Asvin Ananthanarayan

US Patent:

20110283295, Nov 17, 2011

Filed:

May 11, 2010

Appl. No.:

12/777259

Inventors:

Mohamed H. Ali - Kirkland WA, US
Tomer Verona - Redmond WA, US
Balan Sethu Raman - Redmond WA, US
Beysim Sezgin - Redmond WA, US
Jonathan D. Goldstein - Kirkland WA, US
Badrish Chandramouli - Bellevue WA, US
Ping Wang - Sammamish WA, US
Roman Schindlauer - Seattle WA, US
Asvin Ananthanarayan - Redmond WA, US

Assignee:

Microsoft Corporation - Redmond WA

International Classification:

G06F 9/46

US Classification:

719318

Abstract:

An extensibility framework that allows a user to write user-defined modules that include user-defined operators (UDO) and user-defined aggregators (UDA) in a non-temporal fashion without the need to worry about temporal attributes of events (or event types). The temporal domain is managed on behalf of the user, and allows the user to write operators and aggregates in the temporal data streaming domain as well as to port existing libraries of non-temporal UDOs/UDAs to the temporal data streaming domain. Temporal attributes and event types are managed for non-temporal UDOs/UDAs by the extensibility framework on behalf of the UDO/UDA writer. Windows can be employed to bridge the gap between the non-temporal domains and temporal domains. Support for complex event processing (CEP) is provided in UDOs/UDAs for base classes related to a CEP operator, CEP aggregate, CEP time sensitive operator, and CEP time sensitive aggregate.