Re: [rules-users] Need help related to collection of data accessing in rule file.

Hi , I am trying to create rule  on a fact , which contains arraylist of collection and the object in the collection internally contains an arraylist of another collection of objects. This looks like  object A contains collection of objects B and B contains collection object C A ->  blist ( Arraylist<B> ) B -> clist (ArrayList<C> ) C-> dlist( ArrayList<D>) D-> type ( string) I am inseting A as fact to the working memory. I am in confusion state like how to write the rule to place conditions  on collection C. Can I use from in the form of nested from in rule statment. Thanks Prasad Raju Sagi Mobile: 847-644-4103 ________________________________ From: Aziz Boxwala <boxwala(a)yahoo.com&gt; To: rules-users(a)lists.jboss.org Sent: Thursday, June 11, 2009 1:58:28 PM Subject: [rules-users] process order example not working fully I am trying to execute a ruleflow and use rules to assign tasks within the ruleflow in Drools 5.0.1. I have a drl file included in my knowledge base that tries to assign a task to a user when a new human task is created. This is based on the example in org.drools.example.process.order. I can't get my code to work. I don't the rules in the example are working either (dslr for the task assignment or the drl for dynamic logging). After some attempts, I found that this condition     WorkItemNodeInstance() does not evaluate to true ever. Do I have to do anything special to make the WorkItemNodeInstance appear in working memory? Thanks for any help. --Aziz