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com.tangosol.net.cache
Interface ConfigurableCacheMap.UnitCalculator

All Known Subinterfaces:

OldCache.UnitCalculator

All Known Implementing Classes:

BinaryMemoryCalculator, OldCache.InternalUnitCalculator, SimpleMapIndex.IndexCalculator, SimpleMemoryCalculator

Enclosing interface:

ConfigurableCacheMap

public static interface ConfigurableCacheMap.UnitCalculator

A unit calculator is an object that can calculate the cost of caching an object.

Method Summary

int	calculateUnits(java.lang.Object oKey, java.lang.Object oValue) Calculate a cache cost for the specified cache entry key and value.
java.lang.String	getName() Obtain the name of the unit calculator.

Method Detail

calculateUnits

int calculateUnits(java.lang.Object oKey,
                   java.lang.Object oValue)

Calculate a cache cost for the specified cache entry key and value.

Parameters:

oKey - the cache key to evaluate for unit cost

oValue - the cache value to evaluate for unit cost

Returns:

an integer value 0 or greater, with a larger value signifying a higher cost

Throws:

java.lang.IllegalArgumentException - if any of the specified object types cannot be processed by this calculator

getName

java.lang.String getName()

Obtain the name of the unit calculator. This is intended to be human readable for use in a monitoring tool; examples include "SimpleMemoryCalculator" and "BinaryMemoryCalculator".

Returns:

the name of the unit calculator

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