Legacy subclassing
US5956730A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1997 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Aug 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99948
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for mapping between relational schema and object schema, wherein the relational schema includes a table having a tiebreaker column. In accordance with the present invention, an object-oriented application program may instantiate a persistent dependent object with one of two or more specific instances that is selected in response to the value of a data element in a tiebreaker column. Alternatively, an object-oriented application program may instantiate a persistent entity object in accordance with one of two or more entity classes that is selected in response to the value of a data element in a tiebreaker column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.