Method and system for event notification between software application program objects
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United States of America Patent
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Mar 11, 2003
Issued Date -
N/A
app pub date -
Nov 13, 1997
filing date -
Nov 17, 1994
priority date (Note) -
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Abstract
The present invention is a computer implemented system and method for providing event notification between a first application program object and a second application program object where the event is associated with a transition of the second application program object. The invention includes a stateful object (2a) for providing a set of news types (1d) associated with the event and an interest object (2d) for generating a set of interests (1e), each of the interests associating the first application program object with one of the news types. The stateful object (2a) is also for generating, in response to the transition of the second application program object, a news object (2f), the news object describing the event associated with the transition of the second application program object. The system also includes a dispatcher (2g) for dispatching the news object to the first application program object in accordance with the interest of the first application program object in the news type associated with the event described by the news object (2f) thereby providing notification of the event to the first application program object.
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