Answer Posted / sanjay
when a user login to a system the user contex data has been
collected from the data base to Roll Buffer, Roll File.
when user execute any transaction the user data are loaded
to the workprocess roll memory from the roll buffer/file.
this is known as roll-in. and
after the completrion of one dialog LUW the roll data
rolled out to the roll buffer. this is known roll-out.
this method is used for the dialog multiplexing, means the
dialog wp make free to accept any other dialog request.
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