[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: Type substitution vs. element substitution (aka substituti

  • From: Boris Kolpackov <boris@c...>
  • To: Farrukh Najmi <farrukh@w...>
  • Date: Mon, 24 Nov 2008 16:42:16 +0200

Re:  Type substitution vs. element substitution (aka substituti
Hi Farrukh,

Farrukh Najmi <farrukh@w...> writes:

> Is there a suggested best practice to choose between type substitution 
> and element substitution for XML schemas that wish to support extension 
> via inheritance?

Conceptually, they are the same thing. With the type substitution
the element name stays the same and the type information is supplied
in the xsi:type attribute. With substitution groups, the type
information is embedded in the element name.

I personally think that the substitution groups approach results
in a cleaner vocabulary. Consider:

<person name="John Doe"/>
<person xsi:type="superman" name="James 007 Bond" can-fly="false"/>
<person xsi:type="batman" name="Bruce Wayne" can-fly="true" wing-span="10"/>

Vs:

<person name="John Doe"/>
<superman name="James 007 Bond" can-fly="false"/>
<batman name="Bruce Wayne" can-fly="true" wing-span="10"/>

Boris

-- 
Boris Kolpackov, Code Synthesis Tools   http://codesynthesis.com/~boris/blog
Open source XML data binding for C++:   http://codesynthesis.com/products/xsd
Mobile/embedded validating XML parsing: http://codesynthesis.com/products/xsde


[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index]


PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.