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

Re: Seeking SAXException pattern


mik lernout

>> So, suppose I'm in this callback and something horrible happens; for 
>> example I discover that the content that I'm looking at here is 
>> completely bogus.  I can't throw an Exception of any kind without 
>> screwing up the signature.  So I have this pattern all over my code.
>>

You could also throw a RuntimeException instead of a checked exception, 
if you don't want to wrap your exceptions or subclass SAXException; but 
most people do just wrap their exceptions and unwrap and rethrow them in 
a catch(SAXException) block around the parse.

I think this sort of ugliness is pretty much inherent in a callback API, 
especially in Java.

This is actually a very minor nit in working with SAX. You will likely 
soon the much bigger issues of whether or not the ErrorHandler is 
invoked for user-defined exceptions, and whether endDocument is or is 
not called for which exceptions. None of this is sufficiently 
standardized. All of it varies from one parser to the next. Assume nothing.

-- 
Elliotte Rusty Harold  elharo@m...
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim

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.