From FMahalakshmi at nyx.com Wed Jun  9 13:48:06 2010
Content-Type: multipart/mixed; boundary="===============7021713429159122397=="
MIME-Version: 1.0
From: Fnu Mahalakshmi <FMahalakshmi at nyx.com>
To: rules-users at lists.jboss.org
Subject: [rules-users] error with firing of rules and chainig rules
Date: Wed, 09 Jun 2010 13:47:54 -0400
Message-ID: <994758E35590274E955FA75763C5AA5002D010B0@MTEXMBXP01.ad.NYX.com>

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Hi,

If you have multiple rules where its important that rule 1 be fired on the =
data first and then rule 2 how can we do this without specifying the salien=
ce factor?
I do not want my rules to be dependant on each other as the data I am passi=
ng  differs from each other.
Ex:
Room{
Name, Id,
Status,
}
Fire{
Room,
FireType}

Sprinkler{
Room,
SprinklerType
status}


I pass all data above into my working memory.
I have rules:
Rule 1: "if fire exists update room status to 'fire'"
Rule 2: "if room has status 'fire' update sprinkler status to 'room number'"

Now when I pass my javabean objects: if theobject of type sprinkler gets pr=
ocessed first it will never get the room number even if actually the room h=
as status 'fire'

If I specify salience feature then It will never work for my sprinkler obje=
cts and always be multichained.
I don't want chaining between my rules.

Any suggestions???
Thank you
M
</pre>

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From mottagio at gmail.com Thu Jun 10 04:06:11 2010
Content-Type: multipart/mixed; boundary="===============7017295703270500587=="
MIME-Version: 1.0
From: Giovanni Motta <mottagio at gmail.com>
To: rules-users at lists.jboss.org
Subject: Re: [rules-users] error with firing of rules and chainig rules
Date: Thu, 10 Jun 2010 09:59:27 +0200
Message-ID: <AANLkTikzwm0qpIv6qDe4koF5NxxFezF3z7op4AIN7yGv@mail.gmail.com>
In-Reply-To: 994758E35590274E955FA75763C5AA5002D010B0@MTEXMBXP01.ad.NYX.com

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Content-Transfer-Encoding: quoted-printable

When you update your objects, do you notify the session of the change?
If you do that, you should not take care of salience. The objects insertion
order is not relevant (or, at least, marginally).
To notify the session of an object change, you should either put your
modifications inside a 'modify' block (see the docs) or let your java beans
include a 'PropertyChangeSupport' field (see dynamic facts).
In your sample, when the room gets the 'fire' status, the session should be
notified of the change, and the sprinkler rule will fire.

Regards

2010/6/9 Fnu Mahalakshmi <FMahalakshmi(a)nyx.com>

>  Hi,
>
>
>
> If you have multiple rules where its important that rule 1 be fired on the
> data first and then rule 2 how can we do this without specifying the
> salience factor?
>
> I do not want my rules to be dependant on each other as the data I am
> passing  differs from each other.
>
> Ex:
>
> Room{
>
> Name, Id,
>
> Status,
>
> }
>
> Fire{
>
> Room,
>
> FireType}
>
>
>
> Sprinkler{
>
> Room,
>
> SprinklerType
>
> status}
>
>
>
>
>
> I pass all data above into my working memory.
>
> I have rules:
>
> Rule 1: =E2=80=9Cif fire exists update room status to =E2=80=98fire=E2=80=
=99=E2=80=9D
>
> Rule 2: =E2=80=9Cif room has status =E2=80=98fire=E2=80=99 update sprinkl=
er status to =E2=80=98room
> number=E2=80=99=E2=80=9D
>
>
>
> Now when I pass my javabean objects: if theobject of type sprinkler gets
> processed first it will never get the room number even if actually the ro=
om
> has status =E2=80=98fire=E2=80=99
>
>
>
> If I specify salience feature then It will never work for my sprinkler
> objects and always be multichained.
>
> I don=E2=80=99t want chaining between my rules.
>
>
>
> Any suggestions???
>
> Thank you
>
> M
>
> ------------------------------
>
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>
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> *************************************************************************=
****
>
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>
>
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