[rules-users] Migration guide

[Krishnan]

Hi Edson,

Thanks for your suggestions. The facts are produced as the rules are
executed. Once the "interesting" fact has been produced which
involves a rule to be executed, I am done but this does not mean the
production of facts is done. So, I used clearAgenda(). Also, I use a new
workingmemory for every new thread (multi-threaded environment). So, if I
use halt() is this equivalent to clearAgenda() ?.

>From my understanding, the execution starts again only if you use the same
working memory ?.

Thanks,
Krishnan.

On 8/22/07, Edson Tirelli <tirelli at post.com> wrote:
>
>
>    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
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
>
> --
>   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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>
>


-- 
Sivaramakrishna Iyer Krishnan (Anand)

Never assume the obvious is true.
- William Safire
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