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<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Ok I think I get it.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>I think we can enhance
the proposed solution (My turn to share insight !)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>We can get rid of
inserting Deal in session since Score already has a reference on deal. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>It leads to a performance
gain since we insert less facts in session and avoid a join in rule (see
enhanced rules below).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Enhanced Rules :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>/* level 2 rules */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>rule "BR2 trader
and product" <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>salience 10<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>when<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s : Score( level ==
2, deal.trader=="Alex", deal.product == "GOOG")<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>then<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setCount(
$s.getCount() + 1 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setBook(
"B2" );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>end<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>rule "BR3 trader
and market" <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>salience 10<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>when<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s : Score( level ==
2, deal.trader=="Alex", deal.market == "NY")<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>then<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setCount(
$s.getCount() + 1 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setBook(
"B3" );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>end<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>/* level 1 rules : less
prioritary than level 2 */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>rule "BR1
trader" <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>salience 5<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>when<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s : Score( level ==
1, deal.trader=="Alex")<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>then<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setCount(
$s.getCount() + 1 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.setBook(
"B1" );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>End<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>---------<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>I also come to another way
of handing success and failure (I don’t know if it’s a better solution)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>We could change Score
to make it a Collector of Book by level, something like : <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>class Score{<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   Map<level, Book list>
booksByLevel // store list of target Book by level<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   Deal deal; <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Our rules need to be
modified, for example :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>rule "BR2 trader
and product" <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>salience 10<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>when<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s : Score(deal.trader=="Alex",
deal.product == "GOOG")<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>then<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s.addTargetBook(level2,
"B2" ); <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>end<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>new way of handling success/failure<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>rule "book
deal" salience 0<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>when<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>   $s : Score()<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>then<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>  if
$s.hasUniqueLevel2Book()  // LEVEL 2 handling<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     assign $s.deal to
$s.booksByLevel().get(level2).get(0);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     retract( $s );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>  else if
$s.hasUniqueLevel1Book()  // LEVEL 1 handling<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     assign $s.deal to
$s.booksByLevel().get(level1).get(0);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     retract( $s );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>  else <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     print("unable
to book deal" + $s.deal)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>     retract( $s );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>end<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>I like this solution
because :<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>- booking rules  (BR2)
are very simple<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>- success/failure is
done in one rule<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>- success/failure id
done without calling modify($s) which can lead to performance problem since
Drools reevaluate rules against modified fact<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Joel<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>De :</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b><span style='font-weight:bold'>De
la part de</span></b> Costigliola Joel (EXT)<br>
<b><span style='font-weight:bold'>Envoyé :</span></b> jeudi 29 octobre
2009 10:30<br>
<b><span style='font-weight:bold'>À :</span></b> '<st1:PersonName w:st="on">Rules
Users List</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Objet :</span></b> Re: [rules-users]
Specific Agenda strategy to control which rulesto fire</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<div>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span style='font-size:
10.0pt;font-family:Verdana;color:blue'>Hi Wolgang,<u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span style='font-size:
10.0pt;font-family:Verdana;color:blue'><u1:p> </u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Interesting advice ! <u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>I need to study it a
little bit to fully understand it and to see if it can meet my future
requirements.<u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><u1:p> </u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Thanks for taking the
time to share your insight,<u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Regards,<u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><u1:p> </u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'>Joel<u1:p></u1:p></span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=blue face=Verdana><span lang=EN-GB
style='font-size:10.0pt;font-family:Verdana;color:blue'><u1:p> </u1:p></span></font><o:p></o:p></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>De :</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
rules-users-bounces@lists.jboss.org
[mailto:rules-users-bounces@lists.jboss.org] <b><span style='font-weight:bold'>De
la part de</span></b> Wolfgang Laun<br>
<b><span style='font-weight:bold'>Envoyé :</span></b> jeudi 29 octobre
2009 08:09<br>
<b><span style='font-weight:bold'>À :</span></b> <st1:PersonName u2:st="on"><st1:PersonName
w:st="on">Rules Users List</st1:PersonName></st1:PersonName><br>
<b><span style='font-weight:bold'>Objet :</span></b> Re: [rules-users]
Specific Agenda strategy to control which rules to fire</span></font><u1:p></u1:p><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><u1:p> </u1:p><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>I don't think you should
consider an agenda strategy for this.<br>
<br>
Add a simple class:<br>
class Score{<br>
int level; int coun; Deal deal; Book book; <br>
Score( Deal deal, int level ){...} <br>
}<br>
<br>
and insert an instance along with the Deal to be classified:<br>
<br>
insert( deal );<br>
insert( new Score( deal ) );<br>
<br>
Rules for level 2 would be written according to:<br>
<br>
rule "trader and product"<br>
salience 10<br>
when<br>
</span></font><font size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;
font-family:Verdana'> $s : Score( level == 2, $d : deal )<br>
</span></font> Deal( this == $d, <font size=2 face=Verdana><span
lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>trader=="Alex",
product == "GOOG" )<br>
then<br>
$s.setCount( $s.getCount() + 1 );<br>
$s.setBook( "B2" );<br>
end<br>
<br>
Then you'll need a couple of rules handling success and failure:<br>
<br>
rule "post level success"<br>
salience 5<br>
when<br>
$s : Score( $l : level, count == 1, $d : deal, $b : book )<br>
then<br>
assign $d to $b, retract $d<br>
retract( $s );<br>
end <br>
</span></font><br>
<font size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:
Verdana'>rule "post level failure"<br>
salience 5<br>
when<br>
$s : Score( $l : level, count != 1 )<br>
then<br>
modify( $s ){<br>
setLevel( $l - 1 );<br>
}<br>
end </span></font><br>
<br>
Rules for level 1 would also be at salience 10.<br>
<br>
A rule for level == 0 should catch Deals "gone down" through all
levels.<br>
<br>
-W<br>
<br>
<br>
<br>
<o:p></o:p></p>
<u1:p></u1:p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2009/10/28 Costigliola Joel (EXT) <<a
href="mailto:joel.costigliola-ext@natixis.com">joel.costigliola-ext@natixis.com</a>><u1:p></u1:p><o:p></o:p></span></font></p>
<div link=blue vlink=purple>
<div>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Hello
all,</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>I
need some help to to set a specific Agenda strategy in order to control finely
which activated rules will be fired.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Problem
context :</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-----------------</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>My
company is a bank where traders are making deals on markets, these deals must
be classified in book, this is what we call “booking process”.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Booking
is done according to booking criteria : which trader has made the deal ? on
which product ? wich market ? etc … </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>A
booking rule defines a set of criteria and the target book where the deal will
classified, it also has a priority, note that it is ok that two booking rule
have same priority. </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>I
want to implement booking rule as Drools rule.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Several
booking rule can be applied to a deal, in that case choosing the right booking
rule to fire depends on the following algorithm : </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
look all the activated booking rule of the highest priority, </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>---
if there is a unique rule apply it</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>---
if there is no unique rule (0 rule or more than one), look at rules of a lesser
priority and apply the same logic.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Next
section is an example that will clear things (I hope).</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Example
:</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>---------</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>A
deal D1 has been done by Alex on NY market to buy Google stocks.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>We
have 3 booking rules : </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
BR1 : criteria = trader=Alex / book = B1</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
BR2 : criteria = trader=Alex and product = google stock / book = B2</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>As
BR2 is more precise than BR1, il will matches the deal and book it in B1</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>If
the deal was on another product, BR1 would have been applied.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Things
gets more complicated when 2 rules of same priority can be applied. </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Let's
imagine we add the following booking rule </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
BR3 : criteria = trader=Alex and market = NY / book = B3</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>We
have a problem to book D1 since BR2 and BR3 can be applied but have same
priority. </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>We
can't choose one over the other thus we must apply a less precise/prioritary
rule (if unique at its own precision level).</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>In
my example, that would lead to apply BR1.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Question
:</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>----------</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>If
I define BR1,BR2,BR3 as Drools rules, how can I tell Drools : </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
to execute a rule only if there is no other active rule with same precision that
could be applied ?</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>-
to look for a unique matching rule with less precision level ?</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>I
think it's the Agenda responsibility to take this decision, but I don't know
how implement that.</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Can
you give some advices on that ?</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span lang=EN-GB style='font-size:10.0pt;font-family:Verdana'>Thanks
for your lights in advance,</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>Regards,</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>Joel</span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'> </span></font><u1:p></u1:p><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <u1:p></u1:p><o:p></o:p></span></font></p>
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