Hi! I have a list of items in a datatable. It doesn't have a backing @datamodel-variable though, because it's based on the viewed entity (through #{orderDao.instance.items}). Now I want to, say, change the amount of one of these items, without saving any changes made in the gui to the others. My first thought was to just have a commandButton on each row, but having it call orderDao.update updates the entire table, including changes made to the other items. (Which would be great, if I didn't need to make sure that the sum of all the items is below a certain limit) One thought on solving this was to call a method which validated the table, and updated the entity if it passed, and reverted back to the previous values if it didn't. (Through a refresh from the persistence) Though I sadly realized that the entityhome-object doesn't have a refresh-method.. Any thoughts on how this could be solved? Preferably I want a solution centered on the entityhome-dao that I'm using. Cheers, Sebastian View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4071493#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...