Recovery objects in an object oriented computing environment
Patent 5151987 Issued on September 29, 1992. Estimated Expiration Date: 
October 23, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 23, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSystem for merging virtual partitions of a distributed database Patent #: 4853843 InventorsApplicationNo. 602443 filed on 10/23/1990US Classes:714/20Plural recovery data sets containing set interrelation data (e.g., time values or log record numbers)ExaminersPrimary: Canney, Vincent P.Attorney, Agent or FirmInternational ClassesG06F 015/00G06F 012/00 AbstractThe present invention is directed to systems and methods for recovering from unplanned failures in object oriented computing environments. The systems and methods of the present invention recover from unplanned failures in an efficient manner by storing recovery information in recovery objects. During recovery operations from an unplanned failure, object instance methods (which were abnormally terminated by the unplanned failure) use the recovery information to identify committable actions which were executed prior to the unplanned failure. The object instance methods then execute committable actions which were not executed prior to the unplanned failure. Thus, according to the present invention, the committable actions which were executed prior to the unplanned failure are not re-executed, and the committable actions which were not executed prior to the planned failure are executed.Other References
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