Uniform access to and interchange between objects employing a plurality of access methods
US6182155A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jan 2, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/548
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Uniform access to and interchange between objects with use in any environment that supports interface composition through interface inheritance and implementation inheritance from a common base class is provided. Proxies are used to provide both cross-language and remote access to objects. The proxies and the local implementations for objects share a common set of interface base classes, so that the interface of a proxy for an object is indistinguishable from a similar interface of the actual implementation. Each proxy is taught how to deal with call paramters that are proxies of the other kind. A roster of language identifiers is developed, and a method is added to each object implementation which, when called, checks whether it matches the language that the object implementation is written in. If so, it returns a direct pointer to the object implementation. Common client coding can then be used to deal with both same language and cross-language calls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.