why not this?

WebMarkupContainer composite=new WebMarkupContainer("id", new CompoundPropertyModel(new ValueMap()));
composite.add(new TextField("date"));
composite.add(new TextField("time"));


this does what you want right?
composite's model is a map whose date key contains the value of the date textfield, and time key that of time textfield.

-Igor


On 5/8/06, Ittay Dror <[EMAIL PROTECTED]> wrote:
that is not my problem.

my problem is that i have two components (text fields) - one for date, one for time, whose combined value is my model value.

i can, of course, create a custom model, and onSubmit get its values, combine them, and put in the form's model. but this is awkward, and not component oriented.

i want to create a component that means "the values of the children of this component will be combined to its value"

ittay

Martijn Dashorst wrote:
> Ittay,
>
> It seems like you need to create a Panel instead So a much cleaner
> design, and more reusable component would be:
>
> public class MyDatePicker extends Panel {
>     public MyDatePicker(String id, IModel model) {
>         super(id);
>         add(new DatePicker("datepicker", model));
>         add(new TextField("textfield", model));
>     }
> }
>
> <html>
> <body>
> <wicket:panel>
>     <input wicket:id="textfield" type="text" /><span
> wicket:id="datepicker" />
> </wicket:panel>
> </body>
> </html>
>
> Add it to any form, and it will work:
>
> form.add(new MyDatePicker("date", new PropertyModel(person, "birthdate")));
>
> Overriding add is not the right thing to do. Add is usually called in
> constructors, and it is generally considered a bad thing to call
> overridable methods in a constructor as the type hierarchy is not
> completely initialized.
>
> We made quite a lot of method final in our API, see for the reason the
> following faq:
>
>     http://wicketframework.org/faqs.html#why-final
>
> We are also refactoring our component creation/hierarchy composition
> strategy in the next version of Wicket. The add method will be removed
> as a consquence. So depending on overriding add is not the way to go.
>
> Martijn
>
>
> On 5/8/06, *Ittay Dror* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
>     i want to set the model of the child. i thought of doing that by:
>             child.setModel(myModel);
>             super.add(child);
>
>     what is wrong with that? how else can i do it?
>
>     here's the long story of what i'm trying to acheive:
>     i have a web page with two text fields, for date and time (for the
>     date, i'm already using DatePicker). (they are used to schedule an
>     action)
>     my model has a Date field (CompoundPropertyModel), which i want to
>     be set with the date and time (together)
>
>     so, i thought it would be nice to create a CompositeComponent, which
>     will use a MapModel (IModel implementation mapping id to value) in
>     the children. it will have its own model, set by the client, and
>     hooks/strategy to separate its model value to that of the child
>     components, and to restore it when the form is submitted.
>
>     so, the first thing is to set the MapModel in the child components
>
>     ittay
>
>
>     Juergen Donnerstag wrote:
>      > You want to do what? add() is used to add Wicket Components to the
>      > component hierarchy. It is NOT used to set or add a model. Child
>      > components can be access by get(childId).
>      >
>      > Juergen
>      >
>      > On 5/8/06, Ittay Dror < [EMAIL PROTECTED]
>     <mailto: [EMAIL PROTECTED]>> wrote:
>      >> I want to create a MarkupContainer component which sets the
>     model of
>      >> contained components. but MarkupContainer.add is final, so i can't
>      >> override it. why? what else can i do?
>      >>
>      >> Thanx,
>      >> Ittay
>      >>
>      >> --
>      >> ===================================
>      >> Ittay Dror
>      >> Chief architect, openQRM TL,
>      >> R&D, Qlusters Inc.
>      >> [EMAIL PROTECTED] <mailto: [EMAIL PROTECTED]>
>      >> +972-3-6081994 Fax: +972-3-6081841
>      >>
>      >> http://www.openQRM.org
>      >> - Keeps your Data-Center Up and Running
>      >>
>      >>
>      >> -------------------------------------------------------
>      >> Using Tomcat but need to do more? Need to support web services,
>     security?
>      >> Get stuff done quickly with pre-integrated technology to make
>     your job
>      >> easier
>      >> Download IBM WebSphere Application Server v.1.0.1 based on Apache
>      >> Geronimo
>      >>
>     http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>     <http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642>
>      >> _______________________________________________
>      >> Wicket-user mailing list
>      >> Wicket-user@lists.sourceforge.net
>     <mailto: Wicket-user@lists.sourceforge.net>
>      >> https://lists.sourceforge.net/lists/listinfo/wicket-user
>      >>
>      >
>      >
>      > -------------------------------------------------------
>      > Using Tomcat but need to do more? Need to support web services,
>     security?
>      > Get stuff done quickly with pre-integrated technology to make
>     your job
>      > easier
>      > Download IBM WebSphere Application Server v.1.0.1 based on Apache
>     Geronimo
>      > http://sel.as-us.falkag.net/sel?cmd=k&kid0709&bid&3057&dat1642
>     <http://sel.as-us.falkag.net/sel?cmd=k&kid%120709&bid&3057&dat%121642 >
>      > _______________________________________________
>      > Wicket-user mailing list
>      > Wicket-user@lists.sourceforge.net
>     <mailto:Wicket-user@lists.sourceforge.net>
>      > https://lists.sourceforge.net/lists/listinfo/wicket-user
>     <https://lists.sourceforge.net/lists/listinfo/wicket-user>
>      >
>
>
>     --
>     ===================================
>     Ittay Dror
>     Chief architect, openQRM TL,
>     R&D, Qlusters Inc.
>     [EMAIL PROTECTED] <mailto: [EMAIL PROTECTED]>
>     +972-3-6081994 Fax: +972-3-6081841
>
>     http://www.openQRM.org <http://www.openQRM.org>
>     - Keeps your Data-Center Up and Running
>
>
>     -------------------------------------------------------
>     Using Tomcat but need to do more? Need to support web services,
>     security?
>     Get stuff done quickly with pre-integrated technology to make your
>     job easier
>     Download IBM WebSphere Application Server v.1.0.1 based on Apache
>     Geronimo
>     http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
>     <http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 >
>     _______________________________________________
>     Wicket-user mailing list
>     Wicket-user@lists.sourceforge.net
>     <mailto: Wicket-user@lists.sourceforge.net>
>     https://lists.sourceforge.net/lists/listinfo/wicket-user
>
>
>
>
> --
> Wicket 1.2 is coming! Write Ajax applications without touching _javascript_!
> -- http://wicketframework.org


--
===================================
Ittay Dror
Chief architect, openQRM TL,
R&D, Qlusters Inc.
[EMAIL PROTECTED]
+972-3-6081994 Fax: +972-3-6081841

http://www.openQRM.org
- Keeps your Data-Center Up and Running


-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
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