lundi 30 mars 2015

Unable to understand what kind of design pattern this is?

I am not able to understand the below design. Let's assume the below classes and interfaces



interface A
{
....
}
class B implements A
{
....
}
class C extends B implements A
{
...
}


I found this design in one of the IBM frameworks (wcs order framework). So here why class C needs to implement A ?


What are the different scenarios in which you can use this design?


What type of design pattern is this?


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