Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-10-24
2006-10-24
Pannala, Sathyanarayan (Department: 2164)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000, C707S793000, C707S793000
Reexamination Certificate
active
07127474
ABSTRACT:
The present invention creates a model that maps object classes in an object-oriented environment to a data source. The model maps the relationship between properties of each object class and data of the data source. The present invention can be used with a data source such as a relational database, user interface, file system, or object-oriented database. An application's object classes and data source schema are designed independent of the other since the model can be used to map one to the other. The model is comprised of entities and attributes. An entity maps to an object class and to at least one table of the DBMS. An entity contains attributes either simple or derived. A simple attribute maps to a DBMS column. A derived attribute is a combination of other attributes and does not directly map to a DBMS column. A relationship creates a link between entities of the model. A relationship can be used to flatten an attribute or flatten a relationship. A flattened attribute is an attribute of one entity that is added to another entity. A flattened relationship is created by the elimination of intermediate relationships between two entities. Relationships can be either unidirectional or bi-directional. A unidirectional relationship has a single traversal path that has a source entity and a destination. A bi-directional relationship has two traversal paths. A reflexive relationship can be created using a single entity. The model is used to synchronize object properties and the data of the data source.
REFERENCES:
patent: 5261065 (1993-11-01), Urabe et al.
patent: 5265206 (1993-11-01), Shackelford et al.
patent: 5291583 (1994-03-01), Bapat
patent: 5317742 (1994-05-01), Bapat
patent: 5499371 (1996-03-01), Henninger et al.
patent: 5542078 (1996-07-01), Martel et al.
patent: 5550971 (1996-08-01), Brunner et al.
patent: 5596746 (1997-01-01), Shen et al.
patent: 5606700 (1997-02-01), Anthias et al.
Greenfield Jack
Upson Linus
Willhite Daniel
Williamson Richard
Apple Computer Inc.
Pannala Sathyanarayan
Van Pelt & Yi & James LLP
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