Problems with deep request structure in web service

Question

I'm having problems when trying to consume an Enterprise Service-like web service in my Web Dynpro application. The web service FindXByElements has a request-structure as follows:
XByElementsQuery
-ProcessingConditions
-QueryHitsMaximumNumberValue
-QueryHitsUnlimitedIndicator
-XSelectionByElements
-ID
-Year
Regarding the structures on level two, the structure ProcessingConditions are of the global data type "WITHOUT_LASTRETURNED_QueryProcessingConditions" and are therefore typed. The structure XSelectionByElements on the other hand are just a "level" in the request structure and are therefore not typed. Both structures have occurrence 1 so they have to be filled with input data.
The code in wdDoInit in the Component Controller looks like this:
QueryXInModel model = new QueryXInModel();
wdContext.nodeRequest_FindXByElements().bind(wdContext.createRequest_FindXByElementsElement(new Request_FindXByElements(model)));
wdContext.currentRequest_FindXByElementsElement().modelObject().setXByElementsQuery(new XByElementsQuery_Sync(model));
//Processing structure
wdContext.currentXByElementsQueryElement().modelObject().setProcessingConditions(new WITHOUT_LASTRETURNED_QueryProcessingConditions(model));
//Selection structure
wdContext.currentXByElementsQueryElement().modelObject().setXSelectionByElements(new XSelectionByElements(model));
The last row generates the following exception:
java.lang.IllegalArgumentException: Cannot perform write operation 'setRelatedModelObject' on target role: Class 'XSelectionByElements' is not compatible to class '$002fWsdlDefinitions$002fWsdlTypes$002fXsdSchema$002fXsdComplexType$005b3$005d$002fXsdSequence$002fXsdElement$005b2$005d$002fXsdComplexType' of target role 'XSelectionByElements' in model class 'XByElementsQuery_Sync'
There seems to be a problem to bind a non-typed structure element to a context node since the processing structure is working fine but the selection structure are not.
What am I doing wrong, anyone got any clues?
/Oskar

Answer 1

Hi
QueryXInModel model = new QueryXInModel();
wdContext.nodeRequest_FindXByElements().bind(wdContext.createRequest_FindXByElementsElement(new Request_FindXByElements(model)));
wdContext.currentRequest_FindXByElementsElement().modelObject().setXByElementsQuery(new XByElementsQuery_Sync(model));
//Processing structure
wdContext.currentXByElementsQueryElement().modelObject().setProcessingConditions(new WITHOUT_LASTRETURNED_QueryProcessingConditions(model));
//Selection structure
wdContext.currentXByElementsQueryElement().modelObject().setXSelectionByElements(new XSelectionByElements(model));
XByElementsQuery
ProcessingConditions
QueryHitsMaximumNumberValue
QueryHitsUnlimitedIndicator
XSelectionByElements
ID
Year
as
          QueryXInModel model = new QueryXInModel();
           Request_FindXByElement  request = new Requst_FindXByElement();
            ProcessCondition   processCond  = new  ProcessCondition(model);
            QueryHitsMaximumNumberValue  qhMaxNumValues = QueryHitsMaximumNumberValue(model);
      QueryHitsUnlimitedIndicator  qhUnLimind = new QueryHitsUnlimitedIndicator(model);
        XSelectionByElements  selecByEle = new XSelectionByElements(model);
                 processCond.set....();                         
                 qhMaxNumValues .set...();
           and so on
                request.set....();
wdcontext.nodeReqestFindX..bind(request);
  in the above during the values you will automatically get the set values .