<p dir="ltr">Not checking for nulls is a debatable behavior :) <br>
In 5.6 you should be able to use the null safe accessor <br>
Business activity.!status == ...<br>
Which will be rewritten to do the check for you</p>
<div class="gmail_quote">On Jul 16, 2014 4:33 AM, "braveheart85" <<a href="mailto:andrea.pacifico.85@gmail.com">andrea.pacifico.85@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Yesterday I tried version 5.6. I have had a problem with the MVEL syntax.<br>
<br>
rule "RULE1"<br>
$result: PersonData( businessActivity.status == "CLOSED" )<br>
end<br>
<br>
This rule that works in the version 5.5, now have a problem in version 5.6:<br>
<br>
unable to invoke method:<br>
org.titan.registry.filter.BusinessActivityData.getStatus: target of method<br>
is null<br>
<br>
The problem is that not all Person facts inside the working memory have a<br>
business activity. NullPointer would be quite correct but in version 5.5 the<br>
behaviour was different...<br>
<br>
Maybe I'm abusing of your kindness.<br>
Andrea<br>
<br>
<br>
<br>
--<br>
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