<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
On 27/08/2010 00:05, Michael Neale wrote:
<blockquote
cite="mid:AANLkTikzaWEUcF=1rjE3166rd_7kJPzkNOsqOOyvf058@mail.gmail.com"
type="cite">Hahaha - yes - that is what I was thinking.
<div><br>
</div>
<div>Dyanmic salience was added some time back - but its one of
those "did it and forgot about it" things. </div>
<div>Also - historically salience has been "abused" more than
"used" - so perhaps there is less excitement to talk about what
you can do with it. </div>
<div><br>
</div>
<div>But the case wolfgang mentioned is a good one - if you know
you need it you can probably safely use it. <br>
</div>
</blockquote>
<a class="moz-txt-link-freetext" href="http://blog.athico.com/2007/05/dynamic-salience-expressions.html">http://blog.athico.com/2007/05/dynamic-salience-expressions.html</a><br>
<blockquote
cite="mid:AANLkTikzaWEUcF=1rjE3166rd_7kJPzkNOsqOOyvf058@mail.gmail.com"
type="cite">
<div><br>
<div class="gmail_quote">On Thu, Aug 26, 2010 at 11:21 PM, Edson
Tirelli <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:tirelli@post.com">tirelli@post.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div> Wolfgang,</div>
<div><br>
</div>
<div> Not sure I understand what you mean, but Drools
supports dynamic salience:</div>
<div class="im">
<div><br>
</div>
<div>rule "fire in rank order 1,2,..."</div>
</div>
<div> salience( -$rank )<br>
when<br>
Element( $rank : rank,... )<br>
</div>
<div> ...</div>
<div>then</div>
<div> ...</div>
<div>end</div>
<div><br>
</div>
<div> Edson</div>
<div><br>
<br>
<div class="gmail_quote">2010/8/26 Wolfgang Laun <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:wolfgang.laun@gmail.com"
target="_blank">wolfgang.laun@gmail.com</a>></span>
<div>
<div class="h5"><br>
<blockquote class="gmail_quote" style="margin: 0pt
0pt 0pt 0.8ex; border-left: 1px solid rgb(204,
204, 204); padding-left: 1ex;">Just FYI, but who
knows ;-)<br>
<br>
Our proprietary vintage RBS has a feature is
(admittedly) rarely used<br>
but could come in handy, every now and then.<br>
<br>
Given this class<br>
<br>
class Element {<br>
int rank; // rank > 0<br>
}<br>
<br>
and to fire a rule in ascending rank order, you
can write (using<br>
modified Drools syntax)<br>
<br>
rule "fire in rank order 1,2,..."<br>
when<br>
Element( $rank : rank,... )<br>
// ...<br>
salience -$rank ### <=<br>
then<br>
// ...<br>
end<br>
<br>
The dynamically set salience does all the work.
(Of course, you can<br>
achieve the same order<br>
in Drools easily enough.)<br>
<br>
This is possible since salience is a value that
must be carried over<br>
into the activation.<br>
There is at least one other rule attribute that
shares this property,<br>
but I'm not sure<br>
whether anything useful can be done with dynamic
agenda groups.<br>
<br>
Cheers<br>
-W<br>
_______________________________________________<br>
rules-dev mailing list<br>
<a moz-do-not-send="true"
href="mailto:rules-dev@lists.jboss.org"
target="_blank">rules-dev@lists.jboss.org</a><br>
<a moz-do-not-send="true"
href="https://lists.jboss.org/mailman/listinfo/rules-dev"
target="_blank">https://lists.jboss.org/mailman/listinfo/rules-dev</a><br>
</blockquote>
</div>
</div>
</div>
<br>
<br clear="all">
<br>
-- <br>
Edson Tirelli<br>
JBoss Drools Core Development<br>
JBoss by Red Hat @ <a moz-do-not-send="true"
href="http://www.jboss.com" target="_blank">www.jboss.com</a><br>
</div>
<br>
_______________________________________________<br>
rules-dev mailing list<br>
<a moz-do-not-send="true"
href="mailto:rules-dev@lists.jboss.org">rules-dev@lists.jboss.org</a><br>
<a moz-do-not-send="true"
href="https://lists.jboss.org/mailman/listinfo/rules-dev"
target="_blank">https://lists.jboss.org/mailman/listinfo/rules-dev</a><br>
<br>
</blockquote>
</div>
<br>
<br clear="all">
<br>
-- <br>
Michael D Neale<br>
home: <a moz-do-not-send="true"
href="http://www.michaelneale.net">www.michaelneale.net</a><br>
blog: <a moz-do-not-send="true"
href="http://michaelneale.blogspot.com">michaelneale.blogspot.com</a><br>
</div>
<pre wrap="">
<fieldset class="mimeAttachmentHeader"></fieldset>
_______________________________________________
rules-dev mailing list
<a class="moz-txt-link-abbreviated" href="mailto:rules-dev@lists.jboss.org">rules-dev@lists.jboss.org</a>
<a class="moz-txt-link-freetext" href="https://lists.jboss.org/mailman/listinfo/rules-dev">https://lists.jboss.org/mailman/listinfo/rules-dev</a>
</pre>
</blockquote>
<br>
</body>
</html>