Unified window support for event stream data management
US8180801B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Apr 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data stream query mediation may utilize a query handler configured to receive a query from a stream application to be applied against a stream of data including multiple tuples representing events. A stream window manager may be configured to express the query in a specification which defines a window including a subset of the tuples, the specification defining content of the window as a range of the tuples having a range attribute over which the content is specified, defining when to update the window using a synchronization attribute specifying a movement of the window over time with respect to the content, and defining an evaluation of the content of the window using an evaluation attribute specifying when to perform the evaluation. A query translator may be configured to translate the query including mapping the range attribute, the synchronization attribute, and the evaluation attribute to a stream processing language of a data stream management system (DSMS), to thereby obtain a translated query. A DSMS mediator may be configured to provide the translated query to the DSMS for processing therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.