. The safe way to stop
the rules firing for the engine is calling the halt() method:

drools.halt();

   Although, it is important to note that halt() will only stop the rules
firing but will NOT clear the agenda. i.e., if you call fireAllRules()
again, the engine will continue executing from the point it stopped when
halt() was called.
    If you think you know what your are doing and really wants to clear the
agenda, you can still do:

drools.getWorkingMemory().clearAgenda();

    But again, this is not something that should be used inside rules.

    []s
    Edson


2007/8/22, Krishnan <krishiyer at gmail.com>:
>
>
> Hi all,
>
> Is there a migration guide from 4.0 MR2 to 4.0 GA ?. I had got the code
> working in 4.0 MR2 and thought it would be
> as easy as just changing the jars. But it is not. Many things have
> changed.
>
> (a) I modified the assert() into insert()
>
> Is there anything else I should know about ?
>
> One of my failure is for the method clearAgenda() is undefined for the
> type KnowledgeHelper.
>
> Previously, in the rules file (.drl), once a rule has executed and I know
> I am done, I would call drools.clearAgenda() to
> expedite the processing, this does not work anymore. Has the functionality
> changed ?
>
> Any help will be appreciated ?.
>
> thanks,
> Krishnan.
>
>
> --
> Sivaramakrishna Iyer Krishnan (Anand)
>
> Never assume the obvious is true.
> - William Safire
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>


-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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