Checkpointing iterators during search
US8738598B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2012 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/951
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Tools and techniques are described herein for checkpointing iterators during search. These tools may provide methods that include instantiating iterators in response to a search request. The iterators include fixed state information that remains constant over a life of the iterator, and further include dynamic state information that is updated over the life of the iterator. The iterators traverse through postings lists in connection with performing the search request. As the iterators traverse the posting lists, the iterators may update their dynamic state information. The iterators may then evaluate whether to create checkpoints, with the checkpoints including representations of the dynamic state information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.