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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'>Edson,<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'>Thanks for your replies they have really
helped. <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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>I am still not sure about creating a new operator, since the ‘>=’
operator already exists it just does not cater for strings, which I want to
add. So would creating a new operator cause the existing one to be overrriden
when added to the registry? <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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Having looked at the examples and tests you emailed, I am still unsure
how to actually wire in the changes, say for example I have replaced the
existing ‘>=’ evaluator or created a new evaluator so that ‘>=’
now handles strings. When writing rules will the engine pick this up?.. or
do I need to create a new jar by building?.. or do I need to update a
configuration file?... im just not sure…<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 style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>3)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Wouldn’t the following also add the evaluator definition by
replacing the existing one.. <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 style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> <u>PackageBuilderConfiguration</u>
pkgb = </span></font><b><u><font size=2 color="#7f0055" face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:#7F0055;font-weight:
bold'>new</span></font></u></b><u><font size=2 color=black face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:black'>
PackageBuilderConfiguration()</span></font></u><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>; </span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> <u>pkgb.getEvaluatorRegistry()</u>.<u>addEvaluatorDefinition</u>(</span></font><b><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>new </span></font></b><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black;background:silver'>ComparableEvaluatorsDefinition</span></font><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>());</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> <u><span
style='background:silver'>PackageBuilder</span></u> builder = </span></font><b><u><font
size=2 color="#7f0055" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#7F0055;font-weight:bold'>new</span></font></u></b><u><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'> <span style='background:silver'>PackageBuilder</span>(pkgb)</span></font></u><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>;<o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> <u>builder.addPackageFromDrl(source)</u>;</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> <u>Package</u>
pkg = <u>builder.getPackage()</u>;</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><font
size=2 color="#3f7f5f" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#3F7F5F'>// Add the package to a <u>rulebase</u>
(deploy the rule package).</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><font
size=2 color="#0000c0" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#0000C0'>rules</span></font><font size=2
color=black face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> = <u>RuleBaseFactory.<i><span style='font-style:italic'>newRuleBase</span></i>()</u>;</span></font><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></font></p>
<p class=MsoNormal style='text-autospace:none'><font size=2 color=black
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'> </span></font><u><font
size=2 color="#0000c0" face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";color:#0000C0'>rules</span></font></u><u><font
size=2 color=black face="Courier New"><span style='font-size:10.0pt;font-family:
"Courier New";color:black'>.addPackage(pkg)</span></font></u><font size=2
color=black face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>;</span></font><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New"'><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'>Thanks for your help…<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>
<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'>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>Edson Tirelli<br>
<b><span style='font-weight:bold'>Sent:</span></b> 14 July 2009 23:05<br>
<b><span style='font-weight:bold'>To:</span></b> Rules Users List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [rules-users] Getting
hold of the Evaluator Registry</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'><br>
I am working in one example of drools features where I implement a
custom evaluator here:<br>
<br>
<a
href="http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/lotrc/src/main/java/org/drools/examples/lotrc/evaluators/IsAdjacentToEvaluatorDefinition.java">http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/lotrc/src/main/java/org/drools/examples/lotrc/evaluators/IsAdjacentToEvaluatorDefinition.java</a><br>
<br>
I use the configuration file instead of API in the example:<br>
<br>
<a
href="http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/lotrc/src/main/resources/META-INF/drools.packagebuilder.conf">http://anonsvn.jboss.org/repos/labs/labs/jbossrules/contrib/lotrc/src/main/resources/META-INF/drools.packagebuilder.conf</a><br>
<br>
[]s<br>
Edson<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2009/7/14 Edson Tirelli <<a href="mailto:tirelli@post.com">tirelli@post.com</a>><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'><br>
Asif,<br>
<br>
My recommendation is create a new operator for you instead of
overriding existing ones. Although if you really want to replace the existing
ones, setting the property or calling the API to register a new operator will
override the default.<br>
<br>
See:<br>
<br>
<a
href="http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/builder/KnowledgeBuilderConfigurationTest.java"
target="_blank">http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/builder/KnowledgeBuilderConfigurationTest.java</a><br>
<br>
Test method:<br>
<br>
testEvaluatorConfiguration()<br>
<br>
[]s<br>
Edson<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>2009/7/14 Asif Iqbal <<a href="mailto:Asif.Iqbal@infor.com"
target="_blank">Asif.Iqbal@infor.com</a>><o:p></o:p></span></font></p>
<div>
<div>
<div link=blue vlink=purple>
<div>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>Hi,</span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'> </span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>What
I need to do is modify one of the evaluator classes specifically
‘<=’, so that it can handle strings. Now I know I need to create
a class similar to ComparableEvaluatorDefinition. But what I want to do is
replace the existing one in the evaluator registry with my implementation which
will include the additional String capability.</span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'> </span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>From
my understanding that should be all that is required. Unless im missing
something… now all I need to know is how do I get hold of the evaluator
registry?</span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'> </span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>Cheers</span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'> </span><o:p></o:p></font></p>
<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt'>I</span><o:p></o:p></font></p>
</div>
</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 style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>_______________________________________________<br>
rules-users mailing list<br>
<a href="mailto:rules-users@lists.jboss.org" target="_blank">rules-users@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=3 color="#888888" face="Times New Roman"><span
style='font-size:12.0pt;color:#888888'><br>
<br clear=all>
<br>
-- <br>
Edson Tirelli<br>
JBoss Drools Core Development<br>
JBoss by Red Hat @ <a href="http://www.jboss.com" target="_blank">www.jboss.com</a></span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<br clear=all>
<br>
-- <br>
Edson Tirelli<br>
JBoss Drools Core Development<br>
JBoss by Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><o:p></o:p></span></font></p>
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