> With absolutely NO knowledge whatsoever, I will take a poke in the dark.
:) that doesn't stop me either...
> Since in Java, URI is not a subclass of String, it make sense that anyURI in XSD should not be a subclass of String.
That's probably (see above) because you don't want URI inheriting all
the methods in String.
>
> More abstractly, I could see the argument that anyURI by nearly coincidence is a string representation of a URI but really is its own structured type (protocol + host + file part + query ... ) similar as one might say a Point object could have a String representation "X,Y" but that doesn't make it a subclass of String, or even integer could be but isn't a subclass of string.
>
Yeah that seems reasonable... what I don't understand is why '' (empty
quotes) is a legal xs:string and xs:anyURI, when is that useful?
Every time I end up using xs:token or a custom 'non-empty-string'
type...
--
Andrew Welch
http://andrewjwelch.com
