Stream operator

US8683074B2 · kind B2 · utility

Assignee

• Microsoft Corporation · US

Inventors

• Colin Joseph Meek · Ann Arbor, US
• Mohamed H. Ali · Kirkland, US
• Galex Sunyul Yen · Issaquah, US
• Ciprian Gerea · Seattle, US
• Balan Sethu Raman · Redmond, US
• Jonathan D. Goldstein · Kirkland, US
• Badrish Chandramouli · Bellevue, US
• Tomer Verona · Redmond, US
• Torsten Grabs · Seattle, US

Key dates

• Filing date: May 16, 2011
• Grant date: Mar 25, 2014
• Expiry date: Jan 24, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F9/542
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Aspects of the subject matter described herein relate to stream operators. In aspects, a stream event is received. Based on a timestamp associated with the stream event and the number of stream operators that have asked to be activated prior to or at the timestamp, zero or more stream objects are informed of one or more time events and torn down if no longer needed. In addition, a destination stream operator is instantiated, if needed, data (e.g., the timestamp and packet, if any) corresponding to the stream event is provided to a stream operator, output data, if any, is received from the stream operator, and the stream operator is torn down if it no longer needs state data between invocations.