But how to you fill the data in the MB from DAO?
Jesse Alexander (KBSA 21) wrote: > Well we call the the Business-Layer from the managed beans, therefor we have > no need to > pass the MB to the backend... > Alexander > > -----Original Message----- > From: Bj�rn T Johansen [mailto:[EMAIL PROTECTED] > Sent: Tuesday, May 24, 2005 6:18 PM > To: MyFaces Discussion > Subject: Re: Best practice? > > Yes, that's what I was thinking about... But I am not sure if I should pass > the managed > bean just to my business layer and use VO from BO to DAO or just pass along > the managed > bean further on to the DAO..... > > BTJ > > Jesse Alexander (KBSA 21) wrote: > >>Hi Bj�rn >> >>In the project I am actually working on, we decided that our managed beans >>cover >>one usecase and therfor contain quite some logic and reducing the number of >>"data-transfers" between mangaed beans... The actual business-logic is packed >>within service-objects which are served by a factory and called from the >>managed beans. >>The service objects will then call the dao-layer or some other backend to do >>persistence-work. >> >>Whether this is the "best practise"? I do not know, but it works (so far) for >>our >>project on which 4 people are working full time plus one JSF component >>developer. >> >>hth >>Alexander >> >>-----Original Message----- >>From: Bj�rn T Johansen [mailto:[EMAIL PROTECTED] >>Sent: Monday, May 23, 2005 8:52 AM >>To: MyFaces Discussion >>Subject: Best practice? >> >>I was wondering what's the best way of handling the following: >> >>- A managed bean need to be "filled" with data from a database using DAO >>methods; is >>it best just to pass the managed bean as parameter og should one use another >>VO bean >>and populate the managed bean from the VO bean? >> >>- when moving to a page, some fields need to be filled with existing values, >>is this >>best done in the action method that "calls" the new page and value binding >>against a >>managed bean for that page or is there another better way of doing this? >> >> >>Regards, >> >>BTJ >>
