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:
Mar. 05, 2002
Filed:
Apr. 30, 1997
Michael D. McKeehan, Rochester, MN (US);
Andre Tost, Hannover, DE;
Erik E. Voldal, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An access mechanism and method for accessing objects in a distributed object system manages object accesses and causes all accesses within one transaction to be to either the home object or the local copy, whichever is accessed first. When an object is accessed for the first time in a given transaction, the requested access is granted. For example, if home access is requested to an object in a different process, a proxy is created to access the object in its home location. When the object is subsequently accessed within the same transaction, the access mechanism ensures that the same access is used to assure that changes are not being made to a home object and a local copy or to more than one local copy simultaneously. In an alternative embodiment an exception may be generated if the requested access cannot be provided.