Data processing system and method for processing an object oriented development environment employing property inheritance using prototypical objects
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United States of America Patent
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Mar 24, 1998
Grant Date -
N/A
app pub date -
Jan 23, 1995
filing date -
Jan 23, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and system which provides a prototypical object which can be copied to create a derived object. A derived object can contain attribute values or it can hold a reference to its prototypical object. If a required value is not held by the prototypical object, the present invention discloses a scheme by which the object searches up an object hierarchy to find the required attribute. In addition, each object can register an interest in a prototypical object that contains required attributes. If an attribute of a prototypical object changes, the prototypical object informs all registered objects of the change. At runtime, the prototypical object becomes a master object whose attribute values can be changed by the user, changes in master object attributes are propagated to all registered derived objects.
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