OAGIS Get XPath Expression

Question

We are using the OAGis schema and a client is sending us data in an expression instead of in the actual schema location using the <Get> portion of the schema.
<Get uniqueIndicator="true">
      <Expression expressionLanguage="XPath">//Credit/FirstName[.="John"]</Expression>
      <Expression expressionLanguage="XPath">//Credit/LastName[.="Smith"]</Expression>
</Get>What is the best way in BPEL to evaluate this xpath expression to set the FirstName to John and LastName to Smith? We are currently using a transform to parse each expression using XSLT into our database schema. It's not very elegant because it uses an if statement to check the path then has to parse out between the quotes then passes the value to the new var/schema.
It seems like there should be a way to evaluate the XPath and set the path to the noted string.
Thanks,

Answer 1

This Example works fine for arrays that are part of a WSDL message.
But in 10.1.3.1 this does not work with a array that is part of an XSD declaration
for Example XSD snippet
<xsd:element name="itemList">
          <xsd:complexType>
               <xsd:sequence>
                    <xsd:element maxOccurs="unbounded" minOccurs="1" ref="tns:Item" />
               </xsd:sequence>
          </xsd:complexType>
     </xsd:element>
using the following in assign statement
<copy>
<from expression="concat('/ns9:itemList/ns9:Item[',string(bpws:getVariableData('index')),']')"/>
<to variable="idxXpath"/>
</copy>
<copy>
<from expression="bpws:getVariableData('OutputItemList',bpws:getVariableData('idxXpath'))"/>
<to variable="idx_item"/>
</copy>
gives a compiler error that is
Error(176):
[Error ORABPEL-10085]: invalid argument
[Description]: in line 176 of "D:\OnlineShopping_1\bpel\OnlineShopping.bpel", the second argument "bpws:getVariableData("idxXpath")" for getVariableData is not a literal expression.
[Potential fix]: Please correct the second argument, you might need to escape using single quote or " to make it literal.
Can anyone site the reason for the same or a possible solution?
Message was edited by:
user607972