On Tue, Dec 29, 2009 at 4:39 AM, Hannes Wallnoefer <[email protected]>wrote:
>
> I implemented the annotation based mechanism a half year ago or so,
> here's my announcement on this list:
>
I do appreciate the annotations approach to writing host objects but it's
actually off topic from my original post. I'm looking for two things: what
is the advantage of using a host object vs. a POJO? Also, I'm looking for an
easy-maintenance approach to wrapping my domain classes - this is the bigger
need. Suppose I have this domain class:
public class MyEntity {
private int foo;
public int getFoo() { return foo; }
public void setFoo(int foo) { this.foo = foo;}
public void save() { ... }
}
I could use this directly in JavaScript with the auto wrapping to make it
scriptable. But I prefer to have a wrapper class:
public class JsMyEntity {
private MyEntity delegate;
public int getFoo() { return delegate.getFoo(); }
public void setFoo(int foo) { delegate.setFoo(foo); }
}
So if JsMyEntity is in my "JavaScript API" package, I can "find usages" of
MyEntity.setFoo() and see that the method is exposed to the JS API. Also, as
you can see, I have restricted access to the MyEntity.save() method by
omitting it from the wrapper. The problem is that this approach is difficult
to maintain especially with collections. I'd like a simpler wrapper class
that automatically forwards to the delegate except perhaps when a delegate
method is marked with an annotation prohibiting JS access. What I'm not
clear on is if I can use features of Scriptable or ScriptableObject to
create such a wrapper.
I've experimented with ScriptableObject and I see that I can override get
and filter the method name, but the method (FunctionObject?) ultimately
comes from the same object and I want it to come from the delegate.
--
Daryl Stultz
_____________________________________
6 Degrees Software and Consulting, Inc.
http://www.6degrees.com
mailto:[email protected]
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