On Feb 23, 11:15 am, "David Parks" <[email protected]> wrote:
> Thanks for the reply. I understand that the constructor is necessary for the
> JS environment to create the object. But I already have the object created
> and just want to add it to the JS environment. Either by adding a new
> variable that references it or by returning a reference to it from a native
> function call.
Can you just use a plain Java object? Rhino will do the "right" thing
and allow your JavaScript code to access the Java object. So for your
example above, the class would simply be
public class ExampleJSClass {
public void f1() { }
}
--N
>
> Thanks!
> Dave
>
> -----Original Message-----
> From:
>
> dev-tech-js-engine-rhino-bounces+davidparks21=yahoo....@lists.mozilla.org
> [mailto:dev-tech-js-engine-rhino-bounces+davidparks21=yahoo....@lists.mozill
> a.org] On Behalf Of Mike Tardif
> Sent: Monday, February 23, 2009 8:42 AM
> To: [email protected]
> Subject: Re: Not doing something right
>
> On Feb 20, 1:34 pm, "David Parks" <[email protected]> wrote:
> > I'm either doing something wrong or don't understand the functionality of
> > Rhino here.
>
> > I am creating an object in Java and trying to pass it to the JS
> environment
> > via another JS function. I set up this simplified example to try to
> > understand the functionality:
>
> > Scriptable jsObject = Context.toObject(new ExampleJSClass(),
> instanceScope);
> > instanceScope.put("obj0", instanceScope, jsObject);
> > cx.evaluateString(instanceScope, "obj0.fun1();", "test", 1, null);
>
> > static class ExampleJSClass extends ScriptableObject {
> > public void jsConstructor(){ }
> > public String getClassName(){ return "ExampleJSClass"; }
> > public void jsFunction_fun1(){ }
> > }
>
> > Can someone help me understand what I need to do to make this work, or
> what
> > I'm doing wrong? This example throws the exception:
> > org.mozilla.javascript.EcmaError: TypeError: Cannot find default value for
> > object. (test#1)
>
> It is my understanding that you need a ctor -- see below
>
> static class ExampleJSClass extends ScriptableObject {
> public void jsConstructor(){ }
> public void ExampleJSClass() { } // must match the signature of
> your jfConstructor
> public String getClassName(){ return "ExampleJSClass"; }
> public void jsFunction_fun1(){ }
> }
>
> Cheers, Mike
> _______________________________________________
> dev-tech-js-engine-rhino mailing list
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