RE: XML Schema types to Java

Dennis,
 
Great work! I see that you have put a lot of effort into this.
Naresh

	-----Original Message-----
	From: Dennis Sosnoski [mailto:[email protected]] 
	Sent: Sunday, March 09, 2003 5:42 PM
	To: [email protected]
	Subject: Re: [xmlpull-dev] XML Schema types to Java
	
	
	Aleksander Slominski wrote:
	
	>Naresh Bhatia wrote:
	>
	>>Anyone know of a good library to convert XML Schema types to
Java and 
	>>back. Specifically I am trying to convert xsd:dateTime to 
	>>java.util.Date and back.
	>>    
	>>
	>i would check castor.exolab.org as it must have something like
that 
	>implemented and it is actively developed (so well tested) and
has good 
	>open source license (so you can use it in your apps and not
worry about 
	>viral licensing ...) otherwise check also JaxME and other XML 
	>databinding libraries as there is many of them currently - one
list of 
	>available packages is at the end of Dennis Sosnoski article: 
	
>http://www-106.ibm.com/developerworks/library/x-databdopt2/#resources
	>
	I don't know how well Castor's code has really been tested - I
tried a 
	few experiments when I was doing my performance tests and found
it 
	rejected int values with a leading plus sign ("+3"), which are
perfectly 
	legal in Schema. It looked like they were just using the
standard Java 
	library code for at least this conversion.
	
	There are quite a few subtle difference between the Java library

	implementations and the Schema standard. This is especially true
for the 
	date/time handling, where Schema calls for a proleptic Gregorian

	calendar (one that applies back before the actual origin of the 
	calendar) while Java implements the Gregorian calendar with a 
	discontinuity. This abviously won't matter to most people -
dates from 
	1600 and earlier aren't exactly common in modern business
documents! - 
	but it's obviously best to have a library implement the proper
handling.
	
	I've got a set of conversions implemented in my JiBX code that
I've been 
	testing in preparation for the upcoming beta. The code is now in
CVS at 
	
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jibx/distrib/build/src/or
g/jibx/runtime/Utility.java, 
	with the JUnit tests at 
	
http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/jibx/distrib/build/src/te
st/jibx/runtime/UtilityTest.java 
	Besides being tested vs the Schema specification (modulo any 
	misinterpretations by me), both the int parsing and the
date/time 
	conversions in both directions are considerably faster than the
Java 
	versions.
	
	  - Dennis
	
	
	
Yahoo! Groups Sponsor	

 
<http://rd.yahoo.com/M=247865.3003379.4374531.2848452/D=egroupweb/S=1706
030390:HM/A=1482387/R=0/*http://ads.x10.com/?bHlhaG9vaG0xLmRhd=104724992
0%3eM=247865.3003379.4374531.2848452/D=egroupweb/S=1706030390:HM/A=14823
87/R=1=1047249920%3eM=247865.3003379.4374531.2848452/D=egroupweb/S=17060
30390:HM/A=1482387/R=2> 	
 
<http://us.adserver.yahoo.com/l?M=247865.3003379.4374531.2848452/D=egrou
pmail/S=:HM/A=1482387/rand=717794500> 	

	To unsubscribe from this group, send an email to:
	[email protected]
	
	
	
	Your use of Yahoo! Groups is subject to the Yahoo! Terms of
Service <http://docs.yahoo.com/info/terms/> .