• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Ron McLeod
  • Paul Clapham
  • Bear Bibeault
  • Junilu Lacar
  • Jeanne Boyarsky
  • Tim Cooke
  • Henry Wong
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • salvin francis
  • Frits Walraven
  • Scott Selikoff
  • Piet Souris
  • Carey Brown

Is this statement in RM book still valid or dated ...

Ranch Hand
Posts: 85
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
"Most object-oriented languages do not support the full scope of inheritance defined by the XML schema specification. For this reason, you should use type inheritance in schemas with care."
Ranch Hand
Posts: 2198
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
XML schema allows two types of inheritance; extension and restriction.
Extension is easy to accomplish in, for instance Java, or some other OO language: Just add new fields to the subtype.
Restriction is slightly more complicated, since you cannot remove fields from a superclass in a subclass.
It is possible to override any getters and setters for a field to be removed and make them do nothing, but the field is still there.
Best wishes!
Get meta with me! What pursues us is our own obsessions! But not this tiny ad:
Thread Boost feature
    Bookmark Topic Watch Topic
  • New Topic