| パッケージ | 説明 | 
|---|---|
| org.apache.hadoop.fs | Implementations of  AbstractFileSystemfor hdfs
    over rpc and hdfs over web. | 
| org.apache.hadoop.fs.azure | 
A distributed implementation of  FileSystemfor reading and writing files on
Azure Block Storage. | 
| org.apache.hadoop.fs.ftp | |
| org.apache.hadoop.fs.s3native | 
A distributed implementation of  FileSystemfor reading and writing files on
Amazon S3. | 
| org.apache.hadoop.fs.viewfs | |
| org.apache.hadoop.hdfs.client | This package provides the administrative APIs for HDFS. | 
| org.apache.hadoop.io | Generic i/o code for use when reading and writing data to the network,
to databases, and to files. | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| FSDataOutputStream | FileSystem. append(Path f)Append to an existing file (optional operation). | 
| FSDataOutputStream | FileSystem. append(Path f,
      int bufferSize)Append to an existing file (optional operation). | 
| FSDataOutputStream | RawLocalFileSystem. append(Path f,
      int bufferSize,
      Progressable progress) | 
| FSDataOutputStream | FilterFileSystem. append(Path f,
      int bufferSize,
      Progressable progress) | 
| FSDataOutputStream | ChecksumFileSystem. append(Path f,
      int bufferSize,
      Progressable progress) | 
| abstract FSDataOutputStream | FileSystem. append(Path f,
      int bufferSize,
      Progressable progress)Append to an existing file (optional operation). | 
| static FSDataOutputStream | FileSystem. create(FileSystem fs,
      Path file,
      FsPermission permission)create a file with the provided permission
 The permission of the file is set to be the provided permission as in
 setPermission, not permission&~umask
 
 It is implemented using two RPCs. | 
| FSDataOutputStream | FileSystem. create(Path f)Create an FSDataOutputStream at the indicated Path. | 
| FSDataOutputStream | FileSystem. create(Path f,
      boolean overwrite)Create an FSDataOutputStream at the indicated Path. | 
| FSDataOutputStream | FileSystem. create(Path f,
      boolean overwrite,
      int bufferSize)Create an FSDataOutputStream at the indicated Path. | 
| FSDataOutputStream | FileSystem. create(Path f,
      boolean overwrite,
      int bufferSize,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | FileSystem. create(Path f,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize)Create an FSDataOutputStream at the indicated Path. | 
| FSDataOutputStream | RawLocalFileSystem. create(Path f,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| FSDataOutputStream | FileSystem. create(Path f,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | FileContext. create(Path f,
      EnumSet<CreateFlag> createFlag,
      org.apache.hadoop.fs.Options.CreateOpts... opts)Create or overwrite file on indicated path and returns an output stream for
 writing into the file. | 
| FSDataOutputStream | AbstractFileSystem. create(Path f,
      EnumSet<CreateFlag> createFlag,
      org.apache.hadoop.fs.Options.CreateOpts... opts)The specification of this method matches that of
  FileContext.create(Path, EnumSet, Options.CreateOpts...)except
 that the Path f must be fully qualified and the permission is absolute
 (i.e. umask has been applied). | 
| FSDataOutputStream | RawLocalFileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| FSDataOutputStream | FilterFileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| FSDataOutputStream | ChecksumFileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| abstract FSDataOutputStream | FileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | FileSystem. create(Path f,
      FsPermission permission,
      EnumSet<CreateFlag> flags,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | FilterFileSystem. create(Path f,
      FsPermission permission,
      EnumSet<CreateFlag> flags,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress,
      org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt) | 
| FSDataOutputStream | FileSystem. create(Path f,
      FsPermission permission,
      EnumSet<CreateFlag> flags,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress,
      org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt)Create an FSDataOutputStream at the indicated Path with a custom
 checksum option | 
| FSDataOutputStream | FileSystem. create(Path f,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | FileSystem. create(Path f,
      short replication)Create an FSDataOutputStream at the indicated Path. | 
| FSDataOutputStream | FileSystem. create(Path f,
      short replication,
      Progressable progress)Create an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| abstract FSDataOutputStream | AbstractFileSystem. createInternal(Path f,
              EnumSet<CreateFlag> flag,
              FsPermission absolutePermission,
              int bufferSize,
              short replication,
              long blockSize,
              Progressable progress,
              org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt,
              boolean createParent)The specification of this method matches that of
  AbstractFileSystem.create(Path, EnumSet, Options.CreateOpts...)except that the opts
 have been declared explicitly. | 
| FSDataOutputStream | FileSystem. createNonRecursive(Path f,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress)Opens an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | RawLocalFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | ChecksumFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | FileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress)Opens an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| FSDataOutputStream | RawLocalFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  EnumSet<CreateFlag> flags,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | FilterFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  EnumSet<CreateFlag> flags,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | FileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  EnumSet<CreateFlag> flags,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress)Opens an FSDataOutputStream at the indicated Path with write-progress
 reporting. | 
| protected FSDataOutputStream | FilterFileSystem. primitiveCreate(Path f,
               FsPermission absolutePermission,
               EnumSet<CreateFlag> flag,
               int bufferSize,
               short replication,
               long blockSize,
               Progressable progress,
               org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt) | 
| protected FSDataOutputStream | FileSystem. primitiveCreate(Path f,
               FsPermission absolutePermission,
               EnumSet<CreateFlag> flag,
               int bufferSize,
               short replication,
               long blockSize,
               Progressable progress,
               org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt)非推奨です。  | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| FSDataOutputStream | NativeAzureFileSystem. append(Path f,
      int bufferSize,
      Progressable progress)This optional operation is not yet supported. | 
| FSDataOutputStream | NativeAzureFileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| FSDataOutputStream | NativeAzureFileSystem. createNonRecursive(Path f,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | NativeAzureFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  boolean overwrite,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| FSDataOutputStream | NativeAzureFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  EnumSet<CreateFlag> flags,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| FSDataOutputStream | FTPFileSystem. append(Path f,
      int bufferSize,
      Progressable progress)This optional operation is not yet supported. | 
| FSDataOutputStream | FTPFileSystem. create(Path file,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress)A stream obtained via this call must be closed before using other APIs of
 this class or else the invocation will block. | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| FSDataOutputStream | NativeS3FileSystem. append(Path f,
      int bufferSize,
      Progressable progress)This optional operation is not yet supported. | 
| FSDataOutputStream | NativeS3FileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| FSDataOutputStream | ViewFileSystem. append(Path f,
      int bufferSize,
      Progressable progress) | 
| FSDataOutputStream | ViewFileSystem. create(Path f,
      FsPermission permission,
      boolean overwrite,
      int bufferSize,
      short replication,
      long blockSize,
      Progressable progress) | 
| FSDataOutputStream | ViewFs. createInternal(Path f,
              EnumSet<CreateFlag> flag,
              FsPermission absolutePermission,
              int bufferSize,
              short replication,
              long blockSize,
              Progressable progress,
              org.apache.hadoop.fs.Options.ChecksumOpt checksumOpt,
              boolean createParent) | 
| FSDataOutputStream | ViewFileSystem. createNonRecursive(Path f,
                  FsPermission permission,
                  EnumSet<CreateFlag> flags,
                  int bufferSize,
                  short replication,
                  long blockSize,
                  Progressable progress) | 
| 修飾子とタイプ | クラスと説明 | 
|---|---|
| class  | HdfsDataOutputStreamThe Hdfs implementation of  FSDataOutputStream. | 
| 修飾子とタイプ | メソッドと説明 | 
|---|---|
| static org.apache.hadoop.io.SequenceFile.Writer | SequenceFile. createWriter(Configuration conf,
            FSDataOutputStream out,
            Class keyClass,
            Class valClass,
            org.apache.hadoop.io.SequenceFile.CompressionType compressionType,
            CompressionCodec codec)非推奨です。 
 | 
| static org.apache.hadoop.io.SequenceFile.Writer | SequenceFile. createWriter(Configuration conf,
            FSDataOutputStream out,
            Class keyClass,
            Class valClass,
            org.apache.hadoop.io.SequenceFile.CompressionType compressionType,
            CompressionCodec codec,
            org.apache.hadoop.io.SequenceFile.Metadata metadata)非推奨です。 
 | 
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