[gt-user] How to define complex data structures in MathService

[Schulz, Henrik]

Dear all,

I try to modify the MathService example in such a way that there is a function 
which adds not only scalar numbers but vectors.

For that purpose I defined a VectorType in Math.wsdl:

<xsd:element name="VectorType">
 <xsd:complexType>
  <xsd:sequence>
   <xsd:element name="x" type="xsd:int"/>
   <xsd:element name="y" type="xsd:int"/>
   <xsd:element name="z" type="xsd:int"/>
  </xsd:sequence>
 </xsd:complexType>
</xsd:element>

The function the service should provide is defined as follows:

<xsd:element name="VectorAdd" type="xsd:VectorType"/>
<xsd:element name="VectorAddResponse">
 <xsd:complexType/>
</xsd:element>

I have defined this method in the java source code of the service and I have 
also defined a class VectorType() in such a way:

package org.globus.examples.services.core.first.impl;
public class VectorType{
    private int x;
    private int y;
    private int z;

    public VectorType(){
    }

    public VectorType(
           int x;
           int y;
           int z) {
           this.x = x;
           this.y = y;
           this.z = z;
    }
...

When I try to build the service I always get this error message:

generateStubs:
     [echo]  Generating stubs from Math_service.wsdl
     [java] java.io.IOException: Type 
{http://www.w3.org/2001/XMLSchema}VectorType is referenced but not defined.
     [java]     at 
org.apache.axis.wsdl.symbolTable.SymbolTable.checkForUndefined(SymbolTable.java:656)
     [java]     at 
org.apache.axis.wsdl.symbolTable.SymbolTable.add(SymbolTable.java:536)
     [java]     at 
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.java:509)
     [java]     at 
org.apache.axis.wsdl.symbolTable.SymbolTable.populate(SymbolTable.java:486)
     [java]     at 
org.apache.axis.wsdl.gen.Parser$WSDLRunnable.run(Parser.java:356)
     [java]     at java.lang.Thread.run(Thread.java:595)

BUILD FAILED

What is the reason for that error? How should complex data types be defined and 
used?

Thanks in advance,
Henrik