Electrical computers and digital processing systems: interprogra – Event handling or event notification
Reexamination Certificate
2011-05-31
2011-05-31
Ho, Andy (Department: 2194)
Electrical computers and digital processing systems: interprogra
Event handling or event notification
C707S802000
Reexamination Certificate
active
07954110
ABSTRACT:
An application programming interface is provided in an object-oriented programming platform for developing applications. A method comprises registering a first object with a second object to observe one or more properties associated with the second object, the second object having a set of methods associated therewith and replacing a first implementation of a method in the set of methods associated with the second object with a second implementation of the method that automatically sends a notification to the first object. The observable objects need not explicitly invoke the observer notifications, avoiding writing of a large amount of code. These observer notifications need only be sent for objects that are actually being observed but are related objects, substantially reducing the performance overhead of needless invocations of the observer notifications without limiting binding between objects.
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Lue-Sang Ronald D.
Ozer Ali T.
Piccirelli Mark A.
Wendker Andreas W.
Apple Inc.
Ho Andy
Hoang Phuong N
Williams Morgan & Amerson P.C.
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