.Convertor }.

This convertor translates the key to the real instance that the lookup
client sees, if and when needed. For example, if you have a long list
of class names and wish to register default instances of each class,
you might actually register the class name as the key, and supply a
convertor which really loads the class and instantiates it. This makes
it easy to set up the lookup, but nothing is really loaded until
someone asks for it.

</BODY>
</HTML>
