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

RE: SAX2: Namespace proposal

  • From: Tim Bray <tbray@t...>
  • To: Miles Sabin <msabin@c...>, David Megginson <david@m...>, xml-dev@i...
  • Date: Mon, 20 Dec 1999 10:12:03 -0800

intern ing
At 05:37 PM 12/20/99 -0000, Miles Sabin wrote:
>But my question is: what's the benefit? Sure you have all the
>Strings in your table intern'ed. But how do you exploit that?

One way is like this.  In Lark, my own private intern table was on
char arrays, not strings.  So when you parse a name out of the doc,
you look it up before you even (expensively) make the String.  The effect
is that you end up not only intern()ing once per unique name, but
only make that many String objects.   The benefit of intern()ing was
for the application not the parser (of course you have to document that
the intern()ing is happening - I forget, was this advertised in SAX1?
Should it be in SAX2?)

I measured this as a huge saving.  But I've heard that the String object 
has gotten a bit smarter in recent Javas, so maybe it's overkill now?
 -Tim

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/ and on CD-ROM/ISBN 981-02-3594-1
To unsubscribe, mailto:majordomo@i... the following message;
unsubscribe 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.