The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2013
Filed:
Sep. 23, 2011
Anand Srinivasan, Karnataka, IN;
Namit Jain, Santa Clara, CA (US);
Shailendra Kumar Mishra, Fremont, CA (US);
Anand Srinivasan, Karnataka, IN;
Namit Jain, Santa Clara, CA (US);
Shailendra Kumar Mishra, Fremont, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A data stream management system (DSMS) is designed to support a new user-defined function, by creating and using at least two structures as follows. A first structure ('metadata entry') is created in response to a command for creation of the new function, and maps a single instance of a class to the function's name. A second structure is created with creation of an operator on receipt of each new continuous query that uses the new function. The second structure ('operator specific data structure') contains a path to the newly-created instance, which path is obtained by looking up the first structure. Additional second structures are created on receipt of additional continuous queries which use the new function, but all second structures contain the same path. All continuous queries use the same instance. Repeated use of a single instance to compile and execute multiple queries eliminates repeated instantiation of the same function.