Method and apparatus for automatic generation of object oriented code for mapping relational data to objects
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United States of America Patent
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Mar 12, 1996
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app pub date -
Mar 22, 1995
filing date -
Jul 21, 1993
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Abstract
A method and apparatus are provided for using an object model of an object-oriented application to automatically map information between an object-oriented application and a structured database, such as a relational database. This is done by taking into account all of the semantics (implications) of an object model, such as inheritance and relationships among object classes, and using these semantics to generate a minimal set of routines for each object class that manipulate the object and other objects to which it is related or from which it inherits. The generated routines, when executed, provide transparent access to relational data or other field-delimited data. Object classes and routines generated using the method encapsulate all the details of database access, such that developers (computer programmers) can write object-oriented applications using those object classes without any explicit reference to or knowledge of the underlying database or its structure. By working with the objects, the user of such applications transparently manipulates the database without needing to know anything of its structure. Applications can be written using the object classes to transparently integrate information from multiple databases.
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