[Opensymphony-oscache] OsCache Refresh

Thanks, but this raises another question.

How does a REFRESH INTERVAL differ from a CRON EXPRESSION.

How can cron expression it be used to do an AUTOMATIC refresh?

e.g.: @ 10 AM, i pulled some data from database, created a object (List) & stored it in the cache - using GeneralCacheAdministrator.putInCache method.

Whenever users ask for this data, its fetched from the cache - using GeneralCacheAdministrator.getFromCache() method.

What I need is - Whether or not user asks for data, the data should get refreshed in the cache - for this I may set the refresh period of 30 mins. How can a cron expression help me with this?

No matter what, to get data from cache, I have to call the GeneralCacheAdministrator.getFromCache() method with keyName & either refreshInterval &/or cron expression.

The functioanlity I am looking for is something like a "Background Thread" which checks if the data is stale & refreshes it. Is this readily available in OSCache?

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