Hi Mario! =) Also relevant may be the Web Beans JSR (299) that Jboss is leading for integrating EJB3 with JSF.
Separating concerns is important if the persistence/EJB layer is (potentially) serving many view tiers. Many projects are using transport objects to move data between the EJB layer and the view tier. But you're right often it is enough to just wrap the persitent pojos in them. Spring web flow is a also a good alternative to the conversation system you are describing... Dhanji. -----Original Message----- From: Mario Ivankovits [mailto:[EMAIL PROTECTED] Sent: Wednesday, 5 July 2006 6:06 PM To: MyFaces Discussion Subject: Re: EJB3.0 and Backing Beans Design Hi! I am not sure, if it is really required to separate the entities and the view model. We use hibernate too, but directly use the entities in the view. This means, if one changes some data, we use the transparent mechanismn of the persistence framework to have them persisted. For sure, this requires you to - or say, it'll make things much easier - use a application transaction or conversation. For this there is e.g. JBoss Seam, or, if you would like to use a lightweigt approach, the conversation tag in tomahawk sandbox. So in the end there is no need to duplicate your entities and you can make full use of your persistence framework including the versioning stuff. The conversation tag is a very young guy, but I'll help you out in adapting it for your application - and fix remaining bugs for sure ;-) - if you decide to use this stuff. Ciao, Mario This correspondence is for the named persons only. It may contain confidential or privileged information or both. No confidentiality or privilege is waived or lost by any mis transmission. If you receive this correspondence in error please delete it from your system immediately and notify the sender. You must not disclose, copy or relay on any part of this correspondence, if you are not the intended recipient. Any opinions expressed in this message are those of the individual sender except where the sender expressly, and with the authority, states them to be the opinions of the Department of Emergency Services, Queensland.
