Hello Keith, one of my first problems with Castor were the unsigned* data types.
If I understand theXML Schema Spec correctly, the base of this family of data types is unsignedLong, with a maximum of 18446744073709551615. unsignedInt restricts this maximum to smaller values, as do the other unsigned*. To me, a simple solution appears to map unsigned Long onto a Java 'long' resp. derive XSUnsignedLong from XSLong with a restriction of the minimum to 0. Of course, this reduces the maximum possible to Long.MAX. This reduction is the only reason I can see why this has not been implemented. Please let me know if there were others. The other unsigned* then would follow, being derived from unsignedLong if we can afford to waste some bytes of memory, or from the shortest sufficient base type otherwise. I'd very much appreciate support for the unsigned data types. Almost all the XML Schemata I have seen so far use unsignedInt or other unsigned data types exhaustively, to express that an Integer value must not be negative. I suppose this has its origin in the fact that most people defining XML Schemas have - if at all - a programming background in C rather than Java, and C programmers love unsigned data types. Since I doubt we'll succeed to re-educate all the Schema designers, I'd favour a solution that supports unsigned at the price of restricting the maximum for unsignedLong to half the value defined in the Schema spec. The current bypass is to change the XML Schemata if they use unsigned which always gives my a slight grumble in my stomach - I don't like changing basic documents in projects, particularly not if they come from standardization. Apart from that, if we want Castor to be used, we should make it as easy as possible to use it off-the-shelf . Please let me know your opinion - I think I could easily implement the necessary set of classes, and change the respective generator code, at least as a first exercise. Regards, Annette -- Dr. Annette S�ndermann Zenturion GmbH Postfach 1248, 85730 Ismaning Tel.: 089/638 76 706 Fax: 089/638 76 707 Internet: http://www.zenturion.de ----------------------------------------------------------- If you wish to unsubscribe from this mailing, send mail to [EMAIL PROTECTED] with a subject of: unsubscribe castor-dev
