Hi,
Our company defines some XML-Intefaces for exchange eHealth-data. So our
global-schema-Standart
for all interfaces can be only restricted by the specific XML-Schema-Interface.
But i get all the time problems when somebody wants to restrict the
global-schema.
Situation:
Our standart provider_typ, only short-cut
<xs:complexType name="provider_typ">
<xs:sequence>
<!-- here some other elements like provider.type_cd,
that are not relevant for this example-->
<xs:choice maxOccurs="unbounded">
<xs:element ref="person"/>
<xs:element ref="organization"/>
</xs:choice>
</xs:sequence>
</xs:complexType>
So with that type I can have 3 persons, who belongs to 1 organization. Now
somebody
wants to define specific schema for doctors, like one group practice can have
many doctors. So here the specific_provider_typ
<xs:complexType name="specific_provider_typ">
<xs:complexContent>
<xs:restriction base="provider_typ">
<xs:sequence>
<!-- here other specific elements, that
are not relevant for this example-->
<xs:element ref="person" minOccurs="0"
maxOccurs="unbounded"/>
<xs:element ref="organization"/>
</xs:sequence>
</xs:restriction>
</xs:complexContent>
</xs:complexType>
So now in this specific_provider_typ I changed <choice> to <sequence>, now
there have
to be one organization and may be some persons. I think from the XML-view this
is a
valid restriction.
But Xerces (2.6.2) reports an error:
[Error] test.xsd:129:47: rcase-Recurse.2: There is not a complete functional
mapping between the particles.
[Error] test.xsd:129:47: derivation-ok-restriction.5.4.2: Error for type
'specific_provider_typ'. The particle of the type is not a valid restriction
of the particle of the base.
Is it not allowed to change from <choice> to <sequence> or this is Xerces bug ?
I tryed other ways to define global-schema, but without success. Only thing
that works is to define in the global-schema normal <sequence> without <choice>.
Can somebody help ?
Thanks in advance
Evgeny Usorov
www.kbv.de
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