XSL transformations - choice element

Question

Hi all,
Need inputs in doing xslt transformations on a choice element. Please provide helpful urls/inputs.
My xsd(similar one):-
<xs:element name="Root">
                    <xs:complexType>
                         <xs:choice minOccurs="0" maxOccurs="1">
                              <xs:element name="field1" type="xs:string"></xs:element>
                              <xs:element name="field2" type="xs:string"></xs:element>
                              <xs:element name="field3" type="xs:string"></xs:element>
                              <xs:element name="field4" type="xs:string"></xs:element>
                         </xs:choice>
                    </xs:complexType>
Required output:-
<Root>
<field1>message</field1>
</Root>
or
<Root>
<field2>message</field2>
</Root>
or
<Root>
<field3>message</field3>
</Root>
But when i do transformations the output is shown below. How could I get the above input?
<Root>
<field1>message</field1>
<field2/>
<field3/>
<field4/>
</Root>
Please let me know

Answer 1

Hi,
Do you use the "transformation" activity of the BPEL ?
If yes then you can check two things :
- That the option of the XSL map doesn't generate empty node for all unmapped nodes
- That you have an if condition checking if the node exist before mapping it.
regards,
mathieu