Class QuiescentBufferPool

java.lang.Object

org.xerial.snappy.pool.QuiescentBufferPool

All Implemented Interfaces:

BufferPool

public final class QuiescentBufferPool
extends Object
implements BufferPool

A BufferPool implementation which does no pooling. New instances will be created for each call to allocate.

Field Summary

Fields

Modifier and Type	Field	Description
private static final QuiescentBufferPool	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor	Description
private	QuiescentBufferPool()

Method Summary

Modifier and Type	Method	Description
byte[]	allocateArray(int size)	Creates a new byte[] of size.
ByteBuffer	allocateDirect(int size)	Allocates a direct ByteBuffer of size.
static BufferPool	getInstance()
void	releaseArray(byte[] buffer)	Does nothing.
void	releaseDirect(ByteBuffer buffer)	Aggressively releases native resources associated with buffer.

Methods inherited from class Object

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

Field Details

INSTANCE

private static final QuiescentBufferPool INSTANCE

Constructor Details

QuiescentBufferPool

private QuiescentBufferPool()

Method Details

getInstance

public static BufferPool getInstance()

Returns:

Instance of BufferPool which does no caching/reuse of instances.

allocateArray

public byte[] allocateArray(int size)

Creates a new byte[] of size.

Specified by:

allocateArray in interface BufferPool

Parameters:

size - The minimum size array required. Must be >= 0.

Returns:

A byte[] with length of at least size.

See Also:

• BufferPool.releaseArray(byte[])

releaseArray

public void releaseArray(byte[] buffer)

Does nothing.

Specified by:

releaseArray in interface BufferPool

Parameters:

buffer - Instance to return to pool. Must not be null. Must not be returned more than 1 time. Must not be used by caller after return.

allocateDirect

public ByteBuffer allocateDirect(int size)

Allocates a direct ByteBuffer of size.

Specified by:

allocateDirect in interface BufferPool

Parameters:

size - The minimum size buffer required. Must be >= 0.

Returns:

A ByteBuffer of size or greater capacity.

See Also:

• BufferPool.releaseDirect(ByteBuffer)
• ByteBuffer.allocateDirect(int)

releaseDirect

public void releaseDirect(ByteBuffer buffer)

Aggressively releases native resources associated with buffer.

Specified by:

releaseDirect in interface BufferPool

Parameters:

buffer - Instance to return to pool. Must not be null. Must not be returned more than 1 time. Must not be used by caller after return.