Hi Felipe, When you define your LHS in the BRMS, there is an option to assign a variable to the expression. In the When part, there should be a little green triangle beside Person. Click on this to get a dialog called "Modify constraints for Person". At the bottom of this dialog is an option to set a variable name to bind to Person. Type p, or whatever you want into the text box and then click the Set button beside the text box. You should now have a LHS constraint of the form p:Person(...). Now create a Then action by clicking the + at the RHS of the Then part. A dialog will appear called "Add a new action". The first two option allows you to pick the variable p you just created - you probably want the second option of "modify a fact" as you want to call update(p) after modifying p. You should now see something like Set [p] in the Then part. Click on the Green triangle above Set [p] and you will get a dialog called "Add a field" with a list of the fields in the Person class. Choose the one you want to set (approvedMount?). What this does is actually call the method called setApprovedMount (Press View Source button to see). The Set action should now have a text box where you can enter the parameter $income * 1.2. I've had a look at the source code for this functionality and it only allows Setter methods to be called - unfortunately you cannot call any other methods on Person. Regards Shahad On 10/3/07, Felipe Piccolini <felipe.piccolini(a)bluesoft.cl&gt; wrote: Ok, so to fit on the "not ignored emails" from the list Mark posted, I changed the title. However I following in the list anyways beacuse Im resending this email in less than 3 days. Note: Im not desperate, nor this is for today. This just came out today yesterday and well... its important to me, but I think I can get a work around for now. So here is the real on-topic question. ----------------- Anyone knows how to use variables (from fields) setted on LHS, to modify a field on the RHS using the GUI editor from BRMS? What I need is to write this rule on BRMS. rule "Set approvedMount for a women" no-loop true when $p: Person($sex: sex == "F", $income: incomeMount) then $p.setApprovedMount($income * 1.2); update ($p); end I know I can use formulas, but I only know how to set those on LHS, I dont know how to put a formula on RHS (setter of the field to modify). Thanks. Felipe Piccolini M. felipe.piccolini(a)bluesoft.cl _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

On the RHS, if you put "=" it will allow you to type in that calculation. I guess that is not as intuitive as it shoudl be (on the LHS it makes you tell it what you want to do), I am open to considering changing that so it is more obvious. Yes, you can only access setters this way (at the moment). Everything is based around fields and facts, (not so much objects). The balancing act is to not put too much power into the GUI (as if you want more, that is what DRL is for). On 10/4/07, Felipe Piccolini <felipe.piccolini(a)bluesoft.cl&gt; wrote: Ok, so to fit on the "not ignored emails" from the list Mark posted, I changed the title. However I following in the list anyways beacuse Im resending this email in less than 3 days. Note: Im not desperate, nor this is for today. This just came out today yesterday and well... its important to me, but I think I can get a work around for now. So here is the real on-topic question. ----------------- Anyone knows how to use variables (from fields) setted on LHS, to modify a field on the RHS using the GUI editor from BRMS? What I need is to write this rule on BRMS. rule "Set approvedMount for a women" no-loop true when $p: Person($sex: sex == "F" , $income: incomeMount) then $p.setApprovedMount($income * 1.2); update ($p); end I know I can use formulas, but I only know how to set those on LHS, I dont know how to put a formula on RHS (setter of the field to modify). Thanks. Felipe Piccolini M. felipe.piccolini(a)bluesoft.cl _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users