ISSUE-67
using xsi:type to assert Type Substitution
- State:
- CLOSED
- Product:
- Advanced
- Raised by:
- Paul Downey
- Opened on:
- 2006-07-26
- Description:
Pattern from Faisel Waris which employs xsi:type to perform type substitution. """ <complexType name="Part" > <sequence> <element name="Number" type="string" /> </sequence> </complexType> <complexType name="Assembly" /> <sequence> <element name="Part" type="tns:Part" minOccurs="0" maxOccurs="unbounded" /> </sequence> </complexType> <element name="Assembly" type="tns:Assembly" /> ... This can be easily extended in an OO way as follows: <complexType name="Part2" > <complexContent> <extension base="tns:Part"> <sequence> <element name="Description" type="string" /> </sequence> <extension> </complexContent> </complexType> At runtime we can use "Type Substitution" as follows: <Assembly xmlns="…" xmlns:tns="…" xmlns:xsi="…"> <Part> <Name>p1</Name> </Part> <Part xsi:Type="tns:Part2"> <Name>p2</Name> <Description> extended part </Description> </Part> </Assembly> """ http://lists.w3.org/Archives/Public/public-xsd-databinding/2006Jul/0014.html
- Related emails:
- ISSUE-67: using xsi:type to assert Type Substitution (from dean+cgi@w3.org on 2006-07-26)
- Minutes: XML Schema Patterns for Databinding F2F 31st July - 1st August 2006 (from paul.downey@bt.com on 2006-08-01)
- Agenda: XML Schema Patterns for Databinding Telcon 8 August 2006 (from paul.downey@bt.com on 2006-08-07)
- Agenda: XML Schema Patterns for Databinding Telcon 22 August 2006 (from paul.downey@bt.com on 2006-08-21)
- Agenda: XML Schema Patterns for Databinding Telcon 5 September 2006 (from paul.downey@bt.com on 2006-09-03)
- Minutes: XML Schema Patterns for Databinding Telcon 5 September 2006 (from paul.downey@bt.com on 2006-09-05)
- Agenda: XML Schema Patterns for Databinding Telcon 12 September 2006 (from paul.downey@bt.com on 2006-09-11)
- Agenda: XML Schema Patterns for Databinding Telcon 19 September 2006 (from paul.downey@bt.com on 2006-09-18)
- Minutes: XML Schema Patterns for Databinding Telcon 19 September 2006 (from paul.downey@bt.com on 2006-09-19)
- Minutes: XML Schema Patterns for Databinding F2F 5th-6th October 2006 (from paul.downey@bt.com on 2006-10-07)
Related notes:
2006-10-05: known limitation of several tools, eg ADB 1.0, accepted as an Advanced pattern