Subj : Re: creating JS objects in Java...?
To   : netscape.public.mozilla.jseng
From : user
Date : Thu Feb 17 2005 04:24 pm

that's exactly perfect!
Thank you!

I don't really need the class files as actual files, but maybe it's an 
interesting optimization to store them away and use the later...

I've been looking at the javadocs and I can see roughly what's going on. 
  Are there any examples anywhere where someone is doing this?  I did a 
google search and didn't come up with much.

thanks again - it's perfect.  now if I can just figure out how it works...

=)
-denny-




Igor Bukanov wrote:
> user@domain.invalid wrote:
> 
>> So, if I use the JavaAdapter to make c new javascript class that 
>> inherits from another class an implements a few interfaces, if I use 
>> the Rhino API to get a hold of that object in Java, can I use it right 
>> then and there as an object of those interface types?  Or do I have to 
>> use it as such only in the JS context?
>>
>> Here's what I want to do:  I have an engine that takes Module objects. 
>> Many of these Module objects have been overwritten in Java - 
>> EmailModule, etc.  I would like to be able to have the user author his 
>> own Module using JavaScript, using, presumably, the JavaAdapter.
>>
>> This authoring is done in a little gui.  Say that I have an interface 
>> Foo which has an method Bar() that I want to overwrite.  So, in this 
>> gui he writes "function Bar(){print("HelloWorld");}".  Now, -in Java- 
>> how do I make this Module object with this code overloading the 
>> superclass method Bar() such that I then have a Java Module object 
>> that I can pass around my Java API?
>>
>> Basically, I want a Java function (not a JS function) like this:
>>
>> public Module BuildSubclass(String[] superclasses, String iBarJSCode, 
>> String iSomeOtherMethodJSCode,...)
>> {
>>     Module m = new JavaAdapter(superclasses, iBArJSCode, 
>> iSomeOtherMethodJSCode);
>>
>> return m;
>> }
>>
>> Now I have a Module object that extends or implements an arbitrary 
>> number of classes or interfaces and who has various overloaded methods.
>>
>>
>> How do I do this? I would be incredibly grateful for some help.
> 
> 
> Use class compiler,
> http://www.mozilla.org/rhino/apidocs/org/mozilla/javascript/optimizer/ClassCompiler.html 
> 
> to compile you class to bytecode sublassing the desired class, load the 
> generated bytecode into a class loader and instantiate the resulting class.
> 
> Regards, Igor

.