Did you get solution to this problem?
On Tuesday, July 31, 2012 3:20:21 AM UTC-4, rkulisas wrote:
> Hi,
>
> I have 4 interfaces:
>
> public interface Ainterface{
> getName()/setName();
> getShape()/setShape();
> ....
> }
>
> public interface Binterface extends Ainterface{
> getWidth()/setWidth();
> getHeight()/setHeight();
> ...
> }
> public interface Cinterface extends Ainterface{
> getRadius()/setRadius();
> ...
> }
> public interface Dinterface {
> Ainterface getA();
> void setA(Ainterface a);
> ...
> }
>
> I have included all interfaces in my AutoBeanFactory.
>
> Question: when I decode/encode Dinterface, how do I know if Ainterface is
> extended by Binterface or Cinterface? How does AutoBean support
> polymorphism?
>
> To make it easier, I can add a variable (for ex, shape) in Ainterface to
> indicate which Binterface or Cinterface I have and then cast Ainterface to
> Binterface/Cinterface. However, I run into ClassCastException. Should I
> have separate interfaces; one that consists Binterface and one consists
> Cinterface? Is there other solution to this problem?
>
> Thank you,
>
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-web-toolkit/-/8WhkOs0iwTAJ.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
