[Zope3-Users] ContainerTypesConstraint & ItemTypePrecondition vs contains & containers

[Baiju M]

Hi,
    Why z.a.c.c.ContainerTypesConstraint and
z.a.c.c.ItemTypePrecondition is not deprecated yet? There is
z.a.c.c.contains and z.a.c.c.containers functions.

Which is the preferred/recommended way to set constraints?

Thanks,
Baiju M