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

Re: [Q] How should SAX support Namespaces?

  • From: Lars Marius Garshol <larsga@i...>
  • To: "XML Developers' List" <xml-dev@i...>
  • Date: Wed, 22 Jul 1998 18:13:50 +0200

Re: [Q] How should SAX support Namespaces?

* David Megginson
|
| 3. Revised org.xml.sax.AttributeList and org.xml.sax.DocumentHandler
|    to include the namespace as a separate (possibly-null) argument:
| 
|    startElement("urn:www.megginson.com", "doc", ...)
|    endElement("urn:www.megginson.com", "doc", ...)

I think this is the way to go, but perhaps it would be better to use 
an object that encapsulates all the information about a namespace and 
then pass that object as the first parameter instead?

Something like this:

  public interface Namespace {
    String getURI();
    String getPrefix();
    String getSchemaURL();
    String toString(); // Convenience alias for getURI()
  }
 
If we require the same Namespace object to be passed for every
occurrence of a construct in that Namespace this is also efficient,
both in terms of parameter construction and namespace comparison.
Implementations will have to map the namespace prefix to an object
anyway, the only difference will be the type of said object.

I also agree with Ron that there should be a namespace declaration
callback. Supporting alternative 1 for backward compatibility seems
difficult to me.

--Lars M.


xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i...
Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/
To (un)subscribe, mailto:majordomo@i... the following message;
(un)subscribe xml-dev
To subscribe to the digests, mailto:majordomo@i... the following message;
subscribe xml-dev-digest
List coordinator, Henry Rzepa (mailto:rzepa@i...)


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.