Data cache class template with element life time limitation. Stores items of raw data, either of fixed or dynamic size. When the life time of an item, which is the difference between its creation time and the current wall clock time, has expired, it is removed automatically on the next getAndRefreshValue()/exists() access.
Expiring (L)east (R)ecently (U)sed Cache.
Extends the Cache by providing a settable lifetime and automatically removing elements where the difference between the current time and the createtime is greater than that lifetime value.