XOM API for Processing XML with Java

["Daniel Rohlfs" <drohlfs AT gmx.net>]

Hi, I'm new to this list and new to XOM (2+ Weeks now).

This is something I can't figure out.

I want the root element of my xml to look like this:
<root xsi:noNamespaceSchemaLocation="schema.xsd" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>

Adding the namespace declaration poses no problems with:
root.addNamespaceDeclaration("xsi", 
"http://www.w3.org/2001/XMLSchema-instance";);

But the schema declaration, I can't get this to work.
If I add it like this:
Attribute schemaDecl = new Attribute("xsi:noNamespaceSchemaLocation", 
"assetpos.xsd");
root.addAttribute(schemaDecl);

I get this error message:
nu.xom.NamespaceConflictException: Attribute prefixes must be declared.
at nu.xom.Attribute._setNamespace(Attribute.java:516)
at nu.xom.Attribute.<init>(Attribute.java:168)
at nu.xom.Attribute.<init>(Attribute.java:70)

When I try it like this: 
Attribute schemaDecl = new Attribute("xsi", "noNamespaceSchemaLocation", 
"assetpos.xsd", Attribute.Type.UNDECLARED);
root.addAttribute(schemaDecl);
I get the error message:
Unprefixed attribute xsi cannot be in default namespace 
noNamespaceSchemaLocation

When I try to set the prefix like this:
root.setNamespacePrefix("xsi");
I get the error message:
nu.xom.NamespaceConflictException: xsi conflicts with existing prefix

If I try to get the prefix like this:
String prefix = root.getNamespacePrefix();
Then it returns a null value.

Any help would be heavily appreaciated, as I really can't figure this out. 
I'm convinced it's not a XOM problem, but a problem of my stupidity... and 
well I've hit a wall as I'm out of ideas now. And google doesn't tell me much 
to the topic as well.

Thanks a lot in advance.

Daniel 


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