Flattening an IDOC via Graphical mapping

Question

Hi,
I'm still new to the context mapping functions.
Though there are numerous examples to do parts of what I would like to do,  none seems to address my scenario in such a way that I can combine the mapping methods.
My scenario
Source IDOC
  <SEG1>   (Occurs 1)
     <PLANT>P1</PLANT>
  </SEG1>
  <SEG2> (Occurs 1..9999)
     <MATERIAL>
       <MATNR>M1</MATNR>
       <MAKTX>D1</MAKTX>
         <SEG3>
           <UOM>U1</UOM>
           <UOM>U2</UOM>
           <UOM>U3</UOM>
         </SEG3>
     </MATERIAL>
     <MATERIAL>
       <MATNR>M2</MATNR>
       <MAKTX>D2</MAKTX>
         <SEG3>
           <UOM>U4</UOM>
           <UOM>U5</UOM>
           <UOM>U6</UOM>
         </SEG3>
     </MATERIAL>
  </SEG2>
Target flat structure
<Target> (Occurs 0 to unbounded)
  <Plant/>
  <Matnr/>
  <Desc/>
  <UOM/>
</Target>
What I'm looking for is :
<Target>
  <Plant>P1</Plant>
  <Matnr>M1</Matnr>
  <Desc>D1</Desc>
  <UOM>U1</UOM>
  <Plant>P1</Plant>
  <Matnr>M1</Matnr>
  <Desc>D1</Desc>
  <UOM>U2</UOM>
  <Plant>P1</Plant>
  <Matnr>M1</Matnr>
  <Desc>D1</Desc>
  <UOM>U3</UOM>
  <Plant>P1</Plant>
  <Matnr>M2</Matnr>
  <Desc>D2</Desc>
  <UOM>U4</UOM>
  <Plant>P1</Plant>
  <Matnr>M2</Matnr>
  <Desc>D2</Desc>
  <UOM>U5</UOM>
  <Plant>P1</Plant>
  <Matnr>M2</Matnr>
  <Desc>D2</Desc>
  <UOM>U6</UOM>
</Target>
and so on.
I can flatten the structure to get the <Plant><Material> part with the <removeContext> method
and  
the <Matrial><Desc><UOM> with a <copyHeaderPerUOM> user  function folowed by a <SplitByValue> assignment but I cannot seem to combine the two methods to get to resultant flat structure I'm looking for.
Any help will be appreciated.
Thanks
Andre

Answer 1

Mapping:
UOM(WITH CONTEXT as ROOT)-->TARGET
PLANT--->|
UOM(WITH CONTEXT as ROOT)->|UseOneAsMany>SplitByValue-->Plant
UOM(WITH CONTEXT as ROOT)--->|
MATNR--->|
UOM(WITH CONTEXT as MATERIAL)->|UseOneAsMany>SplitByValue-->Matnr
UOM(WITH CONTEXT as MATERIAL)--->|
MAKTX--->|
UOM(WITH CONTEXT as MATERIAL)->|UseOneAsMany>SplitByValue-->Desc
UOM(WITH CONTEXT as MATERIAL)--->|
UOM>SplitByValue>UOM
InputData:
<?xml version="1.0" encoding="UTF-8"?>
<ROOT>
   <SEG1> (Occurs 1)
          <PLANT>P1</PLANT>
     </SEG1>     
     <SEG2> (Occurs 1..9999)
          <MATERIAL>
               <MATNR>M1</MATNR>
               <MAKTX>D1</MAKTX>
               <SEG3>
                    <UOM>U1</UOM>
                    <UOM>U2</UOM>
                    <UOM>U3</UOM>
               </SEG3>
          </MATERIAL>
          <MATERIAL>
               <MATNR>M2</MATNR>
               <MAKTX>D2</MAKTX>
               <SEG3>
                    <UOM>U4</UOM>
                    <UOM>U5</UOM>
                    <UOM>U6</UOM>
               </SEG3>
          </MATERIAL>
     </SEG2>
</ROOT>
oUTPUT:
<?xml version="1.0" encoding="UTF-8"?>
<ROOT>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M1</Matnr>
      <Desc>D1</Desc>
      <UOM>U1</UOM>
   </Target>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M1</Matnr>
      <Desc>D1</Desc>
      <UOM>U2</UOM>
   </Target>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M1</Matnr>
      <Desc>D1</Desc>
      <UOM>U3</UOM>
   </Target>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M2</Matnr>
      <Desc>D2</Desc>
      <UOM>U4</UOM>
   </Target>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M2</Matnr>
      <Desc>D2</Desc>
      <UOM>U5</UOM>
   </Target>
   <Target>
      <Plant>P1</Plant>
      <Matnr>M2</Matnr>
      <Desc>D2</Desc>
      <UOM>U6</UOM>
   </Target>
</ROOT>
Regards,
KNS Kumar.