protected abstract SelectionKey register (AbstractSelectableChannel ch, int ops, Object att)

Registers the given channel with this selector.

This method is invoked by a channel's register method in order to perform the actual work of registering the channel with this selector.

Parameters:

ch		The channel to be registered
ops		The initial interest set, which must be valid
att		The initial attachment for the resulting key

Returns:  A new key representing the registration of the given channel with this selector