How to convert a string-xml placed inside an xml tag to xml format.

I have a invoke activity to invoke Web service(code snippet from bpel) .The text in bold is a string that gets formed based on some condition using concat inside while loop .Before calling the WS i need to convert this string into xml
Any idea how can we do this ?
<Invoke_A9WS_createObject_InputVariable>
<part name="parameters">
<createObject>
<request>
<requests>
<classIdentifier>10141</classIdentifier>
<data rowId="0">*<number>C0001</number><description>Component from CDM</description>*</data>
</requests>
</request>
</createObject>
</part>
</Invoke_A9WS_createObject_InputVariable>
Request someone to please help .
Edited by: 869283 on Jul 14, 2011 4:34 AM

Thanks Dev for your reply ..I have tried using parsEscapedXML but it gives exception
Fault ID default/ProjReverseTransform!1.0*soa_6761b853-f458-4b1a-b9c3-6c060cde9350/transform/210018-BpAss3-BpSeq0.3-3
Fault Time Jul 15, 2011 1:23:42 PM
Non Recoverable System Fault :
<bpelFault><faultType>0</faultType><subLanguageExecutionFault xmlns="http://schemas.oracle.com/bpel/extension"><part name="summary"><summary>XPath expression failed to execute. An error occurs while processing the XPath expression; the expression is oraext:parseEscapedXML('<?xml version="1.0"?><number xmlns:ns2="http://schemas.oracle.com/service/bpel/common&quot;>C0001 &lt;/number>&lt;description xmlns:ns2=&quot;http://schemas.oracle.com/service/bpel/common">Component from CDM <description>'). The XPath expression failed to execute; the reason was: internal xpath error. Check the detailed root cause described in the exception message text and verify that the XPath query is correct. </summary></part><part name="code"><code>XPathExecutionError</code></part></subLanguageExecutionFault></bpelFault>
I am using the assign activity as below
<assign name="Assign_BpelVar">
<copy>
<from expression="oraext:parseEscapedXML('<?xml version="1.0"?><number xmlns:ns2="http://schemas.oracle.com/service/bpel/common&quot;>C0001 &lt;/number>&lt;description xmlns:ns2=&quot;http://schemas.oracle.com/service/bpel/common">Component from CDM <description>')"/>
<to variable="parameterVar"
query="/ns2:parameters/ns2:item/ns2:value"/>
</copy>
</assign>
I have harcoded the string here so as to check the working othersie this string gets formed inside a while loop and is stored in a variable.
parameterVar is variable of type
<variable name="parameterVar" element="ns2:parameters"/>
XSD for parameterVar
<?xml version= '1.0' encoding= 'UTF-8' ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://schemas.oracle.com/service/bpel/common"
targetNamespace="http://schemas.oracle.com/service/bpel/common"
elementFormDefault="qualified">
<xsd:element name="parameters">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="item" minOccurs="1" maxOccurs="unbounded">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="value">
<xsd:complexType>
<xsd:sequence>
<xsd:any minOccurs="0"
maxOccurs="unbounded"/>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
</xsd:schema>

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