com.aspc.remote.memory.internal

Class MemoryUtil

java.lang.Object

com.aspc.remote.memory.internal.MemoryUtil

public final class MemoryUtil
extends java.lang.Object

MemoryUtil
THREAD MODE: SINGLETON MULTI-THREADED memory management

Since:

12 May 2002

Author:

Nigel Leck

Method Summary

Modifier and Type	Method and Description
static long	estMemoryUsed(java.lang.Object obj) How much space is used by this object ?
static int	instanceSize(java.lang.Class c) How much space is used ?
static long	parseSize(java.lang.String text)
static int	sizeof(boolean b) How much space is used ?
static int	sizeof(byte b) How much space is used ?
static int	sizeof(char c) How much space is used ?
static int	sizeof(double d) How much space is used ?
static int	sizeof(float f) How much space is used ?
static int	sizeof(int i) How much space is used ?
static int	sizeof(long l) How much space is used ?
static long	sizeOf(java.lang.Object obj) How much space is used ?
static int	sizeof(short s) How much space is used ?
static int	sizeOfPointer() The size of a pointer

Methods inherited from class java.lang.Object

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

Method Detail

parseSize

@CheckReturnValue
 @Nonnegative
public static long parseSize(@Nonnull
                                                             java.lang.String text)

Parameters:

text - the text to parse

Returns:

the size

estMemoryUsed

@CheckReturnValue
 @Nonnegative
public static long estMemoryUsed(java.lang.Object obj)

How much space is used by this object ?

Parameters:

obj - the object

Returns:

The number of bytes

sizeOfPointer

@CheckReturnValue
 @Nonnegative
public static int sizeOfPointer()

The size of a pointer

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(boolean b)

How much space is used ?

Parameters:

b - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(byte b)

How much space is used ?

Parameters:

b - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(char c)

How much space is used ?

Parameters:

c - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(short s)

How much space is used ?

Parameters:

s - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(int i)

How much space is used ?

Parameters:

i - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(long l)

How much space is used ?

Parameters:

l - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(float f)

How much space is used ?

Parameters:

f - the element

Returns:

the size in bytes

sizeof

@CheckReturnValue
 @Nonnegative
public static int sizeof(double d)

How much space is used ?

Parameters:

d - the element

Returns:

the size in bytes

instanceSize

@CheckReturnValue
 @Nonnegative
public static int instanceSize(java.lang.Class c)

How much space is used ?

Parameters:

c - the element

Returns:

the size in bytes

sizeOf

@CheckReturnValue
 @Nonnegative
public static long sizeOf(java.lang.Object obj)

How much space is used ?

Parameters:

obj - the element

Returns:

the size in bytes