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<p class="MsoNormal"><span style="color:#1F497D">Wrap in in ()’s like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> $tc : TaskContext( times
</span><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">contains</span></b><span style="font-size:10.0pt;font-family:"Courier New";color:black"> (getTimeByID(ETimeID.NOW)) )</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I have not personally tried this exact scenario, but the concept is the same as other scenarios I use this for. The ()’s identifies that evaluation should be used here, except that it’s not really an eval()
because the contents don’t returne true/false, but rather it’s just java code to be processed, and the output can then be used in the evaluation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I do this with matches like this:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">LookupFact ( $lookupValue : value )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">$sf : SomeFact ( value matches (“(?i)” + $lookupValue) )<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org]
<b>On Behalf Of </b>Hezi Stern<br>
<b>Sent:</b> Wednesday, November 23, 2011 7:51 AM<br>
<b>To:</b> rules-users@lists.jboss.org<br>
<b>Subject:</b> [rules-users] How to use contains with a function<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I encountered the following issue:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As an example TaskConectxt() holds a list of time related objects called times.
<o:p></o:p></p>
<p class="MsoNormal">I would like to write a rule which ideally would filter the TaskContext according to a specific time object.<o:p></o:p></p>
<p class="MsoNormal">The problematic restriction is that this time object is derived using a helper function (imported), in this case called
<span style="font-size:10.0pt;font-family:"Courier New";color:black">getTimeByID </span>
which received as input an enum ID of a time and returns the desired time object.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Ideally the rule would like something like this:<span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">rule</span></b><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><span style="font-size:10.0pt;font-family:"Courier New";color:green">"verify time"</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">when</span></b><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black"> $tc: TaskContext(times
</span><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">contains</span></b><span style="font-size:10.0pt;font-family:"Courier New";color:black"> getTimeByID(ETimeID.NOW))</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">then</span></b><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;font-family:"Courier New";color:black">
</span><span style="font-size:10.0pt;font-family:"Courier New";color:olive">//something
</span><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;font-family:"Courier New";color:#960000">end</span></b><span style="font-size:10.0pt;font-family:"Courier New""><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">unfortunately this does not work. <o:p></o:p></p>
<p class="MsoNormal">Is there any way to call a function with a param?<o:p></o:p></p>
<p class="MsoNormal">Is there a better alternative method than this one?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Hezi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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