Re: DOMImplementationRegistry configuration

/Michael Glavassevich/:

> When the system property isn't set, DOMImplementationRegistry will look 
> for a file called 
> META_INF/services/org.w3c.dom.DOMImplementationSourceList in the jars on 
> the classpath to determine the class name. The one in xercesImpl.jar 
> already points to org.apache.xerces.dom.DOMXSImplementationSourceImpl.
Yes, I'm aware of that mechanism and I've wondered why is the 
|System.setProperty(DOMImplementationRegistry.PROPERTY, 
"org.apache.xerces.dom.DOMXSImplementationSourceImpl")| call ever 
issued in the examples - to ensure the original Xerces 
implementation is in use and not other like the Sun's JDK 5 supplied 
one?
> If 
> you have no control over the environment and you absolutely need to use 
> the Xerces implementation I suppose you could use reflection and then 
> query the DOMImplementationSource [1] directly.
> [1] 
> http://xerces.apache.org/xerces2-j/javadocs/api/org/w3c/dom/DOMImplementationSource.html
You're right. I've overlooked this: using direct construction I'll 
get DOMImplementationSource and not a DOMImplementationRegistry 
instance.
--
Stanimir