Hi Greg, I see that I have to study more these different cases. =) I need to understand a basic case where I search for data in the business classes, returning a List of objects, for example, and have to bind this list to a TableView. Or even when I want to show a selected item on the TableView on the fields of the form. I'm still trying to understand that =/ But don't mind if you can't give me this kind of explanation. It's a basic question, and I can search on my on ;) Anyway, thanks for answering!
Cheers, Luiz Gustavo 2010/3/29 Greg Brown <[email protected]> > Hi Luiz, > > You are describing WTKX binding, which is a way to associate WTKX values > with Java properties. Data binding is a way to map data structure values to > Pivot component properties. Similar names, but different use cases. > > G > > On Mar 29, 2010, at 9:26 AM, Luiz Gustavo wrote: > > Hi! > > > I'm trying to understand the binding strategy used in pivot, and as I could > see, it maps components declared in WTKX files directly to properties in the > class, using name conventions. Is it Right? > > > > 2010/3/29 Todd Volkert <[email protected]> > >> What he said :-) >> >> Michael, I'd add that to your "simple" requierment, WTKX script might be >> the simplest way to wire up these types of quick event handlers. You'd need >> your user object class to fire events the Pivot way (using Pivot's >> ListenerList). Then, your WTKX could look something like this: >> >> <myPackage:UserData wtkx:id="userData" >> UserDataListener.fooChanged="textInput.setText(userData.getFoo())"/> >> ... >> <TextInput wtkx:id="textInput" >> TextInputTextListener.textChanged="userData.setFoo(textInput.getText())"/> >> >> -T >> >> >> On Mon, Mar 29, 2010 at 8:47 AM, Greg Brown <[email protected]> wrote: >> >>> As you guessed, this type of data binding isn't currently supported. >>> Having worked with data binding systems like this in the past, I find that >>> it can lead to confusing and inefficient code, as too many things are >>> happening in the background when they don't need to be. >>> >>> The load()/store() model used by Pivot maps more closely to how data >>> binding is used in many practical applications (especially those that are >>> REST-based): after making a server query to retrieve your data, you populate >>> your form using the load() method. When you want to save it back to the >>> server, you store() it into your model and upload it back to the server. >>> >>> More dynamic updates (like those you describe) can easily be achieved via >>> event listeners. This way, your application has complete control over what >>> is updated and when. >>> >>> G >>> >>> On Mar 28, 2010, at 11:48 PM, Michael Allman wrote: >>> >>> > Hello, >>> > >>> > I have two related questions on data binding in Pivot. After a lot of >>> searching and digging, I'm pretty sure the answer is "no" to both of these >>> questions. I just want to confirm so we can move on to step 2---how to fix >>> the situation. >>> > >>> > So suppose we have some kind of User object with a r/w "name" property >>> and a Label declared in some WTKX file. My questions are: >>> > >>> > 1. Is there a simple way to bind the Label's "text" property to the >>> User object's "name" property in such a way that as the app user types into >>> the text field the value of the latter property is set to the value of the >>> former (label.text => user.name)? >>> > >>> > 2. Is there a simple way to bind the User object's "name" property to >>> the Label's "text" property in such a way that when the value of the former >>> property is changed, the value of the Label's "text" property is set to the >>> new value of the User object's "name" property? >>> > >>> > This is a very important capability for me, and it's one that I think >>> has a reasonably simple solution. But I'd like to get a Pivot expert's >>> thoughts first. Maybe I'm missing something that's already there, or some >>> other feature that's more powerful than this. >>> > >>> > Cheers, >>> > >>> > Michael >>> >>> >> > > > -- > Att, > > Luiz Gustavo S. de Souza > Analista de Sistemas - Desenvolvedor Java > > http://luizgustavoss.wordpress.com > http://luizgustavoss.blogspot.com > http://twitter.com/lugustso > > > -- Att, Luiz Gustavo S. de Souza Analista de Sistemas - Desenvolvedor Java http://luizgustavoss.wordpress.com http://luizgustavoss.blogspot.com http://twitter.com/lugustso
