My only question is why cant I extend java.awt.Color?
I tried JMColor.prototpe.foo = function () {
print('bar');
};
and JMColor.foo = function () {
print('bar');
};
On Mar 4, 12:21 am, Joseph Montanez <[email protected]> wrote:
> I just spent an hour actraully trying to figure this out maybe I am
> doing it wrong but it works.
>
> importPackage(java.awt);
>
> function JMColor(r,g,b) {
> // the same as calling super()
> var color = JavaAdapter(Color(r,g,b));
> // Do your contstructor stuff here
>
> // return the object
> return color;}
>
> var col = new JMColor(0.75,0.5,0.5);
> print(col);
> //java.awt.Color[r=191,g=128,b=128]
>
> On Mar 3, 11:32 pm, Joseph Montanez <[email protected]> wrote:
>
>
>
> > If your using the adapter with an empty javascript object then thats a
> > no no.
>
> > Just use:
> > new JavaAdapter(javax.swing.OverlayLayout);
>
> > On Mar 3, 9:53 pm, Cameron McCormack <[email protected]> wrote:
>
> > > [Reposted from m.d.t.js-engine where I mistakenly posted it first.]
>
> > > Hi.
>
> > > I want to, from script, extend a Java class that has no default
> > > constructor. Specifically, I want to extend javax.swing.OverlayLayout
> > > so that I can override some of its methods. I tried:
>
> > > Rhino 1.7 release 3 PRERELEASE 2009 03 04
> > > js> new JavaAdapter(javax.swing.OverlayLayout, { })
> > > Exception in thread "main" java.lang.NoSuchMethodError:
> > > javax.swing.OverlayLayout: method <init>()V not found
> > > at adapter1.<init>(<adapter>)
> > > ...
>
> > > so obviously I need a way to provide a constructor in my class so that I
> > > can call super and provide an argument. Is there a way I can do this,
> > > or will I have to extend OverlayLayout from Java?
>
> > > Also, having the NoSuchMethodError quit the shell doesn't look good.
> > > Maybe there can be a 'catch (NoSuchMethodError e)' at
> > > src/org/mozilla/javascript/JavaAdapter.java:216 that throws some kind of
> > > Exception.
>
> > > Thanks,
>
> > > Cameron
>
> > > [PS: Actually, after I misposted this originally in m.d.t.js-engine, I
> > > realised that I don't actually want to extend OverlayLayout; I need to
> > > call setAlignmentX() on the components in the container. But extending
> > > a class with no default constructor is something I've wanted to do
> > > before, so the question still remains.]
>
> > > --
> > > Cameron McCormack ≝http://mcc.id.au/
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