1: use subprocesses 2: build some custom code that knows how the relation is and signal the corresponding processes 3: hmm...... be creative... There are no examples of these since there is such a huge diversity of problems that we cannot start providing examples of these. But... there is a very flexible api to be used View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4190128#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...