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Abstract

A query object generator tool is used to generate interface definitions and source code which implement a database query object. The tool allows a client to construct a query object without being familiar with the underlying database language and without being concerned with programming details such as concurrency problems and connection management. The tool consists of an internal state object which represents the query object, including information which can be saved to reconstruct the query object at a later date, and code generator objects which generate the code required to implement the query object defined by the internal state object. In a preferred embodiment, the code generator objects are arranged in a hierarchy so that a generator object can be instantiated which generator object is specific to the database to be accessed and the language to which the implementation is targeted. An optional graphic user interface (GUI) may also be provided to allow a user to interact with the tool.

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First Claim