org.apache.hadoop.io.compress

クラス DefaultCodec

java.lang.Object

org.apache.hadoop.io.compress.DefaultCodec

すべての実装されたインタフェース:

Configurable, CompressionCodec, DirectDecompressionCodec

直系の既知のサブクラス:

GzipCodec

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class DefaultCodec
extends Object
implements Configurable, CompressionCodec, DirectDecompressionCodec

コンストラクタのサマリー

コンストラクタ

コンストラクタと説明
DefaultCodec()

メソッドのサマリー

修飾子とタイプ	メソッドと説明
Compressor	createCompressor() Create a new Compressor for use by this CompressionCodec.
Decompressor	createDecompressor() Create a new Decompressor for use by this CompressionCodec.
DirectDecompressor	createDirectDecompressor() Create a new DirectDecompressor for use by this DirectDecompressionCodec.
CompressionInputStream	createInputStream(InputStream in) Create a CompressionInputStream that will read from the given input stream.
CompressionInputStream	createInputStream(InputStream in, Decompressor decompressor) Create a CompressionInputStream that will read from the given InputStream with the given Decompressor.
CompressionOutputStream	createOutputStream(OutputStream out) Create a CompressionOutputStream that will write to the given OutputStream.
CompressionOutputStream	createOutputStream(OutputStream out, Compressor compressor) Create a CompressionOutputStream that will write to the given OutputStream with the given Compressor.
Class<? extends Compressor>	getCompressorType() Get the type of Compressor needed by this CompressionCodec.
Configuration	getConf() Return the configuration used by this object.
Class<? extends Decompressor>	getDecompressorType() Get the type of Decompressor needed by this CompressionCodec.
String	getDefaultExtension() Get the default filename extension for this kind of compression.
void	setConf(Configuration conf) Set the configuration to be used by this object.

クラスから継承されたメソッド java.lang.Object

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

コンストラクタの詳細

DefaultCodec

public DefaultCodec()

メソッドの詳細

setConf

public void setConf(Configuration conf)

インタフェースからコピーされた説明: Configurable

Set the configuration to be used by this object.

定義:

setConf インタフェース内 Configurable

getConf

public Configuration getConf()

インタフェースからコピーされた説明: Configurable

Return the configuration used by this object.

定義:

getConf インタフェース内 Configurable

createOutputStream

public CompressionOutputStream createOutputStream(OutputStream out)
                                           throws IOException

インタフェースからコピーされた説明: CompressionCodec

Create a CompressionOutputStream that will write to the given OutputStream.

定義:

createOutputStream インタフェース内 CompressionCodec

パラメータ:

out - the location for the final output stream

戻り値:

a stream the user can write uncompressed data to have it compressed

例外:

IOException

createOutputStream

public CompressionOutputStream createOutputStream(OutputStream out,
                                                  Compressor compressor)
                                           throws IOException

インタフェースからコピーされた説明: CompressionCodec

Create a CompressionOutputStream that will write to the given OutputStream with the given Compressor.

定義:

createOutputStream インタフェース内 CompressionCodec

パラメータ:

out - the location for the final output stream

compressor - compressor to use

戻り値:

a stream the user can write uncompressed data to have it compressed

例外:

IOException

getCompressorType

public Class<? extends Compressor> getCompressorType()

インタフェースからコピーされた説明: CompressionCodec

Get the type of Compressor needed by this CompressionCodec.

定義:

getCompressorType インタフェース内 CompressionCodec

戻り値:

the type of compressor needed by this codec.

createCompressor

public Compressor createCompressor()

インタフェースからコピーされた説明: CompressionCodec

Create a new Compressor for use by this CompressionCodec.

定義:

createCompressor インタフェース内 CompressionCodec

戻り値:

a new compressor for use by this codec

createInputStream

public CompressionInputStream createInputStream(InputStream in)
                                         throws IOException

インタフェースからコピーされた説明: CompressionCodec

Create a CompressionInputStream that will read from the given input stream.

定義:

createInputStream インタフェース内 CompressionCodec

パラメータ:

in - the stream to read compressed bytes from

戻り値:

a stream to read uncompressed bytes from

例外:

IOException

createInputStream

public CompressionInputStream createInputStream(InputStream in,
                                                Decompressor decompressor)
                                         throws IOException

インタフェースからコピーされた説明: CompressionCodec

Create a CompressionInputStream that will read from the given InputStream with the given Decompressor.

定義:

createInputStream インタフェース内 CompressionCodec

パラメータ:

in - the stream to read compressed bytes from

decompressor - decompressor to use

戻り値:

a stream to read uncompressed bytes from

例外:

IOException

getDecompressorType

public Class<? extends Decompressor> getDecompressorType()

インタフェースからコピーされた説明: CompressionCodec

Get the type of Decompressor needed by this CompressionCodec.

定義:

getDecompressorType インタフェース内 CompressionCodec

戻り値:

the type of decompressor needed by this codec.

createDecompressor

public Decompressor createDecompressor()

インタフェースからコピーされた説明: CompressionCodec

Create a new Decompressor for use by this CompressionCodec.

定義:

createDecompressor インタフェース内 CompressionCodec

戻り値:

a new decompressor for use by this codec

createDirectDecompressor

public DirectDecompressor createDirectDecompressor()

Create a new DirectDecompressor for use by this DirectDecompressionCodec.

定義:

createDirectDecompressor インタフェース内 DirectDecompressionCodec

戻り値:

a new direct decompressor for use by this codec

getDefaultExtension

public String getDefaultExtension()

インタフェースからコピーされた説明: CompressionCodec

Get the default filename extension for this kind of compression.

定義:

getDefaultExtension インタフェース内 CompressionCodec

戻り値:

the extension including the '.'