Error in defining a correlation in netbeans for a BPEL

Question

hallo,
would anybdy be kind enough to tell me where i've done somthing wrong?
there are two receive activities in a BPEL, recieve1 and recieve2. on the latter i have defined a correlation whose initiator is recieve1. the related source code from correlationWSDL is :
<vprop:property name="wzrd_prop_ContactNo_ContactNo" type="xsd:int"/>
    <vprop:propertyAlias propertyName="tns:wzrd_prop_ContactNo_ContactNo" messageType="ns:checkLeadDuplicationStatusRequest" part="part1">
        <vprop:query>/ns0:LeadCoreInfo/ns0:ContactNo</vprop:query>
    </vprop:propertyAlias>
    <vprop:propertyAlias propertyName="tns:wzrd_prop_ContactNo_ContactNo" messageType="ns:leadWSOperationRequest" part="part1">
        <vprop:query>/ns0:LeadDetailedInfo/ns0:LeadCoreInfo/ns0:ContactNo</vprop:query>
    </vprop:propertyAlias>error that i'm getting is:
ERROR: The first step has to be "ns0:LeadCoreInfo", if an absolute path is used for query. Expression: "/ns0:LeadCoreInfo/ns0:ContactNo"
regards

Answer 1

thanks, mr. bhasin.
i have used the same wizard for correlation.i haven't solved the problem, but have found an alternative instead. lemme tell you what i have done. if i replace
<vprop:query>/ns0:LeadDetailedInfo/ns0:LeadCoreInfo/ns0:ContactNo</vprop:query>with the following code line then it works:
   <vprop:query>/ns0:LeadCoreInfo/ns0:ContactNo</vprop:query>the problem is that the element that is correlated on the two recieve activities has to be on the same level of hierarchy, otherwise it does give error. it seems quite ridiculous to me, coz inputs might be different at any two activities, and is the case most of the times.
part of the schema is:
<xsd:element name="LeadCoreInfo" type="tns:leadCoreInfoType"/>
    <xsd:element name="LeadDetailedInfo" type="tns:leadDetailedInfoType"></xsd:element>
    <xsd:element name="LeadDuplicationStatus" type="xsd:string"/>
    <xsd:element name="LeadCreated" type="xsd:integer"/>
    <xsd:element name="AgentAssigned" type="tns:agentType"/>
    <xsd:element name="AutoID" type="xsd:int"/>
    <xsd:element name="Result" type="xsd:string"/>
    <xsd:complexType name="leadCoreInfoType">
        <xsd:sequence>
            <xsd:element name="FirstName" type="xsd:string"/>
            <xsd:element name="LastName" type="xsd:string"/>
            <xsd:element name="ContactNo" type="xsd:int"/>
            <xsd:element name="Email" type="xsd:string"/>
            <xsd:element name="AutoID" type="xsd:int"/>
        </xsd:sequence>
    </xsd:complexType>
    <xsd:complexType name="leadDetailedInfoType">
        <xsd:sequence>
            <xsd:element name="LeadCoreInfo" type="tns:leadCoreInfoType"/>
            <xsd:element name="LeadOwner" type="xsd:string"/>
            <xsd:element name="Title" type="xsd:string"/>
            <xsd:element name="LeadSource">
                <xsd:complexType>
                    <xsd:choice>
                        <xsd:element name="ColdCall" type="xsd:string"/>
                        <xsd:element name="ExistingCustomer" type="xsd:string"/>
                        <xsd:element name="IncomingCall" type="xsd:string"/>
                        <xsd:element name="EmailLead" type="xsd:string"/>
                        <xsd:element name="CustomerReferral" type="xsd:string"/>
                        <xsd:element name="Web" type="xsd:string"/>
                        <xsd:element name="WordOfMouth" type="xsd:string"/>
                    </xsd:choice>
                </xsd:complexType>
            </xsd:element>
in leadBPEL  i have defined a correlation on recieve2 whose initiator is recieve1. in correlation wizard, i mapped AutoID (of message sent to recieve1) to AutoID (of message sent to recieve2). the source code of leadBPEL is:
<?xml version="1.0" encoding="UTF-8"?>
<process
    name="leadBPEL"
    targetNamespace="http://enterprise.netbeans.org/bpel/LeadWebService/leadBPEL"
    xmlns="http://docs.oasis-open.org/wsbpel/2.0/process/executable"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:tns="http://enterprise.netbeans.org/bpel/LeadWebService/leadBPEL" xmlns:sxt="http://www.sun.com/wsbpel/2.0/process/executable/SUNExtension/Trace" xmlns:sxed="http://www.sun.com/wsbpel/2.0/process/executable/SUNExtension/Editor" xmlns:ns0="http://enterprise.netbeans.org/bpel/WizardCorrelationProperties" xmlns:ns1="http://xml.netbeans.org/schema/LeadSchema">
    <import namespace="http://j2ee.netbeans.org/wsdl/leadWS" location="leadWS.wsdl" importType="http://schemas.xmlsoap.org/wsdl/"/>
    <import namespace="http://j2ee.netbeans.org/wsdl/checkLeadDuplicationWS" location="checkLeadDuplicationWS.wsdl" importType="http://schemas.xmlsoap.org/wsdl/"/>
    <import namespace="http://j2ee.netbeans.org/wsdl/createLeadWS" location="createLeadWS.wsdl" importType="http://schemas.xmlsoap.org/wsdl/"/>
    <import namespace="http://enterprise.netbeans.org/bpel/WizardCorrelationProperties" location="WizardCorrelationProperties.wsdl" importType="http://schemas.xmlsoap.org/wsdl/"/>
    <partnerLinks>
        <partnerLink name="checkLeadDuplicationWSpartner" xmlns:tns="http://j2ee.netbeans.org/wsdl/checkLeadDuplicationWS" partnerLinkType="tns:checkLeadDuplicationWS" partnerRole="checkLeadDuplicationWSPortTypeRole"/>
        <partnerLink name="createLeadWSpartner" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" partnerLinkType="tns:createLeadWS" partnerRole="createLeadWSPortTypeRole"/>
        <partnerLink name="leadWSpartner" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" partnerLinkType="tns:leadWS" myRole="leadWSPortTypeRole"/>
    </partnerLinks>
    <variables>
        <variable name="CreateLeadOperationOut" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" messageType="tns:leadWSOperationResponse"/>
        <variable name="AutoAssignLeadOperationOut" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" messageType="tns:createLeadWSOperationResponse"/>
        <variable name="AutoAssignLeadOperationIn" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" messageType="tns:createLeadWSOperationRequest"/>
        <variable name="CreateNewLeadOperationOut" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" messageType="tns:createNewLeadOperationResponse"/>
        <variable name="CreateNewLeadOperationIn" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" messageType="tns:createNewLeadOperationRequest"/>
        <variable name="CreateLeadOperationIn" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" messageType="tns:leadWSOperationRequest"/>
        <variable name="CheckLeadDuplicationStatusIn1" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" messageType="tns:checkLeadDuplicationStatusRequest"/>
        <variable name="CheckLeadDuplicationStatusOut" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" messageType="tns:checkLeadDuplicationStatusResponse"/>
        <variable name="CheckLeadDuplicationWSOperationOut" xmlns:tns="http://j2ee.netbeans.org/wsdl/checkLeadDuplicationWS" messageType="tns:checkLeadDuplicationWSOperationResponse"/>
        <variable name="CheckLeadDuplicationWSOperationIn" xmlns:tns="http://j2ee.netbeans.org/wsdl/checkLeadDuplicationWS" messageType="tns:checkLeadDuplicationWSOperationRequest"/>
        <variable name="CheckLeadDuplicationStatusIn" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" messageType="tns:checkLeadDuplicationStatusRequest"/>
    </variables>
    <correlationSets>
        <correlationSet name="wzrd_set_Receive1_Receive2" properties="ns0:wzrd_prop_AutoID_AutoID"/>
        <correlationSet name="wzrd_set_Receive1_Receive2_1" properties="ns0:wzrd_prop_AutoID_AutoID"/>
    </correlationSets>
    <sequence>
        <receive name="Receive1" createInstance="yes" partnerLink="leadWSpartner" operation="checkLeadDuplicationStatus" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" portType="tns:leadWSPortType" variable="CheckLeadDuplicationStatusIn">
            <correlations>
                <correlation set="wzrd_set_Receive1_Receive2_1" initiate="yes"/>
            </correlations>
        </receive>
        <assign name="Assign1">
            <copy>
                <from variable="CheckLeadDuplicationStatusIn" part="part1"/>
                <to variable="CheckLeadDuplicationWSOperationIn" part="part1leadCoreInfo"/>
            </copy>
        </assign>
        <invoke name="Invoke1" partnerLink="checkLeadDuplicationWSpartner" operation="checkLeadDuplicationWSOperation" xmlns:tns="http://j2ee.netbeans.org/wsdl/checkLeadDuplicationWS" portType="tns:checkLeadDuplicationWSPortType" inputVariable="CheckLeadDuplicationWSOperationIn" outputVariable="CheckLeadDuplicationWSOperationOut"></invoke>
        <assign name="Assign2">
            <copy>
                <from variable="CheckLeadDuplicationWSOperationOut" part="leadDuplicationStatus"/>
                <to variable="CheckLeadDuplicationStatusOut" part="leadDuplicationStatus"/>
            </copy>
        </assign>
        <reply name="Reply1" partnerLink="leadWSpartner" operation="checkLeadDuplicationStatus" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" portType="tns:leadWSPortType" variable="CheckLeadDuplicationStatusOut"></reply>
        <receive name="Receive2" createInstance="no" partnerLink="leadWSpartner" operation="createLeadOperation" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" portType="tns:leadWSPortType" variable="CreateLeadOperationIn">
            <correlations>
                <correlation set="wzrd_set_Receive1_Receive2_1" initiate="no"/>
            </correlations>
        </receive>
        <assign name="Assign3">
            <copy>
                <from variable="CreateLeadOperationIn" part="part1"/>
                <to variable="CreateNewLeadOperationIn" part="leadDetailedInfo"/>
            </copy>
        </assign>
        <invoke name="Invoke2" partnerLink="createLeadWSpartner" operation="createNewLeadOperation" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" portType="tns:createLeadWSPortType" inputVariable="CreateNewLeadOperationIn" outputVariable="CreateNewLeadOperationOut"/>
        <if name="If1">
            <condition>$CreateNewLeadOperationOut.leadCreated = 1</condition>
            <sequence name="Sequence1">
                <assign name="Assign4">
                    <copy>
                        <from variable="CreateNewLeadOperationIn" part="leadDetailedInfo"/>
                            <to variable="AutoAssignLeadOperationIn" part="leaddetailedInfo"/>
                    </copy>
                </assign>
                <invoke name="Invoke3" partnerLink="createLeadWSpartner" operation="autoAssignLeadOperation" xmlns:tns="http://j2ee.netbeans.org/wsdl/createLeadWS" portType="tns:createLeadWSPortType" inputVariable="AutoAssignLeadOperationIn" outputVariable="AutoAssignLeadOperationOut"/>
                <assign name="Assign6">
                    <copy>
                        <from>1</from>
                        <to variable="CreateLeadOperationOut" part="leadCreated"/>
                    </copy>
                    <copy>
                        <from variable="AutoAssignLeadOperationOut" part="agentAssigned"/>
                        <to variable="CreateLeadOperationOut" part="agentAssigned"/>
                    </copy>
                </assign>
            </sequence>
            <else>
                <assign name="Assign5">
                    <copy>
                        <from>0</from>
                        <to variable="CreateLeadOperationOut" part="leadCreated"/>
                    </copy>
                    <copy>
                        <from>'NULL'</from>
                        <to>$CreateLeadOperationOut.agentAssigned/ns1:FirstName</to>
                    </copy>
                    <copy>
                        <from>'NULL'</from>
                        <to>$CreateLeadOperationOut.agentAssigned/ns1:Lastname</to>
                    </copy>
                    <copy>
                        <from>0</from>
                        <to>$CreateLeadOperationOut.agentAssigned/ns1:agentID</to>
                    </copy>
                </assign>
            </else>
        </if>
        <reply name="Reply2" partnerLink="leadWSpartner" operation="createLeadOperation" xmlns:tns="http://j2ee.netbeans.org/wsdl/leadWS" portType="tns:leadWSPortType" variable="CreateLeadOperationOut"/>
    </sequence>
</process>
the generated source code of correlation wizard is:
<vprop:property name="wzrd_prop_AutoID_AutoID" type="xsd:int"/><vprop:propertyAlias propertyName="tns:wzrd_prop_AutoID_AutoID" messageType="ns:checkLeadDuplicationStatusRequest" part="part1">
        *<vprop:query>/ns0:LeadCoreInfo/ns0:AutoID</vprop:query>*
    </vprop:propertyAlias>
    <vprop:propertyAlias propertyName="tns:wzrd_prop_AutoID_AutoID" messageType="ns:leadWSOperationRequest" part="part1">
        <vprop:query>/ns0:LeadDetailedInfo/ns0:LeadCoreInfo/ns0:AutoID</vprop:query>
    </vprop:propertyAlias>
the error that i get is:C:/Documents and Settings/bushra/My Documents/NetBeansProjects/LeadWebService/src/WizardCorrelationProperties.wsdl:28,8
ERROR: The first step has to be "ns0:LeadCoreInfo", if an absolute path is used for query. Expression: "/ns0:LeadCoreInfo/ns0:AutoID"
if this AutoIDs in both queries are in same level of hierarchy (if  for example i send LeadDetailedInfo to recieve2, instead of LeadCoreInfo), then there is no error. Why is that?