3. A method as recited in claim 1 , further comprising receiving an indication that said change has been made to said data bearing object.
3. A method as recited in claim 1 , further comprising receiving an indication that said change has been made to said data bearing object. 4. A method as recited in claim 3 , wherein said indication that the data bearing object expects to undergo the change is sent in response to an event that initiates execution of application code and said indication that said change has been made comprises an indication that execution of said application code has ended.