Multiple Recordset names in File conversion

Question

Dear All
I have a complex file format that I am trying to convert into XML using the File Adapter.
- the file as a header in line 1. The header has fields
- then there are a variable number of message each message has a header, body and trailer each of them have a number of fields
- the file is concluded by a file trailer.
I am thinking that there is a need of 3 recordset names. 
Can anybody advise the how can I do this?
e.g.
FileHeader
      ID, date, File name
MessageHead
                    ID,name,type
MessageContent
                    ID,username,userlastname
MessageTrailer
                    ID,messageSequence
MessageHead
                    ID,name,type
MessageContent
                    ID,username,userlastname
MessageTrailer
                    ID,messageSequence
  Filetrailer
                   ID,numberOfMessages
In XML the structure will be something as below which will require more than one Recordset Name.
< MessageType>
              <RecordSet_HEAD>
                       <Fileheader>
                          <value1>value</value1>
                           <value2>value</value2>
                        </Fileheader>
                <RecordSet_HEAD> 
                <RecordSet_MESSAGE>
                        <MessageHead>
                            <value1>value</value1>
                           <value2>value</value2>
                         </ MessageHead>
                       <MessageContent>
                            <value1>value</value1>
                           <value2>value</value2>
                         </ MessageContent>
                       <MessageTrailer>
                            <value1>value</value1>
                           <value2>value</value2>
                        </ MessageTrailer>
                        <MessageHead>
                            <value1>value</value1>
                           <value2>value</value2>
                         </ MessageHead>
                       <MessageContent>
                            <value1>value</value1>
                           <value2>value</value2>
                         </ MessageContent>
                       <MessageTrailer>
                            <value1>value</value1>
                           <value2>value</value2>
                        </ MessageTrailer>
              <RecordSet_TRAILER>
                       <FileTrailer>
                          <value1>value</value1>
                           <value2>value</value2>
                        </FileTeader>
                <RecordSet_TRAILER> 
< /MessageType>
Edited by: Haik Nazarian on May 1, 2008 7:16 AM

Answer 1

Thanks for the answer. It sheds some light on the issue.
Based on the answer it is not possible to do a complex conversion at the adapter level. I am trying to convert an incoming Plan file.
Therefore I need to convert it on the sender file adapter i.e PlainTo XMLConversion. If it is not possible to do that than if I understand correctly it won't be possible to do the message mapping.
Is there a work around?
On teh other hand The File Head and file trailer are not that vital. I might even try to ignore them during the conversion.
It is easy to ignore the file head with the "Document Offset" option but I couldnt find a way to ignore the file Trailer.
Any ideas?
thank you