net.sf.ehcache.pool.sizeof
Class ReflectionSizeOf

java.lang.Object
  net.sf.ehcache.pool.sizeof.SizeOf
      net.sf.ehcache.pool.sizeof.ReflectionSizeOf

public class ReflectionSizeOf
extends SizeOf

SizeOf that uses reflection to measure on heap size of object graphs

Author:

Alex Snaps, Chris Dennis

Constructor Summary

ReflectionSizeOf()
Builds a new SizeOf that will not filter fields and will cache reflected fields

ReflectionSizeOf(SizeOfFilter fieldFilter)
Builds a new SizeOf that will filter fields and will cache reflected fields

ReflectionSizeOf(SizeOfFilter fieldFilter, boolean caching)
Builds a new SizeOf that will filter fields

Method Summary

long	sizeOf(Object obj) Calculates the size in memory (heap) of the instance passed in, not navigating the down graph

Methods inherited from class net.sf.ehcache.pool.sizeof.SizeOf

deepSizeOf

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionSizeOf

public ReflectionSizeOf()

Builds a new SizeOf that will not filter fields and will cache reflected fields

See Also:

ReflectionSizeOf(net.sf.ehcache.pool.sizeof.filter.SizeOfFilter, boolean)

ReflectionSizeOf

public ReflectionSizeOf(SizeOfFilter fieldFilter)

Builds a new SizeOf that will filter fields and will cache reflected fields

Parameters:

fieldFilter - The filter to apply

See Also:

ReflectionSizeOf(net.sf.ehcache.pool.sizeof.filter.SizeOfFilter, boolean), SizeOfFilter

ReflectionSizeOf

public ReflectionSizeOf(SizeOfFilter fieldFilter,
                        boolean caching)

Builds a new SizeOf that will filter fields

Parameters:

fieldFilter - The filter to apply

caching - Whether to cache reflected fields

See Also:

SizeOfFilter

Method Detail

sizeOf

public long sizeOf(Object obj)

Calculates the size in memory (heap) of the instance passed in, not navigating the down graph

Specified by:

sizeOf in class SizeOf

Parameters:

obj - the object to measure the size of

Returns:

the object size in memory in bytes