BNZObserverRecord
Abstract: an internal class used by the BNZTransactionalNotificationCenter to manage registrations
This class is used by the BNZTransactionalNotificationCenter to manage
registrations of objects to be informed about changes on certain other objects. The
objects that want to be informed are called "TransactionObserver", because they participate in the
commit phase of all transactions that contains a change they registered for.
This class holds the observer reference and manages the individual
observation record objects that are created whenever a registerTransactionObserver in
BNZTransactionalNotificationCenter is called.
For each observer, the BNZTransactionalNotificationCenter maintains one
observer record to contain all its single observation records.
(Last Updated 8/31/2006)
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