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@Beta public static interface AbstractCache.StatsCounter
Accumulates statistics during the operation of a Cache for presentation by Cache.stats(). This is solely intended for consumption by Cache implementors.
| Method Summary | |
|---|---|
void |
recordEviction()
Records the eviction of an entry from the cache. |
void |
recordHits(int count)
Records cache hits. |
void |
recordLoadException(long loadTime)
Records the failed load of a new entry. |
void |
recordLoadSuccess(long loadTime)
Records the successful load of a new entry. |
void |
recordMisses(int count)
Records cache misses. |
CacheStats |
snapshot()
Returns a snapshot of this counter's values. |
| Method Detail |
|---|
void recordHits(int count)
count - the number of hits to recordvoid recordMisses(int count)
Cache lookup methods with
the same key on an absent value should result in a single call to either
recordLoadSuccess or recordLoadException and multiple calls to this method,
despite all being served by the results of a single load operation.
count - the number of misses to recordvoid recordLoadSuccess(long loadTime)
#recordConcurrentMiss, this method should only be called by the loading thread.
loadTime - the number of nanoseconds the cache spent computing or retrieving the new
valuevoid recordLoadException(long loadTime)
#recordConcurrentMiss, this method should only be called by the loading thread.
loadTime - the number of nanoseconds the cache spent computing or retrieving the new
value prior to an exception being thrownvoid recordEviction()
CacheStats snapshot()
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