RE: [Jython-dev] Class inheritance bug

[Carmona P. D. <DPe...@fc...>]

I forgot in my snippet to add the public keyword to the Java classes.

I have tried the Samuele's patch, and doesn't solve my problem.

> -----Mensaje original-----
> De: jyt...@li...
> [mailto:jyt...@li...]En nombre de Carmona
> Perez, David
> Enviado el: viernes, 07 de mayo de 2004 9:21
> Para: JyDev (E-mail)
> Asunto: RE: [Jython-dev] Class inheritance bug
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> The problem is:
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> Java code:
> ------------
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> package mypackage;
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> class Base {
> 	...
> }
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> class Derived extends Base {
> 	void newMethod() {
> 	}
> }
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> class AccessedFromJthon {
> 	static Derived getData() {
> 		return new Derived();
> 	}
> }
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> Jython code:
> ------------
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> def myFunction():
> 	from mypackage import AccessedFromJthon
> 	data =3D AccessedFromJthon.getData()
> 	print 'type=3D'+str(type(data))
> 	data.newMethod()
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> The first time I call myFunction(), everything is ok and
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> 	type=3Dmypackage.Derived
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> is printed.
> Next invocations of myFunction() print
> 	type=3Dmypackage.Base
> and the call to newMethod fails, Jython complains that=0D
> mypackage.Base has no attribute called 'newMethod'.
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> > -----Mensaje original-----
> > De: jyt...@li...
> > [mailto:jyt...@li...]En nombre de=0D
> Ype Kingma
> > Enviado el: jueves, 06 de mayo de 2004 19:47
> > Para: jyt...@li...
> > Asunto: Re: [Jython-dev] Class inheritance bug
> >
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> >
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> >
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> > David,
> >
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> > you wrote:
> > > I have also seen another bug, that seems similar to this one.
> > >
> > > I have a static class method that returns an object.
> > > Jython thinks the class of the object returned is its base
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> > class, so I
> >
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> > That is unusual. Could you be more specific?
> >
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> > > cannot call any method added in the derived class.
> > >
> > > Does anybody know a workaround?
> >
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> > Did you try Samuele's workaround:
> >
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> > TheDerivedClass.theAddedMethod(returnedObject)
> >
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> > ?
> > It should not matter that the object is returned by a static method.
> >
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> > Regards,
> > Ype
> >
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> >
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> >
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> >
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