org.teiid.common.buffer.impl

Class BlockByteBuffer

java.lang.Object

org.teiid.common.buffer.impl.BlockByteBuffer

public class BlockByteBuffer
extends Object

Provides buffer slices or blocks off of a central set of buffers.

Constructor Summary

Constructors

Constructor and Description
BlockByteBuffer(int segmentAddressBits, int blockCount, int blockAddressBits, boolean direct) Creates a new BlockByteBuffer where each buffer segment will be 1 << segmentAddressBits (max of 30), and a total size of (1 << blockAddressBits)*blockCount.

Method Summary

Modifier and Type	Method and Description
static ByteBuffer	allocate(int size, boolean direct)
BlockByteBuffer	duplicate()
ByteBuffer[]	getBuffers()
ByteBuffer	getByteBuffer(int block) Return a buffer positioned at the given start byte.

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockByteBuffer

public BlockByteBuffer(int segmentAddressBits,
                       int blockCount,
                       int blockAddressBits,
                       boolean direct)

Creates a new BlockByteBuffer where each buffer segment will be 1 << segmentAddressBits (max of 30), and a total size of (1 << blockAddressBits)*blockCount.

Parameters:

segmentAddressBits -

blockCount -

blockAddressBits -

direct -

Method Detail

getBuffers

public ByteBuffer[] getBuffers()

allocate

public static ByteBuffer allocate(int size,
                                  boolean direct)

duplicate

public BlockByteBuffer duplicate()

getByteBuffer

public ByteBuffer getByteBuffer(int block)

Return a buffer positioned at the given start byte. It is assumed that the caller will handle blocks in a thread safe manner.

Parameters:

startIndex -

Returns: