Duplicate schema definitions

Question

I have two different Web service data sources that I'm trying to use within a project that both define the same element (with the same name and namespace!) but define it differently. Since changing the Web services to use a different namespaces isn't an option (I don't have any control over these Web services, this is a constraint I have to live with, unfortunately) I'm trying to figure out how to integrate data from both data sources without complaints about duplicate definitions for the same element.
To simplify things (I think) I created two simple .xsd files , SchemaA and SchemaB both which define the same complex element PersonName in the same namespace but with different sub-elements. SchemaA has PersonName defined with FirstName and LastName subelements. SchemaB defines it with a PersonFullName subelement.
I then create an Application in aqualogic and create three Data Services projects within it, ProjectA and ProjectB and ProjectAB and import SchemaA into ProjectA and SchemaB into ProjectB.
In ProjectA, I create a data service ServiceA with a function that returns an instance of the complex type from SchemaA
In ProjectB, I create a data service ServiceB with a function that returns an instance of the complex type from SchemaB.
In ProjectAB I create a data service ServiceAB and configure and select "Create XML Type" to configure it to return a new XML type (in a separate namespace than the one used for SchemaA and SchemaB) I add a function to return this new XML type. In the XQuery Editor View I drag the function from ServiceA and attempt to drag the function from ServiceB but get an error indicating that "PersonName has already been defined" No surprise really.
It makes sense that I can't have two different definitions for the same type within a single XQuery. So, I create a new data service newServiceA in ProjectA This data service uses ServiceA as input and returns a new XML type in a different namespace than the one used by SchemaA.
I now try to create myServiceAB again. I use newServiceA as an input and ServiceB as an input. In theory, since the output of newServiceA and ServiceB are in different namespaces there shouldn't be a conflict right? Well there is. I don't get an exception at design time but get one when I execute it in the Test View. The exception complains that my type has already been imported.
So now I think that maybe I need to isolate SchemaA and SchemaB into two separate applications(EAR). I create a ApplicationA and ApplicationB, and ApplicationAB.
In ApplicationA I create ServiceA and newServiceA as described above (so newServiceA returns XML that conforms to a schema with its own unique namespace)
I do the same thing in ApplicationB
In ApplicationAB I want to create a data service that combines the output from newServiceA and newServiceB. But it doesn't seem that a data service can reference a data service in another application/EAR.
How do I proceed? Has anyone run into anything like this?

Answer 1

I ran into a similar problem that led me to this topic after searching for an answer... I'm not sure it's exactly the same but I figured I'd post here anyways since it seems very similar.
My co-worker has defined a set of subsets to the gjxdm schema representing person, activity, document... etc. .
These are each being used to create a logical data service which I'm then mapping some data to. The problem I'm having is that ALDSP is complaining about duplicates when I build the project.
The way I have it set up is one LogicalView folder under the project with a schema subfolder and several folders under that representing each version of the jxdm subset corresponding to a data service (i.e. person, activity, etc...). LogicalView also has a .ds for each of these schema subsets. Note that there is NO relation between these logical data services which is why I'm confused there is a conflict...
Here are the errors I'm getting:
ERROR: LogicalView/jxdmPerson.ds
ERROR: jxdmPerson.ds:10:: ld:DataServices/LogicalView/jxdmPerson.ds, line 10, column 8: {err}XQ0035: "Type [QName {http://www.it.ojp.gov/jxdm/3.0.3/proxy/xsd/1.0}time] has been already defined!": name previously imported
ERROR: LogicalView/jxdmActivity.ds
ERROR: jxdmActivity.ds:10:: ld:DataServices/LogicalView/jxdmActivity.ds, line 10, column 8: {err}XQ0035: "Type [QName {http://www.it.ojp.gov/jxdm/3.0.3}DocumentControlMetadataType] has been already defined!": name previously imported
ERROR: LogicalView/jxdmLocation.ds
ERROR: jxdmLocation.ds:10:: ld:DataServices/LogicalView/jxdmLocation.ds, line 10, column 8: {err}XQ0035: "Type [QName {http://www.it.ojp.gov/jxdm/3.0.3}TextType] has been already defined!": name previously imported
I'm assuming this has something to do with the fact that some of the elements of the jxdm schema are defined in multiple subsets that I'm using independently for each logical data service but I'm looking for more details on how this works.
Thanks a lot,
Kevin
EDIT: Oh one other interesting detail is that I can run a test on the Person datasource in "test view" (which I have a few basic mappings completed on) and it works - returns the results I expect.
Message was edited by:
kreg77