System for preserving message order

System for preserving message order

The order of messages in an asynchronous message system is preserved, by generating a message and tagging the generated message with a sequence identifier and a sequence number. The order of messages is further preserved by processing the tagged message by checking a log to determine whether the seq...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUAREZ VICENTE ROSSELLI, PARKINSON IAN WESTBROOK, WALLIS GRAHAM DEREK
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR
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Beschreibung
Zusammenfassung:The order of messages in an asynchronous message system is preserved, by generating a message and tagging the generated message with a sequence identifier and a sequence number. The order of messages is further preserved by processing the tagged message by checking a log to determine whether the sequence identifier is in the log, sending the tagged message to a selected consumer if the sequence identifier is not in the log and sending the tagged message to a particular consumer if the sequence identifier is in the log. Still further, the order of messages is preserved by writing an entry to the log having the sequence identifier and the sequence number of the tagged message and a consumer identifier of the selected consumer if the sequence identifier of the tagged message is not in the log.