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Displaying a JPanel sublass in VE [message #16080]

Thu, 22 January 2004 06:03

Eclipse User

Originally posted by: magnus.fagerqvist.lm.se

Hello!

I have a class (C1) which extends JPanel. This class is in turn extended by
another class (C2) which then also
should be a JPanel. I'm having trouble to visually display the properties of
the C2 class in VE (especially the
ones that are set in class C1's initialize method). The class structure
looks like this.

public class C1 extends JPanel {
public C1() {
initialize();
}

// bla..bla..bla
}

public class C2 extends C1 {
public C2() {
super();
initialize();
}

// bla...bla...bla
}

regards
/magnus

Re: Displaying a JPanel sublass in VE [message #16093 is a reply to message #16080]

Thu, 22 January 2004 08:11

Eclipse User

Magnus,
When you say "I'm having trouble to visually display the properties of the
C2 class in VE", do you mean the properties don't show up in the property
sheet viewer? If this is the case you may have problem if you have defined a
beaninfo class for C1 and C2. In each beaninfo class you must provide a
getAdditionalBeanInfo method that returns your super's beaninfo. Something
like this:
public BeanInfo[] getAdditionalBeanInfo(){

try {

return new BeanInfo[] {

Introspector.getBeanInfo(getBeanClass().getSuperclass())

};

} catch (IntrospectionException e) {

return new BeanInfo[0];

}

}

If you don't have beaninfo, it must be another problem. Perhaps you can
attach your source code and I can try to recreate the problem.

Regards...
Peter Walker

"Magnus Fagerqvist" <magnus.fagerqvist@lm.se> wrote in message
news:buoanl$fp5$1@eclipse.org...
> Hello!
>
> I have a class (C1) which extends JPanel. This class is in turn extended
by
> another class (C2) which then also
> should be a JPanel. I'm having trouble to visually display the properties
of
> the C2 class in VE (especially the
> ones that are set in class C1's initialize method). The class structure
> looks like this.
>
> public class C1 extends JPanel {
> public C1() {
> initialize();
> }
>
> // bla..bla..bla
> }
>
> public class C2 extends C1 {
> public C2() {
> super();
> initialize();
> }
>
> // bla...bla...bla
> }
>
> regards
> /magnus
>
>

Re: Displaying a JPanel sublass in VE [message #16502 is a reply to message #16080]

Thu, 22 January 2004 17:42

Eclipse User

Hi Magnus,

Hi Magnus,

Is C1 abstract ? Does the problem become fixed if you remove the abstract
keyword ?

Best regards,

Joe

Re: Displaying a JPanel sublass in VE [message #578974 is a reply to message #16080]

Thu, 22 January 2004 08:11

Eclipse User