Int[] to XML

Question

Hi all,
i have a problem with the setVariableData-method within a <bpel:exec>-block. Within this block it gives an int[], which is to be stored into the signature element. During the execution of "setVariableData("input","payload","/tns:Vapi01Request/tns:signature",retSig);" I get the following error:
Error in <assign> expression: <to> value is empty at line "". The XPath expression : "/child::tns:Vapi01Request/child::tns:signature" returns zero node, when applied to document shown below:
<Vapi01Request xmlns="http://de/pdv/visj/web/vapiws/">
<host />
<mandant />
<user>matthias1</user>
<Signature />
</Vapi01Request>
Here is the cutout from my WSDL:
<types>
<schema attributeFormDefault="qualified" elementFormDefault="qualified"
targetNamespace="http://de/pdv/visj/web/vapiws/"
xmlns="http://www.w3.org/2001/XMLSchema">
<element name="Vapi01Request">
<complexType>
<sequence>
<element name="host" type="string"/>
                         <element name="mandant" type="string"/>
                         <element name="user" type="string"/>
                         <element name="Signature" maxOccurs="unbounded" type="int" />
</sequence>
</complexType>
</element>
<element name="Vapi01Response">
<complexType>
<sequence>
<element name="result" type="string"/>
</sequence>
</complexType>
</element>
</schema>
</types>
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
MESSAGE TYPE DEFINITION - Definition of the message types used as
part of the port type defintions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
<message name="Vapi01RequestMessage">
<part name="payload" element="tns:Vapi01Request"/>
</message>
<message name="Vapi01ResponseMessage">
<part name="payload" element="tns:Vapi01Response"/>
</message>
What is the problem? What do I have to do??? I use the current versions of the BPEL designer and BPEL Process manager.
Thanks
Matthias

Answer 1

Hi Matthias,
The error message is correct, your query string has wrong node-name (lower case s) for Signature element.
/child::tns:Vapi01Request/child::tns:signature
Please correct to
/child::tns:Vapi01Request/child::tns:Signature
Because your document has upper case Signature.
<Vapi01Request xmlns="http://de/pdv/visj/web/vapiws/">
<host />
<mandant />
<user>matthias1</user>
<Signature />
</Vapi01Request>