[Zope] CatalogAware

[Tom Deprez]

I've a problem which I can't solve.

I made a small ZClass and has CatalogAware as base class.

However, when I add an instance of this ZClass in a folder, and when I've a
ZCatalog (id: TestCatalog) then this instance isn't added in the list of
'TestCatalog'. I thought that a CatalogAware Class just could do this...

a) Am I missing here something? 
b) I'm not quite sure, but is this adding to a Catolog done automatically
or do you have to specify somewhere in which catalog instance (here
TestCatalog) the object has to be listed? How can I do this?

Thanks in advance,

Tom.