Package org.infinispan.container.entries

Class CacheEntrySizeCalculator<K,V>

java.lang.Object

org.infinispan.commons.util.AbstractEntrySizeCalculatorHelper<K,InternalCacheEntry<K,V>>

org.infinispan.container.entries.CacheEntrySizeCalculator<K,V>

Type Parameters:

K - The type of the key

V - The type of the value

All Implemented Interfaces:

EntrySizeCalculator<K,InternalCacheEntry<K,V>>, org.infinispan.container.impl.KeyValueMetadataSizeCalculator<K,V>

public class CacheEntrySizeCalculator<K,V>
extends AbstractEntrySizeCalculatorHelper<K,InternalCacheEntry<K,V>>
implements org.infinispan.container.impl.KeyValueMetadataSizeCalculator<K,V>

Implementation of a size calculator that calcultes only the size of the value assuming it is an InternalCacheEntry. This delegates the calculation of the key and the value contained within the InternalCacheEntry to the provided SizeCalculator.

Since:

8.0

Author:

William Burns

Field Summary

Fields inherited from class org.infinispan.commons.util.AbstractEntrySizeCalculatorHelper

OBJECT_SIZE, POINTER_SIZE

Constructor Summary

Constructors

Constructor	Description
CacheEntrySizeCalculator(EntrySizeCalculator<? super K,? super V> calculator)

Method Summary

Modifier and Type	Method	Description
long	calculateSize(K key, InternalCacheEntry<K,V> ice)	Method used to calculate how much memory in size the key and value use.
long	calculateSize(K key, V value, Metadata metadata)	Method used to calculate how much memory in size the key, value and metadata use.

Methods inherited from class org.infinispan.commons.util.AbstractEntrySizeCalculatorHelper

roundUpToNearest8

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CacheEntrySizeCalculator

public CacheEntrySizeCalculator(EntrySizeCalculator<? super K,? super V> calculator)

Method Detail

calculateSize

public long calculateSize(K key,
                          InternalCacheEntry<K,V> ice)

Description copied from interface: EntrySizeCalculator

Method used to calculate how much memory in size the key and value use.

Specified by:

calculateSize in interface EntrySizeCalculator<K,V>

Parameters:

key - The key for this entry to be used in size calculation

ice - The value for this entry to be used in size calculation

Returns:

The size approximately in memory the key and value use

calculateSize

public long calculateSize(K key,
                          V value,
                          Metadata metadata)

Description copied from interface: org.infinispan.container.impl.KeyValueMetadataSizeCalculator

Method used to calculate how much memory in size the key, value and metadata use.

Specified by:

calculateSize in interface org.infinispan.container.impl.KeyValueMetadataSizeCalculator<K,V>

Parameters:

key - The key for this entry to be used in size calculation

value - The value for this entry to be used in size calculation

metadata - The metadata for this entry to be used in size calculation

Returns:

The size approximately in memory the key, value and metadata use.