On Monday, January 31, 2011 3:31:35 AM UTC+1, Milan Cvejic wrote:
>
> /* This is a part where i have problems */
> @Path("fields")
> IsEditor<ListEditor<Label, Editor<Label>>> getFieldsEditor();
>
Keep in mind that the Editor framework is based on code generation, which
means it depends on code inspection (kind of reflection, but at
compile-time).
Here, you tell the generator that you'll use an Editor<> of Label objects,
but which editor exactly? is it a LeafValueEditor<Label> (and it'll generate
the appropriate calls to setValue on edit and getValue on flush)? is it a
ValueAwareEditor<Label> (and it'll generate the appropriate calls to
setValue, setEditorDelegate, and flush)? is it an HasEditorDelegate (and
it'll generate the appropriate calls to setEditorDelegate)? is it a
HasEditorErrors (and it'll generate the appropriate calls to showErrors)?
has it sub-editors (and which ones? so it can generate the appropriate code
to populate and then flush them)?
(note that his is also why people often don't get the Editor framework
working with interfaces: they don't declare their sub-editors in the
interface, and/or add more sub-editors, and/or implement a few other
"special" interfaces on the implementation class; and they wonder why the
Editor framework doesn't see them).
In other words, you have to replace Editor<Label> with a more precise type;
ideally the exact editor you'll use (e.g. MyLabelEditor) but a more general
type (e.g. LeafValueEditor<Label>) can be used if you want more "loose
coupling" (but then beware: if your "runtime" editor implements any other
"special" interface –e.g. HasEditorErrors– that is not declared in the
parent editor, they won't be "seen" by the Editor framework).
Now as for the implementation of your method, for a CellList, use a
HasDataEditor.of(myCellList) (but it's best to, generally lazily, only build
one instance of HasDataEditor for your CellList and then always return it,
rather than creating a new hasDataEditor instance each time getFieldsEditor
is called)
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