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<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>Hi Smitha,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>The "when" part of rules causes activations to be created
on an agenda <STRONG>at the time the facts are
asserted</STRONG>.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>When a call to fireAllRules() is made, activations on the
agenda are fired (the "then" part of the rule). The order in which the
activations are executed is governed by "conflict resolution"
strategies.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>If you want the "then" part of your rules to fire in a
certain sequence look at "salience" (the simplest form), or Agenda Groups and
RuleFlow (in increasing levels of complexity).</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>Good luck - JBoss Rules (or whatever new name it might be
given - Mark?) is an excellent product that I am sure you will enjoy
using.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>With kind regards,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2>Mike</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=388515515-05072007><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <B>On Behalf Of </B>Smitha
Bhat<BR><B>Sent:</B> 05 July 2007 16:43<BR><B>To:</B>
rules-users@lists.jboss.org<BR><B>Subject:</B> [rules-users] order of rules
firing<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV>Hi,</DIV>
<DIV>I am new to JBoss rules.</DIV>
<DIV>My drl file is not resulting in the functionality that I am expecting.
</DIV>
<DIV>I know that I shouldn't be counting on the rules firing in a particular
order, but I find that as I debug my code, the 'when' of the 3 rules are
evaluated first, and then the 'then's. For eg. the SetWatch gets called after
DistanceKm(Rule1), DistanceKm(Rule2) and CountWatching(rule3) are called.
I expected SetWatch to get called after DistanceKm of Rule2 got called i.e. I
expected the 'when' and the 'then' to get evaluated sequentially. Is my
understanding wrong? I tried setting the salience of the 3 rules, but I get
the same behaviour. Is there something else I need to do, to get the
functionality I need?</DIV>
<DIV> </DIV>
<DIV>Thanks</DIV>
<DIV> </DIV>
<DIV>The 3 rules in my drl as given below.</DIV>
<DIV> </DIV><FONT size=2>
<DIV>rule "Rule1"</DIV>
<DIV>when</DIV>
<DIV>$GeoPosition1 : GeoPosition()</DIV>
<DIV>$GeoPosition2 : GeoPosition()</DIV>
<DIV>eval(util.StringEqual($GeoPosition1.getType(), "PRPT")) </DIV>
<DIV>eval(util.StringEqual($GeoPosition2.getType(), "SI")) </DIV>
<DIV>eval(util.DistanceKm($GeoPosition1, $GeoPosition2) > 100.0) </DIV>
<DIV>eval(util.Watching($GeoPosition1, $GeoPosition2))</DIV>
<DIV>then</DIV>
<DIV></DIV>
<DIV>util.ClearWatch($GeoPosition1, $GeoPosition2);</DIV>
<DIV>end</DIV>
<DIV> </DIV>
<DIV>rule "Rule2"</DIV>
<DIV>when</DIV>
<DIV>$GeoPosition1 : GeoPosition()</DIV>
<DIV>$GeoPosition2 : GeoPosition()</DIV>
<DIV>eval(util.StringEqual($GeoPosition1.getType(), "PRPT")) </DIV>
<DIV>eval(util.StringEqual($GeoPosition2.getType(), "SI")) </DIV>
<DIV>eval(util.DistanceKm($GeoPosition1, $GeoPosition2) <= 100.0) </DIV>
<DIV>eval(! util.Watching($GeoPosition1, $GeoPosition2))</DIV>
<DIV>then</DIV>
<DIV></DIV>
<DIV>util.SetWatch($GeoPosition1, $GeoPosition2);</DIV>
<DIV>end</DIV>
<DIV> </DIV>
<DIV>rule "Rule3"</DIV>
<DIV>when</DIV>
<DIV>$GeoPosition1 : GeoPosition()</DIV>
<DIV>eval(util.StringEqual($GeoPosition1.getType(), "PRPT")) </DIV>
<DIV>eval(util.CountWatching($GeoPosition1) >= 1)</DIV>
<DIV>then</DIV>
<DIV></DIV>
<DIV>util.SetThreat($GeoPosition1, 1.0);</DIV>
<DIV>util.SetColor($GeoPosition1, "red");</DIV>
<DIV>end</DIV></FONT>
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