com.launchdarkly.sdk.server.interfaces

Class DataStoreStatusProvider.CacheStats

java.lang.Object

com.launchdarkly.sdk.server.interfaces.DataStoreStatusProvider.CacheStats

Enclosing interface:

DataStoreStatusProvider

public static final class DataStoreStatusProvider.CacheStats
extends java.lang.Object

A snapshot of cache statistics. The statistics are cumulative across the lifetime of the data store.

This is based on the data provided by Guava's caching framework. The SDK currently uses Guava internally, but is not guaranteed to always do so, and to avoid embedding Guava API details in the SDK API this is provided as a separate class.

Since:

4.12.0

See Also:

DataStoreStatusProvider.getCacheStats(), PersistentDataStoreBuilder.recordCacheStats(boolean)

Constructor Summary

Constructors

Constructor and Description
CacheStats(long hitCount, long missCount, long loadSuccessCount, long loadExceptionCount, long totalLoadTime, long evictionCount) Constructs a new instance.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
long	getEvictionCount() The number of times cache entries have been evicted.
long	getHitCount() The number of data queries that received cached data instead of going to the underlying data store.
long	getLoadExceptionCount() The number of times that an error occurred while querying the underlying data store.
long	getLoadSuccessCount() The number of times a cache miss resulted in successfully loading a data store item (or finding that it did not exist in the store).
long	getMissCount() The number of data queries that did not find cached data and went to the underlying data store.
long	getTotalLoadTime() The total number of nanoseconds that the cache has spent loading new values.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CacheStats

public CacheStats(long hitCount,
                  long missCount,
                  long loadSuccessCount,
                  long loadExceptionCount,
                  long totalLoadTime,
                  long evictionCount)

Constructs a new instance.

Parameters:

hitCount - number of queries that produced a cache hit

missCount - number of queries that produced a cache miss

loadSuccessCount - number of cache misses that loaded a value without an exception

loadExceptionCount - number of cache misses that tried to load a value but got an exception

totalLoadTime - number of nanoseconds spent loading new values

evictionCount - number of cache entries that have been evicted

Method Detail

getHitCount

public long getHitCount()

The number of data queries that received cached data instead of going to the underlying data store.

Returns:

the number of cache hits

getMissCount

public long getMissCount()

The number of data queries that did not find cached data and went to the underlying data store.

Returns:

the number of cache misses

getLoadSuccessCount

public long getLoadSuccessCount()

The number of times a cache miss resulted in successfully loading a data store item (or finding that it did not exist in the store).

Returns:

the number of successful loads

getLoadExceptionCount

public long getLoadExceptionCount()

The number of times that an error occurred while querying the underlying data store.

Returns:

the number of failed loads

getTotalLoadTime

public long getTotalLoadTime()

The total number of nanoseconds that the cache has spent loading new values.

Returns:

total time spent for all cache loads

getEvictionCount

public long getEvictionCount()

The number of times cache entries have been evicted.

Returns:

the number of evictions

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object