Andrew Paterson wrote:
> [...]
I expected the first occurrence of "<elements>" to fail (neither
<element2> nor <element3> is present) but the file passed validation. Is
it Xerces-J (2.8.0), the schema or my understanding that is incorrect
and, if it is not the Xerces-J, is there a way to do what I want in a
W3C schema?
Note: Validation against a DTD showed the same problem.
Thanks,
Andrew
Hi Andrew,
it is not a bug, it is correct that the schema you've created accepts the
<element> element that contains only the <element1>. As both elements in the
"element_group" group are optional, it matches the non-existing elements after
<element1>.
I'm not a schema expert, but I would create a choice of two, one requiring
element2 and optionally accepting element3, the other requiring element3
(solely). Forgive me any syntax errors, as I am a bit lost without XMLSpy I'm
using at my workplace. But I think you'll understand.
...
<choice>
<sequence>
<element minOccurs="1" name="element2"/>
<element minOccurs="0" name="element3"/>
</sequence>
<sequence>
<element minOccurs="1" name="element3"/>
</sequence>
</choice>
...
Greetings,
Klaus
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