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AssigneeInternational Business Machines Corporation
InventorsGuruduth S. Banavar, Robert E. Strom, Daniel C. Sturman, Wei Tao
Estimating the term…
A technique for optimizing published event message sequences destined for information subscribers in an information processing system. Subscribers specify event interpretation rules which map event message streams into states. The event interpretation rules are maintained elsewhere in the system in preparation for providing optimized, possibly shorter, event message streams to subscribers, sufficient to correctly update the states. If a subscriber temporarily loses access to its event message stream, the optimized event message stream is determined using a shortest path graph search technique between the states defined by the start and end of the missing portion of the stream. Optimizations to the shortest path graph search technique are disclosed for use when the event interpretation rule is in replacement form, in which estimator functions based on extended rules are employed.
In an event message handling system, in which a subscriber node specifies an event interpretation rule for mapping an event message stream into a first state, a method comprising:
In an event handling system in which a subscriber node receives an event message stream from which it updates a first state therein according to an event interpretation rule, a method comprising:
In an event message handling system in which a subscriber node receives an event message stream having a state defined by an event interpretation rule, a method for preserving the state of the event message stream, comprising:
A method of delivering an equivalent event stream to a subscriber from one or more information providers in an event distribution system, in which said subscriber specifies an event stream interpretation rule that maps sequences of events to states, and said equivalent event stream maps to the same state as the sequence of events published by said one or more information providers, wherein said equivalent event stream is a relevant summary of the published sequence of events based on the event stream interpretation rule.
In an event message handling system, in which a subscriber node specifies an event interpretation rule for mapping an event message stream into a first state, a system comprising:
In an event handling system in which a subscriber node receives an event message stream from which it updates a first state therein according to an event interpretation rule, a system comprising:
In an event message handling system in which a subscriber node receives an event message stream having a state defined by an event interpretation rule, a system for preserving the state of the event message stream, comprising:
An article of manufacture comprising a computer useable medium having computer readable program code means embodied therein for an event message handling system, in which a subscriber node specifies an event interpretation rule for mapping an event message stream into a first state, the article of manufacture comprising:
An article of manufacture comprising a computer useable medium having computer readable program code means embodied therein for an event handling system in which a subscriber node receives an event message stream from which it updates a first state therein according to an event interpretation rule, the article of manufacture comprising:
An article of manufacture comprising a computer useable medium having computer readable program code means embodied therein for an event message handling system in which a subscriber node receives an event message stream having a state defined by an event interpretation rule, the article of manufacture for preserving the state of the event message stream, comprising:
Dependencies are inferred from the claim text.