Object-oriented apparatus and method for controlling accesses to objects in a distributed object environment
US6353859B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Mar 5, 2002 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/541
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.