rabbit.io
Class CachingBufferHandler

java.lang.Object
  rabbit.io.CachingBufferHandler

All Implemented Interfaces:

BufferHandler

public class CachingBufferHandler
extends java.lang.Object
implements BufferHandler

A ByteBuffer handler that keeps re uses returned buffers. This class uses no synchronization. This class only allocates direct buffers.

Author:

Robert Olofsson

Constructor Summary

CachingBufferHandler()

Method Summary

java.nio.ByteBuffer	getBuffer() Get a byte buffer of reasonable size, the buffer will have been cleared.
java.nio.ByteBuffer	growBuffer(java.nio.ByteBuffer buffer) Get a larger buffer with the same contents as buffer, this will also return buffer to the pool.
boolean	isLarge(java.nio.ByteBuffer buffer) Check if the given buffer is a large buffer
void	putBuffer(java.nio.ByteBuffer buffer) Return a buffer.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingBufferHandler

public CachingBufferHandler()

Method Detail

getBuffer

public java.nio.ByteBuffer getBuffer()

Description copied from interface: BufferHandler

Get a byte buffer of reasonable size, the buffer will have been cleared.

Specified by:

getBuffer in interface BufferHandler

Returns:

a ByteBuffer

putBuffer

public void putBuffer(java.nio.ByteBuffer buffer)

Description copied from interface: BufferHandler

Return a buffer.

Specified by:

putBuffer in interface BufferHandler

Parameters:

buffer - the ByteBuffer to return to the cache

growBuffer

public java.nio.ByteBuffer growBuffer(java.nio.ByteBuffer buffer)

Description copied from interface: BufferHandler

Get a larger buffer with the same contents as buffer, this will also return buffer to the pool.

Specified by:

growBuffer in interface BufferHandler

Parameters:

buffer - an existing buffer, the contents will be copied into the new larger buffer. May be null.

Returns:

the new larger buffer

isLarge

public boolean isLarge(java.nio.ByteBuffer buffer)

Description copied from interface: BufferHandler

Check if the given buffer is a large buffer

Specified by:

isLarge in interface BufferHandler

Parameters:

buffer - the ByteBuffer to check

Returns:

true if the given buffer is large