Role of an ABAP Developer in XI

Hi,
I had worked on R/3 as an ABAP dev and I am planning to move to SAP XI.
I had gone through the XI fundamentals and I see that for an ABAP developer its a switch from an ERP to EAI tool. Before I start off with XI I thought to write to the right people to get myself cleared of my concerns.
I request anyone of you to provide me info on the below queries.
1) Is ABAP knowledge helpfull in SAP XI projects.
2) Is it possible to build the mapping logic in ABAP.
3) Is it mandatory to learn Java.
4) Will my knowledge on ALE/IDOCs and workflow will someway be helpfull to me in SAP XI.
5)4) Finally, Is XI recommened for an ABAP developer?
Thanks,
Ram.

Hi,
1) Is ABAP knowledge helpfull in SAP XI projects.
Most definately. As loads of time we have SAP as one of the interacting system. so your work is always easier in case of any middleware application if u know hte application system interacting.
2) Is it possible to build the mapping logic in ABAP.
yes u can. check this link:
http://help.sap.com/saphelp_nw04/helpdata/en/10/5abb2d9df242f6a62e22e027a6c382/content.htm
3) Is it mandatory to learn Java.
U don't need to be a guru but basic knowledge is going to really help.
4) Will my knowledge on ALE/IDOCs and workflow will someway be helpfull to me in SAP XI.
Very. Business process engine in SAP XI uses Workflow.
5)4) Finally, Is XI recommened for an ABAP developer?
this is one of the new end technology. so yes I guess
Regards
Vijaya

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