OK Rajesh, I think we are talking about the same thing now. If you change your data model (for example your ERD of your database) then you indeed have to change your UserData object and add/remove some methods. This also had effect on your form and also to the object that handles the database queries etc.
Are we on the same frequency now? I hope I understand you.....then we can discuss this further..... Regards, Ronald ----- Original Message ----- From: "Rajesh Kanade" <[EMAIL PROTECTED]> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> Sent: Tuesday, October 22, 2002 12:25 PM Subject: RE: Duplication of code in Business objects and Action forms > Thanx Ronald for the reply. > > One solution which I have thought of is > > I have a data object let's say called UserData which has all the > instance variables and getter/setter methods. > > Now both User Form and User Business object have a instance variable of > this UserData object which they use. > This way if my data is changing I just have to change it at one place > i.e. my UserData class. > > Are we both essentially talking the same thing ?? > > Thanx > > Rajesh > > -----Original Message----- > From: Ronald Rotteveel [mailto:r.p.rotteveel@;its.tudelft.nl] > Sent: Tuesday, October 22, 2002 3:44 PM > To: Struts Users Mailing List > Subject: Re: Duplication of code in Business objects and Action forms > > > I'm not using Struts for a very long time now, but I think this is NOT > the way to do this. > > In your ActionForm bean called User I would put the getter/setter > methods. In your UserBO (User Business Object) I would put the methods > that make use of the UserDAO (User Data Access Object). The UserBO is > only for handling the business logic in your form/application. The > UserDAO actually executes the real SQL queries or XML update functions. > > So, User extends ActionForm and is really a simple mapping of your form > in your application. > > In your Action class (belonging to this User form) you map the User bean > and give it as an argument with any function of your UserBO object which > will execute the desired action (update/create/delete etc.). > > Hope I helped you a bit. Maybe other people have better solutions, but > this is the way I handle actions....... > > Good luck........ > > Regards, > > Ronald > > > ----- Original Message ----- > From: "Rajesh Kanade" <[EMAIL PROTECTED]> > To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]> > Sent: Tuesday, October 22, 2002 9:00 AM > Subject: Duplication of code in Business objects and Action forms > > > > Hi All > > > > I am new to Struts so please bear with me. > > > > We have started implementing a new product using struts. > > > > Now I do see that I need to have getter /setter methods declared on > > both > my > > business objects as well as Action form. > > So for e.g if I had a User business object which encapsulates the > > entire business login for my system user. Now I will have UserForm > > class also which will have all the getter/setter methods of ny User > > Object so as to faciliate the CRUD operation from the browser. > > > > > > If something changes I need to go and change it in both the places. > > > > Is there any way to over come this problem. > > > > Any help would be greatly appreciated. > > > > Rajesh Kanade > > > > > > > -- > To unsubscribe, e-mail: > <mailto:struts-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: > <mailto:struts-user-help@;jakarta.apache.org> > > > > -- > To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> > For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org> > -- To unsubscribe, e-mail: <mailto:struts-user-unsubscribe@;jakarta.apache.org> For additional commands, e-mail: <mailto:struts-user-help@;jakarta.apache.org>
