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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'>You would likely NOT want to create a
rulebase per session. Most people create working memory per session. Rulebases
should only be loaded once per server (context) in my opinion, and you reload
it as rules changes. Loading a rulebase loads rules from a file, and orders
your rete tree. For our installation that takes several minutes.<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>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Rulebase = once<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'>Working memory = per user/transaction<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>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>-Michael<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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<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>Jai Vasanth<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, February 01, 2008
3:23 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Rules Users List<br>
<b><span style='font-weight:bold'>Subject:</span></b> [rules-users] Using the
drools as the backend engine for a service</span></font><o:p></o:p></p>
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<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><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi,<br>
<br>
I am planning on using Drools as the rules engine for a service that I am
building. I am considering instantiating a stateful session for every request
to the service. The RuleBase would be created when the service starts. Is this
the correct way to go about incorporating Drools in a service ? Is
session creation an expensive process and if so are there other efficient ways
of doing so ?<br>
<br>
<br>
<br>
Thanks <br>
<br>
Jai <o:p></o:p></span></font></p>
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