Hello all,
I'm new to this list and to WSDL, web services, axis, xsd, xml, soap,
etc. I'm a total newbie. I'm trying to do a few things over web services
that are usually taken for granted by OO programmers. I have a class
hierarchy, say:
O (abstract base)
O1, O2, O3 (extends O)
I define a web service that provides such a service:
getItem(String id) that returns "O".
But "O" is actually one if O1, O2 or O3. If this was an OO language, I
could say:
if O is actually an O1, type cast it to O1,
if O is actually an O2, type cast it to O2,
etc.
My question is then is this possible with web services? I.e. Can it
return subtypes? I generated a WSDL that includes a definition for "O"
that looks like:
<complexType abstract="true" name="Item">
<sequence>
<element name="ID" nillable="true" type="soapenc:string"/>
<element name="lastMod" nillable="true" type="xsd:dateTime"/>
<element name="metadata" nillable="true" type="tns2:Mets"/>
<element name="relatedItems" nillable="true"
type="impl:ArrayOfItemId"/>
<element name="status" nillable="true" type="xsd:anyType"/>
</sequence>
</complexType>
I hope I'm clear enough. Is there a way to generate WSDL from the
subtypes? I should probably try to try this out but I was wondering if
you have any ideas.
Thanks,
Muzaffer
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