Invalidating cached data using secondary keys

Details Invalidating cached data using secondary keys Invalidating cached data using secondary keys

2006-07-11

2006-07-11

Anderson, Matthew D. (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S133000, C711S144000, C709S203000, C707S793000

Reexamination Certificate

active

07076608

ABSTRACT:
A system and method for facilitating the invalidation of cached data, in which the data to be invalidated are identified using information other than a primary key. The primary key for a cached data object, such as a web page, may be a Uniform Resource Locator (URL). Instead of using an object's URL to identify to a cache the data to be invalidated, a secondary key is used, such as the object's data source or a template from which the object was created. An application communicates the secondary key to a cache, and the cache identifies cached objects that match the secondary key. Those data objects are then invalidated without having to issue multiple invalidation messages from the application.

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