Hi Grant, On 12/10/09 3:16 AM, "Grant Ingersoll" <gsing...@apache.org> wrote:
> > I'm not sure this works, as you need to specify the type of the subfield, > which is what Option B does. I don't think inheritance is the what is going > on here, more like delegation, and that isn't necessarily needed for all > implementations, but just happens to be how it is done for the example in > question. People implementing FieldTypes could certainly just encode things > the way they want using their own internal mechanism (or the existing ones, > but w/o configuration). Well if that doesn't work then option A doesn't work either because it doesn't specify the subFieldType. I'm also not sure that option B works too because what if there are multiple subFieldTypes? For instance, what if I want to store one of the polyField's subTypes as a tint,and the other as a regular int? How would that be specified. Either way you need some combination of A + B, or (my preference) B + C. Cheers, Chris ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Chris Mattmann, Ph.D. Senior Computer Scientist NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA Office: 171-266B, Mailstop: 171-246 Email: chris.mattm...@jpl.nasa.gov WWW: http://sunset.usc.edu/~mattmann/ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Adjunct Assistant Professor, Computer Science Department University of Southern California, Los Angeles, CA 90089 USA ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
