The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1999
Filed:
Jan. 30, 1998
Fred Arthur Cummins, Farmington Hills, MI (US);
Electronic Data System Corporation, Plano, TX (US);
Abstract
The invention comprises a system and method for maintaining the integrity of a plurality of objects each comprising methods and instance variables. The method is used to maintain the integrity of a plurality of objects wherein each of the plurality of objects will experience a change in at least one of its instance variables in response to a transaction if the transaction is allowed to commit. The method comprises sending a validate message to ones of the plurality of objects using a transaction service running on a computer. A prepare message is sent to each of the plurality of objects if a valid indicator was received in response to each validate message. A commit message is sent to each of the plurality of objects if a valid indicator was received in response to each of the validate messages and a prepared indicator was received in response to each of the prepare messages.