[news.eclipse.platform] Re: Why is it needed for java bean to implement

[Matthew Hall <matthall@xxxxxxxxxxxxxxxxx>]

hao wrote:
> jface databinding framwork has provided a lot of help classes, such as 
> BeansObservables and WritableValue. Why is it still needed for java bean 
> to implement property change support, such as
> <<snip>>

DataBinding is based around the observer pattern.  If there is no 
property change support on your bean, then BeansObservables has no way 
to add property change listeners, and therefore cannot detect when your 
bean properties change.

If property change support is not critical to your application, you can 
use PojoObservables instead.  PojoObservables are identical to 
BeansObservables except that they do not use property change listeners.

Matthew