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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Correct. But does it then internally build
the DRL into binary/compiled format and then uses it for updating knowledge
base ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</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'>On
Behalf Of </span></b>Wolfgang Laun<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday<st1:PersonName
w:st="on">,</st1:PersonName> May 19<st1:PersonName w:st="on">,</st1:PersonName>
2011 11:59 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Rules
Users List</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] Drools
and threads</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>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>You can feed a
KnowledgeBuilder with a number of data formats<st1:PersonName w:st="on">,</st1:PersonName>
DRL being just one of them. The full standard procedurefor building is to add
one or more resources to the builder (indicating its type)<st1:PersonName
w:st="on">,</st1:PersonName> check for errors and create a KnowledgeBase; then
proceed with a session<st1:PersonName w:st="on">,</st1:PersonName> etc. <br>
<br>
-W<br>
<br>
<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2011/5/19 Abhay B. Chaware <<a
href="mailto:Abhay.Chaware@kpitcummins.com">Abhay.Chaware@kpitcummins.com</a>><o:p></o:p></span></font></p>
<div link=blue vlink=blue>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Little confused about the third question I had<st1:PersonName
w:st="on">,</st1:PersonName> about rules compilation. I now know that rules are
to be compiled. When I use Guvnor<st1:PersonName w:st="on">,</st1:PersonName>
I have to package the rules ( this is where they are compiled into binary
format ) and download the package file and feed it into the production
memory / knowledge base using changesets/agents. </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>But I have also seen examples of drools and also created a few ones
where I build the eclipse project and package the entire app as webapp ( .war )
and the rules file is in the classes/lib directory as a .drl file. ( uncompiled
). And it still works ! Does the drools runtime compile it at
runtime ? and then uses it or what ? </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Regards<st1:PersonName w:st="on">,</st1:PersonName></span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:11.0pt;font-family:Arial;
color:navy'> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Abhay Chaware</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=1 color=navy face=Arial><span style='font-size:7.5pt;font-family:Arial;
color:navy'>Sr. Designer | KPIT Cummins Infosystems Ltd | Board: +91 020 6652
5000 | Extn: 2989 | <a href="mailto:abhay.chaware@kpitcummins.com"
target="_blank">abhay.chaware@kpitcummins.com</a> |<a
href="http://www.kpitcummins.com" target="_blank">www.kpitcummins.com</a> </span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=5 color=green face=Webdings><span style='font-size:18.0pt;font-family:
Webdings;color:green'>P</span></font><font size=2 color=black face=Webdings><span
style='font-size:11.0pt;font-family:Webdings;color:black'> </span></font><font
size=1 color=green face=Tahoma><span style='font-size:7.5pt;font-family:Tahoma;
color:green'>Please consider the environment before printing this e-mail</span></font><o:p></o:p></p>
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<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;font-weight:
bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:
10.0pt;font-family:Tahoma'> <a href="mailto:rules-users-bounces@lists.jboss.org"
target="_blank">rules-users-bounces@lists.jboss.org</a> [mailto:<a
href="mailto:rules-users-bounces@lists.jboss.org" target="_blank">rules-users-bounces@lists.jboss.org</a>]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Wolfgang Laun<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday<st1:PersonName
w:st="on">,</st1:PersonName> May 17<st1:PersonName w:st="on">,</st1:PersonName>
2011 3:31 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Rules
Users List</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] Drools
and threads</span></font><o:p></o:p></p>
</div>
<div>
<div>
<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'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><font
size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<div>
<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'>2011/5/17 Abhay B.
Chaware <<a href="mailto:Abhay.Chaware@kpitcummins.com" target="_blank">Abhay.Chaware@kpitcummins.com</a>><o:p></o:p></span></font></p>
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<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Hi</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I have few
questions about Drools.</span></font><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Are rules
compiled<st1:PersonName w:st="on">,</st1:PersonName> partially compiled or
interpreted ?</span></font><o:p></o:p></p>
</div>
</div>
<div>
<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'><br>
Rules are indeed compiled<st1:PersonName w:st="on">,</st1:PersonName> but any
system where the order of execution<br>
is so highly dynamic has to do some operation in an interpretative mode.<br>
<br>
<o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt;
border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204, 204, 204)'>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>When I call
fireAllRules()<st1:PersonName w:st="on">,</st1:PersonName> does it ( or can it
) create a new thread that runs parallely or the operation is sequential and
the caller program HAS TO wait till all rules execution is done ?</span></font><o:p></o:p></p>
</div>
</div>
</blockquote>
<div>
<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'><br>
No special thread is created. fireAllRules() returns when no more rule
activations are to be "fired".<br>
<o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt;
border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204, 204, 204)'>
<div link=blue vlink=purple>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Also<st1:PersonName
w:st="on">,</st1:PersonName> How is the application data integrity guarantied?
E.g. what happens when some of the facts are changed in middle of rules being
executed .. ? what should happen ?</span></font><o:p></o:p></p>
</div>
</div>
</blockquote>
<div>
<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'><br>
When a rule activation is executed<st1:PersonName w:st="on">,</st1:PersonName>
the code of the consequence frequently changes one or more facts. This results
in reevaluations of rule conditions<st1:PersonName w:st="on">,</st1:PersonName>
etc. This is just the way Drools works.<br>
<br>
-W<br>
<br>
<br>
<o:p></o:p></span></font></p>
</div>
<blockquote style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 6.0pt;
margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt;
border-color:-moz-use-text-color -moz-use-text-color -moz-use-text-color rgb(204, 204, 204)'>
<div link=blue vlink=purple>
<div>
<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'>-abhay<o:p></o:p></span></font></p>
</div>
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_______________________________________________<br>
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or use this message or any part thereof. If you receive this message in error<st1:PersonName
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