I saw that I had some typos in one of the classes, however I still couldnt
get them to work until i moved them both into the same Class Loader. After I
do a little refactoring, I will post it all here and on my website for
others to see.
Thanks again,
Chris
----- Original Message -----
From: "Juozas Baliuka" <[EMAIL PROTECTED]>
To: "BCEL Users List" <[EMAIL PROTECTED]>
Sent: Monday, November 25, 2002 2:38 PM
Subject: Re: making classes available
>
> You can use reflection ( "method.setAccessable(true)" ) to call
> "defineClass" if you need to cast instances of generated class.
> UIGenerator will define generated class in MYNEWComboBoxUIGenerator.
>
> ----- Original Message -----
> From: "Chris Houghten" <[EMAIL PROTECTED]>
> To: "BCEL Users List" <[EMAIL PROTECTED]>
> Sent: Monday, November 25, 2002 9:23 PM
> Subject: Re: making classes available
>
>
> > I did call defineClass, but don't know if I am using an appropriate
> > Classloader.
> > I am working from an article that was in the February 2002 issue Java
> > Developer's Journal by Norman Richards.
> >
> >
> > here is a portion of my UIGenerator class:
> >
> > public class MYNEWComboBoxUIGenerator extends ClassLoader implements
> > Constants {
> > private InstructionFactory _factory;
> > private ConstantPoolGen _cp;
> > private ClassGen _cg;
> >
> > public ComponentUI generate(UIManager.LookAndFeelInfo lf, JComponent
> comp)
> > {
> > new GuardianComboBoxUI$GuardianComboPopupGenerator().generate(lf,
> > comp);
> > new
> GuardianComboBoxUI$PropertyChangeHandler2Generator().generate(lf,
> > comp);
> > String lfName =
> > lf.getClassName().substring(lf.getClassName().lastIndexOf(".") + 1,
> > lf.getClassName().length() - 11);
> > String lfPackage = lf.getClassName().substring(0,
> > lf.getClassName().lastIndexOf("."));
> > String className = "combo_research.Guardian" + lfName +
> "ComboBoxUI";
> > String superClassName = lfPackage + "." + lfName + "ComboBoxUI";
> > //need to get rid of last node in classname
> > _cg = new ClassGen(className, superClassName, "", ACC_PUBLIC |
> > ACC_SUPER, new String[] { });
> > _cg.addEmptyConstructor(ACC_PUBLIC);
> > _cp = _cg.getConstantPool();
> > _factory = new InstructionFactory(_cg, _cp);
> > // createMethod_0();
> > createMethod_1(className);
> > createMethod_2(className);
> > createMethod_3(className);
> > createMethod_4(className);
> > createMethod_5(className);
> > createMethod_6(className);
> > byte[] data = _cg.getJavaClass().getBytes();
> > Class c = defineClass(data, 0, data.length);
> >
> >
> >
> > ----- Original Message -----
> > From: <[EMAIL PROTECTED]>
> > To: "BCEL Users List" <[EMAIL PROTECTED]>
> > Sent: Monday, November 25, 2002 1:58 PM
> > Subject: Re: making classes available
> >
> >
> > > Hi Chris,
> > >
> > > Once you have the bytecode for the class, you can use
> > ClassLoader.defineClass to
> > > make it available to the JVM. Make sure you're using an appropriate
> > ClassLoader.
> > >
> > > God bless,
> > > -Toby Reyelts
> > >
> > > > What I need is an example of generating a class at runtime and just
> > making it
> > > > available to be accessed at any future point instead of returning an
> > instance of
> > > > it immediately.
> > >
> > > --
> > > To unsubscribe, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > > For additional commands, e-mail:
> > <mailto:[EMAIL PROTECTED]>
> > >
> >
> >
> > --
> > To unsubscribe, e-mail:
> <mailto:[EMAIL PROTECTED]>
> > For additional commands, e-mail:
> <mailto:[EMAIL PROTECTED]>
> >
>
>
> --
> To unsubscribe, e-mail:
<mailto:[EMAIL PROTECTED]>
> For additional commands, e-mail:
<mailto:[EMAIL PROTECTED]>
>
--
To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]>
For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
