Fwd: model - controller interface

2003-07-25 Thread Jens v . P .
Hello, there were many answers here about J2EE patterns and things like OJB. A nice demonstration of these things can be found in Chuck Cavaness book Programming Jakarta Struts - there's an example using these pattern with OJB and Struts (chapter 6: Struts Model Components). Jens

Has anybody extended the validator framework?

2003-07-23 Thread Jens v . P .
Hello, I'm wondering if anybody has already extended the validator framework - to use it in the business layer instead of the controller layer - supporting dynamically loaded/created forms Validating user input is no special struts or web application requirement. In my case, all applications are

Re: Has anybody extended the validator framework?

2003-07-23 Thread Jens v . P .
Hi, Am Mittwoch, 23.07.03 um 16:24 Uhr schrieb Derek Chen-Becker: Since the questionnaire is the model for the form, couldn't you just encapsulate a real questionnaire business object within an ActionForm? It adds a layer, but since ActionForms are objects and not interfaces I don't see an

Re: Has anybody extended the validator framework?

2003-07-23 Thread Jens v . P .
Hi, thanks Derek, thanks Chuck. Am Mittwoch, 23.07.03 um 17:24 Uhr schrieb Derek Chen-Becker: [..] I hadn't thought of client-side validation, but that's kind of tricky [..] Or am I misunderstanding what you mean by client-side? No, that's what I meant. But: the validator framework already

Re: Why not to use Action chaining ?

2003-07-22 Thread Jens v . P .
Hello, Could anyone of you tell me why we ahuld not use Action chaining in struts framework ? I'm a Struts newbie, so maybe my answer ends up in a new question. But as far as I understand the action pattern (question 1: Are Struts actions commands as described in the GOF book). And as far as I

Re: Why not to use Action chaining ?

2003-07-22 Thread Jens v . P .
Hello, Am Dienstag, 22.07.03 um 16:37 Uhr schrieb Siva: My requirement is like this : I have two different JSP files (assume a.jsp ane b.jsp) arranged as tiles in a Layout page. If the user makes an action in a.jsp, I need to change the model corresponds to both the a.jsp and b.jsp - both are

Re: Dsiplaying forms without validation

2003-07-22 Thread Jens v . P .
Hi, this question was asked several times before, I also asked this questions a week ago. Just have a look at the mailing list archive. There are two approaches: 1) Two actions: ViewFormFirstTimeAction with validate=false in the struts-config.xml, and ViewFormAction with validate=true 2)

Validation on first page impression

2003-07-17 Thread Jens v . P .
Hello, I'm wondering how to suppress form validation when a form is shown the first time to the user. Is there a flag to be set or something? The validation method is called the first time the page is selected, and of course no field is populated, so that the user receives many errors telling

Re: Validation on first page impression

2003-07-17 Thread Jens v . P .
Hello, I wondered why the validator framework has no functionality for handling the first page impression. I'm not sure - but I suspect that also other newbies would have this problem. In other threads about this topic I found the solution of two actions - and I tend to say that this is the

Validator Framework and Business Objects

2003-07-11 Thread Jens v . P .
Hello, I'm currently working on a framework for a special kind of web-applications. These applications all require some questionnaires. These questionnaires are defined using a bundle of business objects. These business classes include logic for validating user input values. The validator