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1. (WO1999039284) A METHOD FOR SYNCHRONIZING THE SCHEMA OF A DATABASE WITH ITS REPRESENTATION IN AN OBJECT-ORIENTED REPOSITORY

Pub. No.:    WO/1999/039284    International Application No.:    PCT/US1999/001817
Publication Date: Aug 5, 1999 International Filing Date: Jan 28, 1999
IPC: G06F 12/00
G06F 17/30
Applicants: UNISYS CORPORATION
Inventors: SRINIVASAN, Uppili, Rangarajan
TARDIVEAU, Max
Title: A METHOD FOR SYNCHRONIZING THE SCHEMA OF A DATABASE WITH ITS REPRESENTATION IN AN OBJECT-ORIENTED REPOSITORY
Abstract:
The present invention is an object-oriented apparatus stored in the memory of a computer system for executing a method for synchronizing schemas between a database and an object-oriented repository. The method includes the steps of reading catalog information for an object on which the method is invoked; retrieving properties of the object from the database and comparing it with properties of another object within the repository; determining if there are any differences. If no differences the method determines if the object is a composite object, and if so; determines if there are more contained objects, and if so; all of the steps above are repeated. If it is determined that there are differences, then the method creates a new version of the object in the repository with new properties; and, determines if the object is a composite object, and if so, it determines if there are more contained objects; and if so, all of the steps above are repeated.