International Business Machines Corporation

Thomas P Moorman

Robert L Abraham

Michael P Priven

Floyd W Shackelford

Richard E Moore

April D Stiles

Jane E Schrock

In an Object Oriented Programming System, a Communications Interface Packet (CIP) enables processing in either a remote system or in a batch environment. A CIP is an object in an Object Oriented Programming System, and like any other object, the CIP object contains data or attributes surrounded by or encapsulated by methods or actions for those data or attributes. Unique to a CIP, however, are attributes which contain an action, an object and parameters. An Application Programming Interface (API) method enables remote processing. An IPA method, which is the reverse of the API method, creates the CIP object which is to be executed in a remote or batch system through the application programming interface. After a CIP object has been created, it must be flattened or formatted prior to submission to the batch system or prior to sending the CIP object to a remote system. Flattening or formatting puts the CIP object into a flat sequential file known as a product data interface (PDIF) file for use by either the remote or batch system. The PDIF file includes three major sections known as the administrative header section, the data dictionary section, and the object data section.

Remote and batch processing in an object oriented programming system

The 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.

Recovery objects in an object oriented computing environment

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Atlanta, GA, United States of America

Thomas P Moorman