wood burning stoves 2.0*
The moose likes XML and Related Technologies and the fly likes Extending xsd schema with Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Engineering » XML and Related Technologies
Bookmark "Extending xsd schema with "choice" model group" Watch "Extending xsd schema with "choice" model group" New topic

Extending xsd schema with "choice" model group

Jaikiran Pai

Joined: Jul 20, 2005
Posts: 9963

I am playing with some xsd stuff these days. One of the things i am trying to do is extend an existing xsd to provide more elements in the new one. The base xsd looks like this:

The extended xsd is as follows:

So here i have a "coloursType" with a choice of "red" and "blue" and the extended "more-coloursType" has the additional "dark-red" and "dark-blue". Then in my xml i am trying to do this:

So in the xml, i am trying to use the extended "more-coloursType" and specifying a "dark-red" value. But this fails validation, with a message saying that "dark-red" is not allowed in this place. It starts working if i first have a normal colour (either red or blue) and then have dark-red:

My understanding was with this kind of extension, with the "choice" elements i would have something like:

but this doesn't seem to be the case. Am i missing something? Any changes that i'll have to make to my xsd to allow:

[My Blog] [JavaRanch Journal]
jQuery in Action, 2nd edition
subject: Extending xsd schema with "choice" model group
Similar Threads
Help in creating XML Schema
How can I define XML schema for this XML
xml validation failure
XML Schema, choice and other stuff
How to modify XSD that allows XML to hold the base and derived element types in any order?