[BBB-DEV] Re: Re: Re: org.jdesktop.beansbinding.Property should be interface

[Peter Levart <peter.levart@marand.si>]

On Wednesday 15 July 2009 15:35:32 Witold Szczerba wrote:
> By the way: what does "Props" mean? Looks like shortcut for
> "Properties" while this abstract is going to describe a single
> property.

On my WhiteBoard wiki page I describe it as a "container" for "this" Property. It is a workarround for the fact that Property is not an interface. The name "Props" is not very informative, I know.

public interface Props<S, V>
{
Property<S, V> this$();
}

The idea is that Props interface be extended by individual interfaces that hold "references" for other properties. Refering to page at:

http://kenai.com/projects/betterbeansbinding/pages/PeterLevartWhiteBoard

The following is equivalent:

Person.P$.this$() == ObjectProperty.<Person>create()
Person.P$.address().this$() == BeanProperty.<Person, Address>create("address")

While for "leaf" properties, there's no container:

Person.P$.address().city() == BeanProperty.<Person, String>create("address.city")

If Property was an interface It could take the place of Props and I could write consistently:

Person.P$ == ObjectProperty.<Person>create()
Person.P$.address() == BeanProperty.<Person, Address>create("address")
Person.P$.address().city() == BeanProperty.<Person, String>create("address.city")

Peter