Re: How about extends UiBinder with data bind features?

But i like data binding and it looks the code is much clean and
clearly so I created it.

I am learning the Editor framework now and i still feel something
complex for its object relationship. Maybe i need more learning :)

It has overhead, but i think it it is not as big problem as it will.
also, the UiDataBinder borrows ideas from the Editor of flush/save
operation when some widget/bean not support change event.

On Oct 28, 9:46 am, Thomas Broyer <t.bro...@gmail.com> wrote:
> On 18 oct, 14:26, wangzx <wangzaixi...@gmail.com> wrote:
>
> > Yes, the design is not the same as the editor framework:
> > 1. It is an extension of the uibinder, using declaration style
> > programming.
> > 2. The data binding is synchronized when data changed or ui changed,
> > no need for "flush" and "save" operation when the model supported.
>
> This means:
>  - you're listening to events on each "bound" widget
>  - you're firing events to update your widgets when your "model"
> changes
> This has significant overhead, for actually minimal added value (with
> editors, if you want to look at the "modified object", you just ask
> for it –flush– and only then the values are actually "extracted" from
> the UI fields and the object is modified; actually in many cases,
> you'll give the object to the editor and "forget" about it, until you
> need it back and then call flush()).
> Note that the "firing of events to update the widgets" is there with
> editors too, and supported by the RequestFactoryEditorDriver (but will
> only update when RequestFactory fires an UPDATE event).
>
> This also means you have to use widgets only, i.e. you cannot bind to
> an HTML element (or it would drastically complexify the
> "UiDataBinder"), whereas with editors you can actually create a simple
> Editor that's backed by a DOM element without the Widget overhead;
> e.g.:
> class InputElementEditor implements LeafValueEditor<String> {
>    private final InputElement input;
>    public InputElementEditor(InputElement input) { this.input =
> input; }
>    public String getValue() { return input.getValue(); }
>    public void setValue(String value) { input.setValue(value); }}
>
> class CheckboxEditor implements LeafValueEditor<Boolean> {
>    private final InputElement input;
>    public InputElementEditor(InputElement input) { this.input =
> input; }
>    public Boolean getValue() { return input.isChecked(); }
>    public void setValue(Boolean value) { input.setChecked(value ==
> null ? false : value.booleanValue()); }
>
> }

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