org.apache.hadoop.io.compress

类 CodecPool

java.lang.Object

org.apache.hadoop.io.compress.CodecPool

public class CodecPool
extends Object

A global compressor/decompressor pool used to save and reuse (possibly native) compression/decompression codecs.

构造器概要

构造器

构造器和说明
CodecPool()

方法概要

方法

限定符和类型	方法和说明
static Compressor	getCompressor(CompressionCodec codec)
static Compressor	getCompressor(CompressionCodec codec, Configuration conf) Get a Compressor for the given CompressionCodec from the pool or a new one.
static Decompressor	getDecompressor(CompressionCodec codec) Get a Decompressor for the given CompressionCodec from the pool or a new one.
static void	returnCompressor(Compressor compressor) Return the Compressor to the pool.
static void	returnDecompressor(Decompressor decompressor) Return the Decompressor to the pool.

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

CodecPool

public CodecPool()

方法详细资料

getCompressor

public static Compressor getCompressor(CompressionCodec codec,
                       Configuration conf)

Get a Compressor for the given CompressionCodec from the pool or a new one.

参数:

codec - the CompressionCodec for which to get the Compressor

conf - the Configuration object which contains confs for creating or reinit the compressor

返回:

Compressor for the given CompressionCodec from the pool or a new one

getCompressor

public static Compressor getCompressor(CompressionCodec codec)

getDecompressor

public static Decompressor getDecompressor(CompressionCodec codec)

Get a Decompressor for the given CompressionCodec from the pool or a new one.

参数:

codec - the CompressionCodec for which to get the Decompressor

返回:

Decompressor for the given CompressionCodec the pool or a new one

returnCompressor

public static void returnCompressor(Compressor compressor)

Return the Compressor to the pool.

参数:

compressor - the Compressor to be returned to the pool

returnDecompressor

public static void returnDecompressor(Decompressor decompressor)

Return the Decompressor to the pool.

参数:

decompressor - the Decompressor to be returned to the pool