XOM API for Processing XML with Java

[dvholten AT computer.org]

Hello,

it might excite you to know, that an article (in german) about XOM was 
published in:

   JAVA Spektrum, 03/ 2005, page 50-52, author Marcel Tilly


dvholten
>From stibrany AT cezap.ii.fmph.uniba.sk  Tue May 17 04:02:35 2005
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Subject: [XOM-interest] Checking arguments for correctnes in getters?
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Hello.

I just spent few minutes on finding bug in my test code:
         assertNull(copy.getAttribute("xm:hello", NS));

This test passed regardless of copy element having "xm:hello" attribute 
or not. Problem is with my "xm:hello" argument, correct form should be 
without "xm:" prefix:
        assertNull(copy.getAttribute("hello", NS));

This works and check for hello attribute.

Clearly, this is not bug in XOM, but in my code.

I'd like to ask ... what do you think about checking attribute name for 
correctnes in getters like getAttribute? Was this considered before? If 
yes, why did you chose returning null instead of throwing exception in 
case of invalid attribute name? When I passed invalid URI in 
getAttribute(), I received exception.

I am asking because I am newbie programmer, and I'd like to learn more 
about making design decisions like this.
Thank you for your replies.

-Peter Stibrany