<br> Drools explicitly disables control statements in MVEL consequences, at it is usually not a good sign. I.e., you should probably encapsulate that check you are doing in a LHS condition (even if you have to wrap it up in an eval()), so that the rule will not be activated and fired when it shouldn't.<br>
<br> Edson<br><br><div class="gmail_quote">2009/11/3 Shah, Malay <span dir="ltr"><<a href="mailto:Malay.Shah@morganstanley.com">Malay.Shah@morganstanley.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div>
<div><span><font face="Verdana" size="2">Hi
All,</font></span></div>
<div><span><font face="Verdana" size="2"></font></span> </div>
<div><span><font face="Verdana" size="2">I am trying to
compile a drool rule using MVEL dialect and getting the following weird error.
</font></span></div>
<div><span><font face="Verdana" size="2"></font></span> </div>
<div><span><font size="2" color="#ff0000"><font size="2" color="#ff0000"><font size="2" color="#ff0000"><font size="2" color="#ff0000">
<p align="left">Unable to determine the used declarations.</p>
<p align="left">unbalanced braces (near code: << ... core1_entityOID);
...>>) (position: 33) : [Rule name=Legacy ETSDB Rule, agendaGroup=MAIN,
salience=0, no-loop=false]</p></font></font><u><font size="2" color="#000080"><font size="2" color="#000080">
<p>org.mvel.ParseException</p></font></font></u></font></font><font size="2" color="#ff0000"><font size="2" color="#ff0000">: unbalanced braces (near code: << ...
core1_entityOID); ...>>) (position: 33)Unable to build expression for
'consequence'</font></font><font size="2" color="#ff0000"><font size="2" color="#ff0000"></font></font></span></div>
<div><font size="2" color="#ff0000"><font face="Verdana" size="2" color="#ff0000"></font></font><font size="2" color="#ff0000"><font size="2" color="#ff0000"><font face="Verdana"></font></font></font> </div>
<div><span><font face="Verdana" size="2">The code I am
trying to compile is:</font></span></div>
<div><font face="Verdana" size="2" color="#ff0000"></font> </div>
<div><font size="2"><font size="2"><font face="Verdana" color="#0000ff">package
S_124<br>import com.ms.ieddata.dataQuality.violation.Violation;<br>import
com.ms.ieddata.etsdb.model.EtsExecution_core;<br>import
com.ms.ieddata.etsdb.model.EtsExecutionOrder_core;<br>global java.util.HashSet
violations;<br>global java.util.HashSet
violationKeys;</font></font></font></div><font><font><font>
<div><br><font face="Verdana" size="2" color="#0000ff">dialect "mvel"</font></div>
<div><font face="Verdana" size="2"></font><br><font face="Verdana" size="2" color="#0000ff">rule "Legacy ETSDB Rule"</font></div>
<div><br><font face="Verdana" size="2" color="#0000ff">when<br>EtsExecution_core1:EtsExecution_core(crossInd == "1" ,
lastCapacity != "3" , lastDestinationID not in
("EUREX","IDEM","MEFF","LIFFE"))<br>EtsExecutionOrder_core1:EtsExecutionOrder_core(entityOID
== EtsExecution_core1.parentOID , exDestination in ("I","L") , swapComponentType
!= "swaps" , orderCapacity not in
("D","R","X","L","E","T","C","O","P","S"),EtsExecutionOrder_core1_entityOID:entityOID,EtsExecutionOrder_core1_application:application,EtsExecutionOrder_core1_entityVID:entityVID)</font></div>
<div><br><font face="Verdana" size="2" color="#0000ff">then</font></div>
<div><br><font face="Verdana" size="2" color="#0000ff">String
key="S-124_EtsExecution_core" + "_entityVID_" +
"EtsExecutionOrder_core1_entityVID" + "_application_" +
"EtsExecutionOrder_core1_application" + "_entityOID_" + </font></div>
<div><font face="Verdana" size="2" color="#0000ff">"EtsExecutionOrder_core1_entityOID";</font></div>
<div><br><font face="Verdana" size="2" color="#0000ff">vPresent =
violationKeys.contains(key);</font></div>
<div><br><font face="Verdana" size="2" color="#0000ff">if (!vPresent)<br>{<br><span> </span> violation = new
Violation();<br><span> </span> violation.putRuleActionAttribute("ruleId","S-124");<br><span> </span> violation.putRuleActionAttribute("ruleName","Legacy
ETSDB Rule");<br><span> </span> violation.putRuleActionAttribute("legacyRuleType","1");<br><span> </span> violation.putRuleActionAttribute("entityName","EtsExecution_core");<br>
<span> </span> violation.putRuleActionAttribute("fieldName","Field");<br><span> </span> violation.putRuleActionAttribute("entityVID",EtsExecutionOrder_core1_entityVID);<br><span> </span> violation.putRuleActionAttribute("application",EtsExecutionOrder_core1_application);<br>
<span> </span> violation.putRuleActionAttribute("entityOID",EtsExecutionOrder_core1_entityOID);<br>}</font></div></font></font></font></div>
<div><font face="Verdana" size="2" color="#0000ff"></font> </div>
<div><font size="2"><font size="2"><font face="Verdana" color="#0000ff">end</font></font></font></div>
<div><font face="Verdana" size="2"></font> </div>
<div><span><font face="Verdana" size="2">The
code works fine when I use java dialect. Also, if I remove the if statement
from consequence, the code get compiled in mvel and java dialects. Am I missing
something obvious here? I am using drools 4.0.1.</font></span></div>
<div><span><font face="Verdana" size="2"></font></span> </div>
<div><span><font face="Verdana" size="2">Thanks</font></span></div>
<div><font face="Verdana" size="2"></font> </div>
<div style="color: black; font-family: arial;"><span style="font-size: 10pt;">Malay Shah<br></span><span style="font-weight: bold; font-size: 7.5pt;">Morgan Stanley | IDEAS Practice
Areas<br></span><span style="font-weight: normal; font-size: 7.5pt;">750 Seventh
Avenue, 6th Floor | New York, NY 10019<br>Phone: +1 212
762-4495<br><a href="mailto:Malay.Shah@morganstanley.com" target="_blank">Malay.Shah@morganstanley.com</a><br></span></div>
<div><font face="Verdana" size="2"></font> </div></div>
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<br></blockquote></div><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><br>