[jboss-user] [JBoss Seam] - Re: DAO's: stateless or not

Hi, I am thinking about the same question - should I or should I not. The main problem is, that I have implemented certain queries (load the current user from the database for example) the second time in my action beans and it is time for a refactoring. You have two options in my opinion: Since seam is a component framework, you can also inject another component (action in example terms) into another component. So I have an action coping with customers which implements the query to load a certain user. Another component needs the user to load the computers of the user (toMany relationship). So I can inject the user action into the computer action. | | Second option is to create a DAO. Since EJB3 is more object oriented than the previous specifications, I do not like to add a DAO-Layer. In my opinion, it has to be more simple - queries and persistence functions should also be in the entity bean, so I have all logic in the entity bean or my business object. The entity bean is now as intelligent as it should be; It can load itself, can query for itself and can operate on itself (business specific). | | | An interesting question is, how seam will handle the different scope definitions if you inject components into other components. For example, if you inject (@In) a component with scope EVENT into a component with Scope CONVERSATION. | | Regards, | | Cyrill View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4119897#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...