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<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2>Hi Wolfgang,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2>I'm interested with your reply and am trying to better
understand it (although the use-case has nothing to do with what I
do!)</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2>The Score class has a constructor taking Deal and level
(assume to be akin to "priority" in the original post); however your example
Fact insertions exclude level for the Score Fact. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=236335908-29102009></SPAN><FONT
face=Arial><FONT color=#0000ff><FONT size=2>I<SPAN class=236335908-29102009>
assume Score's level should be initially set to the highest (most granular)
level; e.g. 2 in the example cited (ranging from
0-2)?</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009>It's good to see and understand other's
approaches.</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009>Cheers,</SPAN></FONT></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009></SPAN></FONT></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT color=#0000ff><FONT size=2><SPAN
class=236335908-29102009>Mike</SPAN></FONT></FONT></FONT></DIV>
<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>Wolfgang
Laun<BR><B>Sent:</B> 29 October 2009 07:09<BR><B>To:</B> Rules Users
List<BR><B>Subject:</B> Re: [rules-users] Specific Agenda strategy to control
which rulesto fire<BR></FONT><BR></DIV>
<DIV></DIV>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><FONT face=Verdana size=2><SPAN
lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"> $s :
Score( level == 2, $d : deal )<BR></SPAN></FONT> Deal( this
== $d, <FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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
face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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>
<DIV class=gmail_quote>2009/10/28 Costigliola Joel (EXT) <SPAN dir=ltr><<A
href="mailto:joel.costigliola-ext@natixis.com">joel.costigliola-ext@natixis.com</A>></SPAN><BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">
<DIV lang=FR vlink="purple" link="blue">
<DIV>
<DIV>
<DIV>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Hello all,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Problem context
:</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">-----------------</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Booking is done according to
booking criteria : which trader has made the deal ? on which product ? wich
market ? etc … </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">I want to implement booking
rule as Drools rule.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- look all the activated
booking rule of the highest priority, </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">--- if there is a unique rule
apply it</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Next section is an example
that will clear things (I hope).</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Example :</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">---------</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">A deal D1 has been done by
Alex on NY market to buy Google stocks.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">We have 3 booking rules :
</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- BR1 : criteria = trader=Alex
/ book = B1</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- BR2 : criteria = trader=Alex
and product = google stock / book = B2</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">As BR2 is more precise than
BR1, il will matches the deal and book it in B1</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">If the deal was on another
product, BR1 would have been applied.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Things gets more complicated
when 2 rules of same priority can be applied. </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Let's imagine we add the
following booking rule </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- BR3 : criteria = trader=Alex
and market = NY / book = B3</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">We have a problem to book D1
since BR2 and BR3 can be applied but have same priority. </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">In my example, that would lead
to apply BR1.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Question :</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">----------</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">If I define BR1,BR2,BR3 as
Drools rules, how can I tell Drools : </SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- to execute a rule only if
there is no other active rule with same precision that could be applied
?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">- to look for a unique
matching rule with less precision level ?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">I think it's the Agenda
responsibility to take this decision, but I don't know how implement
that.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Can you give some advices on
that ?</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN lang=EN-GB
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Thanks for your lights in
advance,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Regards,</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Joel</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV></DIV>
<DIV></DIV>
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