Please give ur's email-id. I had written such a project using weblogic server and Oracle as the DB. This involves two sessionBeans and two entityBeans along with the client program to test the same.
You will have to go through the code. I had simulated to see if an ejb which is in one tx calls another ejb doesn't start(since I had the trans attribute as required in the ejb-jar.xml) a new tx (although you can do it through the ejb-jar.xml).
I need some help desperately. I have to demonstrate the transaction mechanism to my employer. I don't have much EJB experience. Someone please help me out here. Can anyone give me a simple bean project to demonstrate transaction mechanism? Anything particular to Weblogic is greatly appreciated. Remember your first days with EJB and please help me out. Please see this link too. http://www.coderanch.com/t/314961/EJB-JEE/java/EJB-Transactions-inWeblogic