com.sap.cloud.sdk.cloudplatform.cache

Class CacheStats

java.lang.Object

com.sap.cloud.sdk.cloudplatform.cache.CacheStats

All Implemented Interfaces:

CacheStatsMXBean

public class CacheStats
extends Object
implements CacheStatsMXBean

POJO implmentation of the CacheStatsMXBean interface.

Constructor Summary

Constructors

Constructor and Description
CacheStats(long cacheSize, long hitCount, long missCount, long loadSuccessCount, long loadExceptionCount, long totalLoadTime, long evictionCount)

Method Summary

Modifier and Type	Method and Description
protected boolean	canEqual(Object other)
boolean	equals(Object o)
long	getCacheSize()
long	getEvictionCount() Returns the number of times an entry has been evicted.
long	getHitCount() Returns the number of times com.google.common.cache.Cache lookup methods have returned a cached value.
long	getLoadExceptionCount() Returns the number of times com.google.common.cache.Cache lookup methods threw an exception while loading a new value.
long	getLoadSuccessCount() Returns the number of times com.google.common.cache.Cache lookup methods have successfully loaded a new value.
long	getMissCount() Returns the number of times com.google.common.cache.Cache lookup methods have returned an uncached (newly loaded) value, or null.
long	getTotalLoadTime() Returns the total number of nanoseconds the cache has spent loading new values.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheStats

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

Method Detail

getCacheSize

public long getCacheSize()

getHitCount

public long getHitCount()

Description copied from interface: CacheStatsMXBean

Returns the number of times com.google.common.cache.Cache lookup methods have returned a cached value.

Specified by:

getHitCount in interface CacheStatsMXBean

Returns:

The number of successful cache lookups.

See Also:

com.google.common.cache.CacheStats#hitCount()

getMissCount

public long getMissCount()

Description copied from interface: CacheStatsMXBean

Returns the number of times com.google.common.cache.Cache lookup methods have returned an uncached (newly loaded) value, or null. Multiple concurrent calls to com.google.common.cache.Cache lookup methods on an absent value can result in multiple misses, all returning the results of a single cache load operation.

Specified by:

getMissCount in interface CacheStatsMXBean

Returns:

The number of cache lookup misses.

See Also:

com.google.common.cache.CacheStats#missCount()

getLoadSuccessCount

public long getLoadSuccessCount()

Description copied from interface: CacheStatsMXBean

Returns the number of times com.google.common.cache.Cache lookup methods have successfully loaded a new value. This is usually incremented in conjunction with CacheStatsMXBean.getMissCount(), though getMissCount is also incremented when an exception is encountered during cache loading (see CacheStatsMXBean.getLoadExceptionCount()). Multiple concurrent misses for the same key will result in a single load operation. This may be incremented not in conjunction with getMissCount if the load occurs as a result of a refresh or if the cache loader returned more items than was requested. getMissCount may also be incremented not in conjunction with this (nor CacheStatsMXBean.getLoadExceptionCount()) on calls to getIfPresent.

Specified by:

getLoadSuccessCount in interface CacheStatsMXBean

Returns:

The number of successful loads of new cache entries.

See Also:

com.google.common.cache.CacheStats#loadSuccessCount()

getLoadExceptionCount

public long getLoadExceptionCount()

Description copied from interface: CacheStatsMXBean

Returns the number of times com.google.common.cache.Cache lookup methods threw an exception while loading a new value. This is usually incremented in conjunction with getMissCount, though getMissCount is also incremented when cache loading completes successfully (see CacheStatsMXBean.getLoadSuccessCount()). Multiple concurrent misses for the same key will result in a single load operation. This may be incremented not in conjunction with getMissCount if the load occurs as a result of a refresh or if the cache loader returned more items than was requested. getMissCount may also be incremented not in conjunction with this (nor CacheStatsMXBean.getLoadSuccessCount()) on calls to getIfPresent.

Specified by:

getLoadExceptionCount in interface CacheStatsMXBean

Returns:

The number of exception during the load of new cache entries.

See Also:

com.google.common.cache.CacheStats#loadExceptionCount()

getTotalLoadTime

public long getTotalLoadTime()

Description copied from interface: CacheStatsMXBean

Returns the total number of nanoseconds the cache has spent loading new values. This can be used to calculate the miss penalty. This value is increased every time getLoadSuccessCount or getLoadExceptionCount is incremented.

Specified by:

getTotalLoadTime in interface CacheStatsMXBean

Returns:

The total time spent loading new values, in nanoseconds.

See Also:

com.google.common.cache.CacheStats#totalLoadTime()

getEvictionCount

public long getEvictionCount()

Description copied from interface: CacheStatsMXBean

Returns the number of times an entry has been evicted. This count does not include manual invalidations.

Specified by:

getEvictionCount in interface CacheStatsMXBean

Returns:

The number of automatic eviction of entries.

See Also:

com.google.common.cache.CacheStats#evictionCount()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

canEqual

protected boolean canEqual(Object other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object