Java Generics - "super" keyword usage

Hi All 

This has been driving me insane. I am pretty sure it is very simple and hopefully someone can clear this up for me. What is wrong with the following:

public <T super IColumn> ICompactSerializer<T> serializer()
    {
        return new MyColumnSerializer();
    }

class MyColumnSerializer implements ICompactSerializer<MyColumn>
{
    public void serialize(MyColumn column, DataOutputStream dos) throws IOException
    {
    }

    public MyColumn deserialize(DataInputStream dis) throws IOException
    {
        return null;
    }
}

It complains about the "super" keyword. However the same compiles with the "extends" keyword. Now this method is defined in an interface called IColumn. I want any class that implements this serializer() method to pass its type to the ICompactSerializer template argument. Is this doable and if so what am I doing wrong?

Thanks
Avinash

_________________________________________________________________
Can you find the hidden words?  Take a break and play Seekadoo!
http://club.live.com/seekadoo.aspx?icid=seek_wlmailtextlink
===================================
This list is hosted by DevelopMentor®  http://www.develop.com

View archives and manage your subscription(s) at http://discuss.develop.com