org.apache.flink.runtime.io.compression

类 AirBlockCompressor

java.lang.Object

org.apache.flink.runtime.io.compression.AirBlockCompressor

所有已实现的接口:

BlockCompressor

public class AirBlockCompressor
extends Object
implements BlockCompressor

Flink compressor that wraps Compressor.

构造器概要

构造器

构造器和说明
AirBlockCompressor(io.airlift.compress.Compressor internalCompressor)

方法概要

限定符和类型	方法和说明
int	compress(byte[] src, int srcOff, int srcLen, byte[] dst, int dstOff) Compress data read from src, and write the compressed data to dst.
int	compress(ByteBuffer src, int srcOff, int srcLen, ByteBuffer dst, int dstOff) Compress source data read from (Buffer.position() + srcOff), and write the compressed data to dst.
int	getMaxCompressedSize(int srcSize) Get the max compressed size for a given original size.

从类继承的方法 java.lang.Object

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

构造器详细资料

AirBlockCompressor

public AirBlockCompressor(io.airlift.compress.Compressor internalCompressor)

方法详细资料

getMaxCompressedSize

public int getMaxCompressedSize(int srcSize)

从接口复制的说明: BlockCompressor

Get the max compressed size for a given original size.

指定者:

getMaxCompressedSize 在接口中 BlockCompressor

compress

public int compress(ByteBuffer src,
                    int srcOff,
                    int srcLen,
                    ByteBuffer dst,
                    int dstOff)
             throws BufferCompressionException

从接口复制的说明: BlockCompressor

Compress source data read from (Buffer.position() + srcOff), and write the compressed data to dst.

指定者:

compress 在接口中 BlockCompressor

参数:

src - Uncompressed data to read from

srcOff - The start offset of uncompressed data

srcLen - The length of data which want to be compressed

dst - The target to write compressed data

dstOff - The start offset to write the compressed data

返回:

Length of compressed data

抛出:

BufferCompressionException - if exception thrown when compressing

compress

public int compress(byte[] src,
                    int srcOff,
                    int srcLen,
                    byte[] dst,
                    int dstOff)
             throws BufferCompressionException

从接口复制的说明: BlockCompressor

Compress data read from src, and write the compressed data to dst.

指定者:

compress 在接口中 BlockCompressor

参数:

src - Uncompressed data to read from

srcOff - The start offset of uncompressed data

srcLen - The length of data which want to be compressed

dst - The target to write compressed data

dstOff - The start offset to write the compressed data

返回:

Length of compressed data

抛出:

BufferCompressionException - if exception thrown when compressing