Am Don, 2002-12-19 um 10.39 schrieb Konstantin Piroumian: > From: "Jakob Praher" <[EMAIL PROTECTED]> > > > hi all, (again) > > > > [ hope that someone reads my previous post ... ] > > Don't worry about it even if you don't get any response, this doesn't mean > that nobody reads your messages. > I read at least ;) > thank you ;-)
> What you are proposing sounds useful and it'd be great if you could provide > a patch for it (as described in > http://xml.apache.org/cocoon/howto/howto-bugzilla.html). > ok I'll see what I can do. I will test various implementations, as it should be a good designed patch. I'll inform you about my work on this .... > Regards, > Konstantin > > > > > I would like to intercept the lifecycle of the Form Model object. > > > > if I understand the architecture right, then the Action (which extends > > AbstractXMLFormAction), when started creates a new Form instance and > > stores it in the request attribute or in the Session, depending on the > > configuration. > > > > --- form creation -------------------------------------- > > > > * AbstractXMLFormAction.getForm( ) > > > > and the model is created using > > > > * AbstractXMLFormAction.getFormModel( ) > > > > which looks up the class form the parameters and does a Class.forName( ) > > > > -- form deletion ---------------------------------------- > > > > Form.remove( objectModel, id ); > > > > > > now what I would like to do is the following: > > > > a) in the START state: intercept FormModel initialization > > > > b) in the END state: intercept FormModel disposal > > > > mechanisms would be: > > > > --- extend the listeners and add: ----------------------- > > > > > > interface FormModelLifecycleListener > > { > > void beforeInitialize( ); > > void afterInitialize( Object amodel ); > > void beforeDispose( int formstate, Object amodel ); > > void afterDispose( ); > > } > > > > which can be registered. > > registeration should also be able to > > > > --- let the model implement avalon activity interfaces --- > > > > class MyModel implements Disposable, Initializable > > { > > .... > > void initialize( ) { /* do soemthing here .. */ } > > void dispose( ) { /* do something here .. */ } > > } > > > > With these interceptors I could load the model with data from an > > appserver prior to using it in the form .... > > > > also important would be something like: > > > > /* AWT ActionListener ... */ > > interface ActionListener { > > void actionPerformed( ActionEvent e ) { > > > > } > > } > > > > With such an interface the business logic could intercept the outcome of > > the form handling and could take appropriate steps (like use the > > formModel to change data ). > > > > I need something like the above in order to application server handling. > > > > I am just getting started with XMLForm - so please bear with me. > > Also it is already pretty late, but nevertheless I post my initial ideas > > on that. > > > > I look forward to hearing any resposne ... > > > > thanks > > > > -- Jakob > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, email: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, email: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, email: [EMAIL PROTECTED]
