[rules-users] Migration guide

[Edson Tirelli]

  Yes, use the halt() method. The execution would re-start only if you were
re-using the working memory, what seems not to be the case.

2007/8/22, Krishnan <krishiyer at gmail.com>:
>
> 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
> > _______________________________________________
> > rules-users mailing list
> > rules-users at lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
>
> --
> 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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