How to merge two xmls.

Question

Hi All,
I want to merge two xmls in my output. My scenario is I am getting two sets of outputs and I want to merge them to get my final output. I my output I have a header and a Lineitem. I my final output I want to keep header only once and all the LineItems one by one.Can anyone suggest something.
First outout:-
<outputVariable>
-<part name="payload" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<SiebelOrderQueryByExample_Output xmlns="http://siebel.com/asi/">
-<ns:SiebelOrderQueryByExample_Output xmlns:ns="http://siebel.com/asi/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<ListOfOrderInterface xmlns="http://www.siebel.com/xml/Siebel%20Order">
<Orders>
<Id>1-15IXJ</Id>
<OrderNumber>1012-1234</OrderNumber>
<ListOfLineItems>
<LineItems>
<Id>1-15IY3</Id>
<OrderNumber>1012-1234</OrderNumber>
<LineNumber>301</LineNumber>
</LineItems>
</ListOfLineItems>
</Orders>
</ListOfOrderInterface>
Second output:-
<outputVariable>
-<part name="payload" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<SiebelOrderQueryByExample_Output xmlns="http://siebel.com/asi/">
-<ns:SiebelOrderQueryByExample_Output xmlns:ns="http://siebel.com/asi/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<ListOfOrderInterface xmlns="http://www.siebel.com/xml/Siebel%20Order">
-<Orders>
<Id>1-15IXJ</Id>
<OrderNumber>1012-1234</OrderNumber>
<ListOfLineItems>
<LineItems>
<Id>1-15IW2</Id>
<OrderNumber>1012-1234</OrderNumber>
<LineNumber>302</LineNumber>
</LineItems>
</ListOfLineItems>
</Orders>
</ListOfOrderInterface>
The required output which I want after merging.
<outputVariable>
-<part name="payload" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<SiebelOrderQueryByExample_Output xmlns="http://siebel.com/asi/">
-<ns:SiebelOrderQueryByExample_Output xmlns:ns="http://siebel.com/asi/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
-<ListOfOrderInterface xmlns="http://www.siebel.com/xml/Siebel%20Order">
-<Orders>
<Id>1-15IXJ</Id>
<OrderNumber>1012-1234</OrderNumber>
<ListOfLineItems>
<LineItems>
<Id>1-15IW2</Id>
<OrderNumber>1012-1234</OrderNumber>
<LineNumber>302</LineNumber>
</LineItems>
<LineItems>
<Id>1-15IY3</Id>
<OrderNumber>1012-1234</OrderNumber>
<LineNumber>301</LineNumber>
</LineItems>
</ListOfLineItems>
</Orders>
</ListOfOrderInterface>
Thanks

Answer 1

I am not using file adapter. I am taking inputs from the BPEL client and displaying output to the client. My input xsd is:-
<?xml version="1.0" encoding="UTF-8" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="http://www.example.org/ns/intorder"
targetNamespace="http://www.example.org/ns/intorder"
elementFormDefault="qualified">
<xsd:element name="order" type="orderType">
<xsd:annotation>
<xsd:documentation>
A sample element
</xsd:documentation>
</xsd:annotation>
</xsd:element>
<xsd:complexType name="orderType">
<xsd:sequence>
<xsd:element name="Order_Number" type="xsd:string"/>
<xsd:element name="Line_item" type="LineType" maxOccurs="unbounded" minOccurs="0"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="LineType">
<xsd:sequence>
<xsd:element name="Line_Number" type="xsd:string" />
</xsd:sequence>
</xsd:complexType>
</xsd:schema>