code: public ValueContainer[] getKeyValues(ClassDescriptor cld, Object objectOrProxy) throws PersistenceBrokerException
      {
          return getKeyValues(cld, objectOrProxy, true);
      }
docs: returns an Array with an Objects PK VALUES, with any java-to-sql
  FieldConversion applied. If the Object is a Proxy or a VirtualProxy NO
  conversion is necessary.
  
  @param objectOrProxy
  @return Object[]
  @throws PersistenceBrokerException