[ubl-lcsc] Tiny UBL Extension Example

["Burcham, Bill" <Bill_Burcham@stercomm.com>]

(cc-in LCSC since I know they're grappling with manual extension now too)

Here's an example of a simple extension of the UBL 0p70 vocabulary.  I've
defined a schema module that defines the namespace "third-party".  That
schema imports the UBL Common Aggregate Types schema and defines an
extension to AddressType.  The new (sub)type defined in "third-party" is
called MyAddressType.

I've included two XML instances -- the first, order-ubl.xml is a valid UBL
Order.  The second, order-third-party.xml replaces one of the addresses in
the order with an instance of MyAddressType.  That instance is also a valid
UBL Order -- but of course also includes the "third-party" schema.  Here's
the locality of change:

...
		<cat:Address xsi:type="p3:MyAddressType">
			<cat:ID>token</cat:ID>
... The rest of the Address content (as defined by UBL) ...
			<cat:Country>
				<cat:Code>token</cat:Code>
			</cat:Country>
			<p3:MySpecialStuff>hello</p3:MySpecialStuff>
		</cat:Address>

At the end of the content model you see the added element "MySpecialStuff".
This all looks reasonable to me and addresses the concern I had earlier in
the meeting (look ma -- a pun!).  The extension schema is nice and short too
-- only 13 lines!

-Bill

Attachment: extension-example.zip
Description: Binary data