no, not exactly. if you havent set a model on the component (or set it to
null) and call getmodel() wicket will search upwards for a model that
implements the compound model interface. look up compound property models on
that wiki page.
Thanks, will do.
One last question:
f) And suppose I have a Label that has to be derived by say some string
> concatenation or formula and OGNL notation will not work. Will new
> Label("foo", fooModel.getFoo() + "bar")kind of hardcoding conflict in
> some subtle way with the concept of detachable models?
write a simple model
private static class foomodel extends abstractreadonlymodel {
private final imodel wrapped;
public foomodel(imodel wrapped) { this.wrapped=wrapped; }
public object getobject() { return wrapped.getobject()+"bar"; }
public void detach() { wrapped.detach(); // important }
}
you do this a lot, so it is very helpful to create a superclass of the
above that helps with setting and detaching. i leave that as an excercise to
you.
Can I assume that doing all this may not be worth it if you are only trying
to derive a simple String value to put into a label - so the "hardcoding"
may be okay for most scenarios?
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