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POHow to assign array in a BPEL process
 

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    <p>I have a simple string as input and after calling a web service which adds the string to an array.Now i have to assign the array to the output(which i have set as a string array in the schema).The enterprise manager gives a fault and says the result contains multiple nodes for the XPath expression given.The Assign activity is shown as pending.So basically how do i assign an array or a list to the output variable which is also set as an array.The wsdl file used is:</p> <pre><code>&lt;?xml version = '1.0' encoding = 'UTF-8'?&gt; &lt;definitions name="ReturnTypeService" targetNamespace="http://examples2/" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://examples2/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" &gt; &lt;types&gt; &lt;xsd:schema&gt; &lt;xsd:import namespace="http://examples2/" schemaLocation="http://localhost:7101/Examples2-Examples2-context-root/ReturnTypePort?xsd=1"/&gt; &lt;/xsd:schema&gt; &lt;/types&gt; &lt;message name="display"&gt; &lt;part name="parameters" element="tns:display"/&gt; &lt;/message&gt; &lt;message name="displayResponse"&gt; &lt;part name="parameters" element="tns:displayResponse"/&gt; &lt;/message&gt; &lt;portType name="ReturnType"&gt; &lt;operation name="display"&gt; &lt;input message="tns:display"/&gt; &lt;output name="displayResponse" message="tns:displayResponse"/&gt; &lt;/operation&gt; &lt;/portType&gt; &lt;binding name="ReturnTypePortBinding" type="tns:ReturnType"&gt; &lt;soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/&gt; &lt;operation name="display"&gt; &lt;soap:operation soapAction=""/&gt; &lt;input&gt; &lt;soap:body use="literal"/&gt; &lt;/input&gt; &lt;output&gt; &lt;soap:body use="literal"/&gt; &lt;/output&gt; &lt;/operation&gt; &lt;/binding&gt; &lt;service name="ReturnTypeService"&gt; &lt;port name="ReturnTypePort" binding="tns:ReturnTypePortBinding"&gt; &lt;soap:address location="http://localhost:7101/Examples2-Examples2-context-root/ReturnTypePort"/&gt; &lt;/port&gt; &lt;/service&gt; &lt;/definitions&gt; </code></pre> <hr> <p>@vanto Is there a way to assign an array from input variable to invoke_input variable?The problem is there are multiple inputs in my web service so i am not able to copy the wrapping element in input variable to wrapping variable in invoke variable.Will copy the snippet of the code here :</p> <pre><code>&lt;assign name="Assign1"&gt; &lt;copy&gt; &lt;from variable="inputVariable" part="payload" query="/ns2:process/ns2:dsaName"/&gt; &lt;to variable="Invoke1_processList_InputVariable" part="parameters" query="/ns1:processList/dsaName"/&gt; &lt;/copy&gt; &lt;copy&gt; &lt;from variable="inputVariable" part="payload" query="/ns2:process/ns2:linesOfData"/&gt; &lt;to variable="Invoke1_processList_InputVariable" part="parameters" query="/ns1:processList/linesOfData"/&gt; &lt;/copy&gt; &lt;copy&gt; &lt;from variable="inputVariable" part="payload" query="/ns2:process/ns2:description"/&gt; &lt;to variable="Invoke1_processList_InputVariable" part="parameters" query="/ns1:processList/description"/&gt; &lt;/copy&gt; &lt;copy&gt; &lt;from variable="inputVariable" part="payload" query="/ns2:process/ns2:application"/&gt; &lt;to variable="Invoke1_processList_InputVariable" part="parameters" query="/ns1:processList/application"/&gt; &lt;/copy&gt; &lt;/assign&gt; </code></pre> <p>The problem is only one is of list type all others are of string type.The XML for this is:</p> <pre><code>&lt;element name="process"&gt; &lt;complexType&gt; &lt;sequence&gt; &lt;element name="dsaName" type="string" minOccurs="0"/&gt; &lt;element name="linesOfData" type="string" minOccurs="0" maxOccurs="unbounded"/&gt; &lt;element name="description" type="string" minOccurs="0"/&gt; &lt;/sequence&gt; &lt;/complexType&gt; &lt;/element&gt; &lt;element name="processResponse"&gt; &lt;complexType&gt; &lt;sequence&gt; &lt;element name="result" type="string" minOccurs="0" maxOccurs="unbounded"/&gt; &lt;/sequence&gt; &lt;/complexType&gt; &lt;/element&gt; &lt;/schema&gt; </code></pre>
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    1. COHard to tell without seeing the `<assign>` and the XSD contents.
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    2. CO<xs:element name="display" type="tns:display"/> <xs:element name="displayResponse" type="tns:displayResponse"/> <xs:complexType name="display"> <xs:sequence> <xs:element name="arg0" type="xs:string" minOccurs="0"/> </xs:sequence> </xs:complexType> <xs:complexType name="displayResponse"> <xs:sequence> <xs:element name="return" type="xs:string" minOccurs="0" maxOccurs="unbounded"/> </xs:sequence> </xs:complexType> </xs:schema>
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    3. CO^This is the xsd.The <assign> is: <assign name="Assign2"> <copy> <from variable="Invoke1_display_OutputVariable" part="parameters" query="/ns1:displayResponse/return"/> <to variable="outputVariable" part="payload" query="/ns2:processResponse/ns2:result"/> </copy> </assign>
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