Abstract :
A complete description of the O2 system, an object-oriented database system, is presented. It has the functionality of a DBMS (persistence, disk management, sharing and query language) and of an object-oriented system (complex objects, object identity, encapsulation, typing, inheritance, overriding, extensibility, and completeness). It also includes a set of user interface generation tools and a complete programming environment. O2 supports a multilanguage paradigm and a dual mode of operation (development and execution) and it operates on a workstation/server configuration. The system is described as seen from the programmer´s point of view and as seen through the programming environment. A complete description of the implementation is given. An evaluation of the prototype performance is also given
Keywords :
database management systems; object-oriented programming; query languages; DBMS; O2; complete programming environment; completeness; complex objects; disk management; dual mode; encapsulation; extensibility; inheritance; multilanguage paradigm; object identity; object-oriented database system; overriding; persistence; programming environment; prototype performance; query language; sharing; typing; user interface generation tools; workstation/server configuration;
