<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'">Hi Thomas<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN><BR>
<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'"> <o:p></o:p></SPAN><BR>
<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'">Thanks your prompt reply. I am sure all three attributes are NOT null. I have tested them before sending question to mailing list. If you want, I can send complete sample code and you can try it at your end.<o:p></o:p></SPAN><BR>
<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'"> <o:p></o:p></SPAN><BR>
<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'">Regards,<o:p></o:p></SPAN><BR>
<SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Verdana','sans-serif'">Dhari<o:p></o:p></SPAN><BR>
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Date: Tue, 23 Feb 2010 02:50:08 -0800<BR>From: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=383423&i=0" target="_top" rel="nofollow">[hidden email]</a><BR>To: <a href="http://n3.nabble.com/user/SendEmail.jtp?type=node&node=383423&i=1" target="_top" rel="nofollow">[hidden email]</a><BR>Subject: Re: Comparing Date with || OR operator<BR><BR>
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<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">If it works fine with an and operator then I’d imagine that startDate < $regDate returns false, with an && this would abort evaluation immediately but with an or it would mean that startDate > endDate is evaluated and so presumably it is this bit that is throwing the NPE. I’d imagine that the most likely reason for this would be that endDate is null.</SPAN></P>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"> </SPAN></P>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Try changing it too </SPAN></P><PRE>Segment ( startDate < $regDate || (endDate != null && startDate > endDate) )</PRE>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">And see whether you loose the NPE.</SPAN></P>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"> </SPAN></P>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Thomas</SPAN></P>
<P class=ecxMsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"> </SPAN></P>
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<P class=ecxMsoNormal><B><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'"> <A rel="nofollow" target="_top" link="external">[hidden email]</A> [mailto:<A rel="nofollow" target="_top" link="external">[hidden email]</A>] <B>On Behalf Of </B>dhari<BR><B>Sent:</B> 23 February 2010 06:15<BR><B>To:</B> <A rel="nofollow" target="_top" link="external">[hidden email]</A><BR><B>Subject:</B> [rules-users] Comparing Date with || OR operator</SPAN></P></DIV></DIV>
<P class=ecxMsoNormal> </P>
<P class=ecxMsoNormal>The following code generates NPE in ReteTuple.java </P><PRE>rule </PRE><PRE> when</PRE><PRE> Membership ( $regDate : regDate)</PRE><PRE> Segment ( startDate < $regDate || startDate > endDate )</PRE><PRE> then</PRE><PRE> System.err.print(“Invalid start date”);</PRE><PRE>end</PRE>
<P class=ecxMsoNormal>I am new in Drools and don’t know much about DRL scripting. It works fine I use && operator instead. </P>
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View this message in context: <a href="http://n3.nabble.com/Comparing-Date-with-OR-operator-tp347656p383423.html">RE: Comparing Date with || OR operator</a><br>
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