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From JB <ju.b2...@yahoo.de>
Subject Assignment Fault
Date Fri, 04 Jan 2008 21:13:44 GMT
Hello,
I receive the following error message while running the helloWorld sample:
Assignment Fault: {http://docs.oasis-open.org/wsbpel/2.0/process/executable}selectionFailure,lineNo=21,faultExplanation=No
results for expression: {OXPath10Expression /tns:result}

My BPEL file:
<?xml version="1.0" encoding="UTF-8"?>
<bpws:process exitOnStandardFault="yes" name="HelloWorld"
    suppressJoinFailure="yes"
    targetNamespace="http://eclipse.org/bpel/sample"

    xmlns:bpws="http://docs.oasis-open.org/wsbpel/2.0/process/executable" xmlns:tns="http://eclipse.org/bpel/sample">
    
        location="HelloWorld.wsdl" namespace="http://eclipse.org/bpel/sample"/>
    <bpws:partnerLinks>
        <bpws:partnerLink myRole="HelloWorldProvider" name="client"
            partnerLinkType="tns:HelloWorld" partnerRole="HelloWorldRequester"/>
    </bpws:partnerLinks>
    <bpws:variables>
        <bpws:variable messageType="tns:HelloWorldRequestMessage" name="input"/>
       
 <bpws:variable messageType="tns:HelloWorldResponseMessage" name="output"/>
   
 </bpws:variables>
    <bpws:sequence name="main">
        <bpws:receive createInstance="yes" name="receiveInput"
            operation="initiate" partnerLink="client"
            portType="tns:HelloWorld" variable="input"/>
        <bpws:assign name="Assign" validate="no">
            <bpws:copy>
                <bpws:from><![CDATA[concat('Hello, ', $input.payload/tns:input)]]></bpws:from>
                <bpws:to part="payload" variable="output">
                    <bpws:query queryLanguage="urn:oasis:names:tc:wsbpel:2.0:sublang:xpath1.0"><![CDATA[/tns:result]]></bpws:query>
                </bpws:to>
            </bpws:copy>
        </bpws:assign>
        <bpws:invoke inputVariable="output" name="callbackClient"
           
 operation="onResult" partnerLink="client" portType="tns:HelloWorldCallback"/>
   
 </bpws:sequence>
</bpws:process>

My wsdl file:
<?xml version="1.0"?>
<definitions name="HelloWorld"
        targetNamespace="http://eclipse.org/bpel/sample"
        xmlns:tns="http://eclipse.org/bpel/sample"
        xmlns:plnk="http://docs.oasis-open.org/wsbpel/2.0/plnktype"
        xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
        xmlns="http://schemas.xmlsoap.org/wsdl/"
        >

<!--

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     TYPE DEFINITION - List of services participating in this BPEL process 
     The default output of the BPEL designer uses strings as input and 
     output to the BPEL Process. But you can define or import any XML 
     Schema type and us them as part of the message types.
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->    
    <types>  
        <schema attributeFormDefault="unqualified" 
                elementFormDefault="qualified" 
                targetNamespace="http://eclipse.org/bpel/sample" 
                xmlns="http://www.w3.org/2001/XMLSchema"
                >
                
            <element
 name="HelloWorldRequest">
    
            <complexType>
                    <sequence>
                        <element name="input" type="string" />
                    </sequence>
                </complexType>
            </element>
                  
            <element name="HelloWorldResponse">
                <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="HelloWorldRequestMessage">
        <part name="payload" element="tns:HelloWorldRequest"/>
    </message>
    
    <message name="HelloWorldResponseMessage">
        <part name="payload" element="tns:HelloWorldResponse"/>
    </message>


<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     PORT TYPE DEFINITION - A port type groups a set of operations into
     a logical service unit.
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
    <!-- portType implemented by the HelloWorld BPEL process -->
    <portType name="HelloWorld">
        <operation name="initiate">
            <input message="tns:HelloWorldRequestMessage"/>
        </operation>
   
 </portType>

    <!-- portType implemented by the requester of HelloWorld BPEL process 
        
 for asynchronous callback purposes
         -->
    <portType name="HelloWorldCallback">
        <operation name="onResult">
            <input message="tns:HelloWorldResponseMessage"/>
        </operation>
    </portType>
    
<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     BINDING AND SERVICE DEFINITION
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->
	<binding name="HelloSoapBinding" type="tns:HelloWorld">
		 http://schemas.xmlsoap.org/soap/http"/>
		<operation name="initiate">
			<soap:operation soapAction="" style="document"/>
			<input>
				 http://eclipse.org/bpel/sample"/>
			</input>
			<output>
			 http://eclipse.org/bpel/sample"/>
			</output>
		</operation>
	</binding>

	<service name="HelloService">
		<port name="HelloPort" binding="tns:HelloSoapBinding">
			 http://localhost:8080/ode/processes/helloWorld"/>
		</port>
	</service>

<!-- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     PARTNER LINK TYPE DEFINITION
         the HelloWorld partnerLinkType binds the provider and
         requester portType into an asynchronous conversation.
    

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -->    
    <plnk:partnerLinkType name="HelloWorld">
        <plnk:role name="HelloWorldProvider" portType="tns:HelloWorld"/>
        <plnk:role name="HelloWorldRequester" portType="tns:HelloWorldCallback"/>
    </plnk:partnerLinkType>   
</definitions>

deploy.xml

	xmlns:pns="http://eclipse.org/bpel/sample" 
	xmlns:wns="http://eclipse.org/bpel/sample">
	
	<process name="pns:HelloWorld">
		<active>true</active>
		<provide partnerLink="client">
			<service
 name="wns:HelloService" port="HelloPort"/>
		</provide>
		<invoke partnerLink="client">
			<service
 name="wns:HelloService" port="HelloPort"/>
		</invoke>
	</process>
</deploy>

Thanks for help,
J.B.









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