net.lecousin.framework.io.buffering

Class BufferedIO.MemoryManagement

java.lang.Object

net.lecousin.framework.io.buffering.BufferedIO.MemoryManagement

All Implemented Interfaces:

IMemoryManageable

Enclosing class:

BufferedIO

public static class BufferedIO.MemoryManagement
extends Object
implements IMemoryManageable

Manages memory usage and delayed write operations of BufferedIO instances.

Nested Class Summary

Nested classes/interfaces inherited from interface net.lecousin.framework.memory.IMemoryManageable

IMemoryManageable.FreeMemoryLevel

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_MAX_MEMORY By default set to 96 MB.
static int	DEFAULT_MEMORY_THRESHOLD By default set to 72 MB.
static int	DEFAULT_TO_BE_WRITTEN_THRESHOLD By default set to 12 MB.

Method Summary

Modifier and Type	Method and Description
void	freeMemory(IMemoryManageable.FreeMemoryLevel level) Request to free some memory.
String	getDescription() Desciption.
List<String>	getItemsDescription() Describe each item that can be freed.
static long	getMaxMemory()
static long	getMemoryThreshold()
static long	getToBeWrittenThreshold()
static void	setMemoryLimits(long memoryThreshold, long maxMemory, long toBeWrittenThreshold) Set the memory limits.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MEMORY_THRESHOLD

public static final int DEFAULT_MEMORY_THRESHOLD

By default set to 72 MB.

See Also:

Constant Field Values

DEFAULT_MAX_MEMORY

public static final int DEFAULT_MAX_MEMORY

By default set to 96 MB.

See Also:

Constant Field Values

DEFAULT_TO_BE_WRITTEN_THRESHOLD

public static final int DEFAULT_TO_BE_WRITTEN_THRESHOLD

By default set to 12 MB.

See Also:

Constant Field Values

Method Detail

getMemoryThreshold

public static long getMemoryThreshold()

getMaxMemory

public static long getMaxMemory()

getToBeWrittenThreshold

public static long getToBeWrittenThreshold()

setMemoryLimits

public static void setMemoryLimits(long memoryThreshold,
                                   long maxMemory,
                                   long toBeWrittenThreshold)

Set the memory limits.

Parameters:

memoryThreshold - when this threshold is reached, it accelerates freeing some memory

maxMemory - maximum memory to use

toBeWrittenThreshold - when this threshold is reached, pending writes are executed

getDescription

public String getDescription()

Description copied from interface: IMemoryManageable

Desciption.

Specified by:

getDescription in interface IMemoryManageable

getItemsDescription

public List<String> getItemsDescription()

Description copied from interface: IMemoryManageable

Describe each item that can be freed.

Specified by:

getItemsDescription in interface IMemoryManageable

freeMemory

public void freeMemory(IMemoryManageable.FreeMemoryLevel level)

Description copied from interface: IMemoryManageable

Request to free some memory.

Specified by:

freeMemory in interface IMemoryManageable