IDoc to file. Grouping and generation of files based on condition

Question

Hi All,
I am working on a scenario, Idoc to File. I need to create number of files based on  occurrence of a field(vendor) in the idoc. Also the condition is to group by the field(vendor) and create as many files as the number of groups formed.
For e.g.: In an Idoc if there are ten items present and 3 vendors who are supplying it. <b>The vendor and items can repeat in any order within the same idoc. </b>
I need to group the items by the vendors and create a file separately for each vendor.  Like :   
Item         Vendor
Item1       V1
Item2         V1
Item3         V2
Item4       V2
Item5        V2
Item6         V2
Item1      V2
Item2         V2
Item3        V3
Item6        V3
What we have to achieve is, to group by the vendors irrespective of the order of the items or number of reoccurrence of the items.  As you see, the Item1 is supplied by both V1 and V2. I need to generate 3 files as follows:
V1.xml with Item1 and Item2 details.
V2.xml with Item3, Item4, Item5, Item6, Item1 Item2 details.
V3.xml with Item3 and Item6 details.
Can someone please help me with achieving this without using BPM?

Answer 1

Hi Shashi,
For this scenario you have to use multimaping without BPM using this blog.
/people/jin.shin/blog/2006/02/07/multi-mapping-without-bpm--yes-it146s-possible
And while doing your message mapping you have to use <b>removeContext</b> & <b>SplitByValue</b> (double clike the on splitbyvalue and select <b>value changed</b>) function. This function you have to use with the node in which your Vendor is coming. Example:
if required to sort the vendor, then first sort the vendor in the below mapping.
Vendor (NODE) -
> removeContext -
> SplitByValue (value Changed) -
> IDOC.
By doing this your vendor will be grouped and you will get new IDOC on change of  Vendor.
Regards,
Sarvesh