Extensibility model for stream-based operators and aggregates

US8381233B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

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

Key dates

• Filing date: May 11, 2010
• Grant date: Feb 19, 2013
• Expiry date: Apr 22, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F8/24
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

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.