I found the problem and it had nothing to do with the rules (or not much anyway). All the rules are operating on the same instance of document. The addDocuments method is passed that instance and it is added to an array _by reference_. Thus, when the next rule comes along and modifies the document, it modifies the same instance that is referenced in the array and the values change there. I fixed it by simply modifying the addDocuments method to create a new document instance with a copy constructor and then add the _local_ instance to the array, rather than the one passed in. Works great! --Jeff -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Grimshaw, Jeffrey Sent: Saturday, March 10, 2007 4:31 PM To: Rules Users List Subject: [rules-users] Trouble adding things to a list Hi all. I've got some rules that are supposed to add documents to a list that is then returned to the caller. Each rule sets some properties on a document and then adds it to the list. The correct number of objects are being added to the list, but each object has the attributes that were set in the first matching rule. It seems as if the properties on the object can be set only once and cannot be changed by subsequest rules. Here's the comlete DRL: package com.mycompany.rules.documentlist; #generated from Decision Table import com.mycompany.rules.documentlist.*; #From row number: 11 rule "DocumentList_11" when document : DocumentAttributes() docList : DocumentList() then document.setAllowActivityCompletion(false); document.setName("Document 1"); document.setTypeID(100); document.setHelpFile("Help File"); docList.addDocuments(document); end #From row number: 12 rule "DocumentList_12" when document : DocumentAttributes() docList : DocumentList() then document.setDisplayDocument(true); document.setName("Document 2"); document.setTypeID(101); document.setHelpFile("Help File"); docList.addDocuments(document); end As you can see, the DRL was generated from a decision table, but I don't think that has anything to do with the behavior I'm seeing. The document bound variable is set correctly and added to the list in the first rule, but the second rule adds the same document as was added in the first rule. Any suggestions as to what is going on here would be much appreciated. Is it even possible to get there from here? I tried setting Sequential=true on the decision table, but that does not help. Thanks, Jeff Grimshaw Sr. Programmer/Analyst Green Point Mortgage _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users