java - Cache a variable temporarily or for few minutes -


how cache variable temporarily or few minutes in java?

i need use variable temporarily few minutes hitting database cause huge performance impact.

the problem have db configuration value can changed user. such change needs captured without re-starting server.

so finding option on how cache variable temporarily or few minutes in java. after 5 or 10 minutes interval can clear cache.

something jcf.

how linkedhashmap , customizing removeeldestentry .

caveat being method invoked on puts.


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