com.maverick.nio

Class ByteBufferPool

java.lang.Object

com.maverick.nio.ByteBufferPool

public class ByteBufferPool
extends Object

This class provides a pool for either direct or non direct ByteBuffers.

Author:

Lee David Painter

Constructor Summary

Constructors

Constructor and Description
ByteBufferPool() Create a default pool of ByteBuffers with 4k capacity
ByteBufferPool(int capacity, boolean direct) Create a pool of ByteBuffers.

Method Summary

Modifier and Type	Method and Description
void	add(ByteBuffer buffer) Add a buffer back to the pool.
ByteBuffer	get() Get a free buffer from the pool.
int	getAllocatedBuffers() Get the number of buffers currently allocated out.
int	getCapacity() Get the capacity of buffers in this pool.
int	getFreeBuffers() Get the number of buffers that are ready to be allocated.
long	getTotalMemoryAllocated() Calculate the total memory allocated by this pool.
long	getTotalMemoryInUse() Calculate the total memory in use by this pool.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteBufferPool

public ByteBufferPool()

Create a default pool of ByteBuffers with 4k capacity

ByteBufferPool

public ByteBufferPool(int capacity,
                      boolean direct)

Create a pool of ByteBuffers.

Parameters:

capacity - int

direct - boolean

Method Detail

getCapacity

public int getCapacity()

Get the capacity of buffers in this pool.

Returns:

int

getAllocatedBuffers

public int getAllocatedBuffers()

Get the number of buffers currently allocated out.

Returns:

int

getFreeBuffers

public int getFreeBuffers()

Get the number of buffers that are ready to be allocated.

Returns:

int

getTotalMemoryInUse

public long getTotalMemoryInUse()

Calculate the total memory in use by this pool.

Returns:

long

getTotalMemoryAllocated

public long getTotalMemoryAllocated()

Calculate the total memory allocated by this pool.

Returns:

long

get

public ByteBuffer get()

Get a free buffer from the pool.

Returns:

ByteBuffer

add

public void add(ByteBuffer buffer)

Add a buffer back to the pool.

Parameters:

buffer - ByteBuffer