DDS12 — Raise PreconditionNotMet when changing filter expression on registered Obje

Raise a PreconditionNotMet when changing a filter expression on a registered ObjectHome

Summary:

ObjectHome contains a set_filter method to set the filter attribute. This method may only be called before an object home is registered. However the only exception that is thrown is the BadParameter exception. We believe this exception does not cover the fact that the set_filter can be called after the objecthome is registered, as bad parameter is not a good description for the error that should be generated then.

Proposed Resolution:

Raise a PreconditionNotMet Exception when the set_filter method is invoked after the ObjectHome has been registered to a Cache.

see above