Method for storing Boolean functions to enable evaluation, modification, reuse, and delivery over a network
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United States of America Patent
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Jun 21, 2005
Grant Date -
Aug 14, 2003
app pub date -
Jul 19, 2002
filing date -
Aug 15, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Data structures for storing subscription predicates for transmission in a publish-subscribe network. Subscriptions include Boolean-valued predicates defining content desired by a subscriber. An agent application converts the predicates into a suitable form for storing them in a common data structure. The predicates are used to generate filters to encapsulate the subscriptions, and the filters are specified in the data structure in addition to the Boolean relationships of the predicates. Routers in a network core use the data structure for content-based routing, which involves applying attributes in received packets to the filters.
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