Hi guys, Thanks a lot for looking into it. I just solved it. There were multiple objects getting created of the same type due to which rules was not getting fired. The error shown was very misleading :( Thanks again M -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of rules-users-request(a)lists.jboss.org Sent: Tuesday, June 08, 2010 11:37 AM To: rules-users(a)lists.jboss.org Subject: rules-users Digest, Vol 43, Issue 43 Send rules-users mailing list submissions to rules-users(a)lists.jboss.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.jboss.org/mailman/listinfo/rules-users or, via email, send a message with subject or body 'help' to rules-users-request(a)lists.jboss.org You can reach the person managing the list at rules-users-owner(a)lists.jboss.org When replying, please edit your Subject line so it is more specific than "Re: Contents of rules-users digest..." Today's Topics: 1. Re: Multiple Object referencing error (Fnu Mahalakshmi) 2. Re: Multiple Object referencing error (Swindells, Thomas) 3. smooks query (Fnu Mahalakshmi) 4. Re: Drools 5.1.0.M2 - BPMN2 process issue - Eclipse plugin. -- The method getTextContent() is undefined for the type Node (Vijay K Pandey) ---------------------------------------------------------------------- Message: 1 Date: Tue, 8 Jun 2010 10:13:15 -0400 From: Fnu Mahalakshmi <FMahalakshmi(a)nyx.com&gt; Subject: Re: [rules-users] Multiple Object referencing error To: &quot;&#39;rules-users(a)lists.jboss.org&#39;&quot; <rules-users(a)lists.jboss.org&gt; Message-ID: <994758E35590274E955FA75763C5AA5002D01087(a)MTEXMBXP01.ad.NYX.com&gt; Content-Type: text/plain; charset="us-ascii" Hi, Sorry about not posting the code. My mistake. Classes : public class Room { private String name private int number; // getter and setter methods here } public classs Sprinkler { private Room room; private boolean on; // getter and setter methods here } public class Fire { private Room room; // getter and setter methods here } I load 2 input files: 1. with data of fire and Room { f1, r1;f2, r2} 2. with data of sprinkler and Room {"n/a",r1,"n/a",r3} I am writing rule " if fire exists in room start sprinkler" { so if f1 and r1 in this case: I should get s1, r1 } But since no sprinkler in r2 , That data should not get outputted. I want my ouput file to look like: Name Number Xyz 1 # xyz is my room name and 1 is the room number : r1(xyz,1) . But I am unable to delete entries.Is there anyway I can do it? #only this should appears as the other room does not have a sprinkler. when Fire($room : room) $sprinkler : Sprinkler( room == $room, modified == false ) Then $sprinkler.setmodified(true); modify( $sprinkler ) { setSprinkle( "s1" ) }; end Error: I am getting the error at a place where I am trying to write back from my working memory to my output file. It is happening because the second rule to turn on the sprinkler does not work and as a result a null value is getting stored. Is it possible that there can exists 2 different Room() objects with the same room.name ?? Because the room objects are getting stored from different files to the working memory ?? Do you think it better to store room objects in a separate list?? I store all information into a list and load that into the memory. Am I going wrong here? Please help. Thank you. -M Please consider the environment before printing this email. Visit our website at http://www.nyse.com **************************************************** Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. ------------------------------ Message: 2 Date: Tue, 8 Jun 2010 15:20:54 +0100 From: "Swindells, Thomas" <TSwindells(a)nds.com&gt; Subject: Re: [rules-users] Multiple Object referencing error To: Rules Users List <rules-users(a)lists.jboss.org&gt; Message-ID: <DAC86F5F3B84F14088F0DB16092558CA07E8F9EC5D(a)UKMA1.UK.NDS.COM&gt; Content-Type: text/plain; charset="us-ascii" You've still missed out the file which actually contains the main method which is where the exception is being thrown from... ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster(a)nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ************************************************************************************** ------------------------------ Message: 3 Date: Tue, 8 Jun 2010 11:30:17 -0400 From: Fnu Mahalakshmi <FMahalakshmi(a)nyx.com&gt; Subject: [rules-users] smooks query To: &quot;&#39;rules-users(a)lists.jboss.org&#39;&quot; <rules-users(a)lists.jboss.org&gt; Message-ID: <994758E35590274E955FA75763C5AA5002D01088(a)MTEXMBXP01.ad.NYX.com&gt; Content-Type: text/plain; charset="us-ascii" Hi, Can anyone point me towards a good documentation as to how smooks works with drools? How does smooks transform non-XML(java) data?? I could not understand this part??? Thank you in advance, M </pre> <P><hr size=1></P> <P><STRONG><font color=green>Please consider the environment before printing this email.</font></STRONG></P> <P><STRONG>Visit our website at <a href="http://www.nyse.com">http://www.nyse.com</a> <br> ***************************************************************************** <br> Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. </STRONG></P><pre>