Extending usages of cached data objects beyond cache expiration periods

One or more non-transitory computer readable media storing a program of instructions that is executable by a device to perform:

• receiving, from a data object requester, a request for retrieving a cached data object from a data object cache used to cached data objects retrieved from one or more primary data sources, wherein the cached data object in the data object cache is still within an extended time period after expiration;
• determining whether the cached data object is designated to implement a state change based cache invalidation strategy;
• in response to determining that the cached data object is designated to implement a state change based cache invalidation strategy, performing:
• determining whether the cached data object is free of a cache invalidity state change caused by a data change operation;
• in response to determining that the cached data object is free of a cache invalidity state change, returning the cached data object to the data object requester.

A system, comprising:

• one or more computing processors;
• one or more non-transitory computer readable media storing a program of instructions that is executable by the one or more computing processors to perform:
• receiving, from a data object requester, a request for retrieving a cached data object from a data object cache used to cached data objects retrieved from one or more primary data sources, wherein the cached data object in the data object cache is still within an extended time period after expiration;
• determining whether the cached data object is designated to implement a state change based cache invalidation strategy;
• in response to determining that the cached data object is designated to implement a state change based cache invalidation strategy, performing:
• determining whether the cached data object is free of a cache invalidity state change caused by a data change operation;
• in response to determining that the cached data object is free of a cache invalidity state change, returning the cached data object to the data object requester.