| Package | Description |
|---|---|
| org.apache.hadoop.conf |
Configuration of system parameters.
|
| org.apache.hadoop.fs |
An abstract file system API.
|
| org.apache.hadoop.fs.crypto | |
| org.apache.hadoop.fs.ftp | |
| org.apache.hadoop.fs.http |
Filesystem implementations that allow Hadoop to read directly from
HTTP / HTTPS endpoints.
|
| org.apache.hadoop.fs.sftp |
SFTP FileSystem package.
|
| org.apache.hadoop.fs.shell.find | |
| org.apache.hadoop.fs.viewfs | |
| org.apache.hadoop.io |
Generic i/o code for use when reading and writing data to the network,
to databases, and to files.
|
| org.apache.hadoop.io.compress | |
| org.apache.hadoop.io.file.tfile | |
| org.apache.hadoop.metrics2.sink |
Builtin metrics sinks
|
| org.apache.hadoop.security | |
| org.apache.hadoop.util |
Common utilities.
|
| Class and Description |
|---|
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| AbstractFileSystem
This class provides an interface for implementors of a Hadoop file system
(analogous to the VFS of Unix).
|
| BatchedRemoteIterator.BatchedEntries |
| BlockLocation
Represents the network location of a block, information about the hosts
that contain block replicas, and other block metadata (E.g.
|
| BlockStoragePolicySpi
A storage policy specifies the placement of block replicas on specific
storage types.
|
| ByteBufferReadable
Implementers of this interface provide a read API that writes to a
ByteBuffer, not a byte[].
|
| CanSetDropBehind |
| CanSetReadahead |
| CanUnbuffer
FSDataInputStreams implement this interface to indicate that they can clear
their buffers on request.
|
| ChecksumFileSystem
Abstract Checksumed FileSystem.
|
| ContentSummary
Store the summary of a content (a directory or a file).
|
| ContentSummary.Builder
We don't use generics.
|
| CreateFlag
CreateFlag specifies the file create semantic.
|
| DelegationTokenRenewer.Renewable
The renewable interface used by the renewer.
|
| FileAlreadyExistsException
Used when target file already exists for any operation and
is not configured to be overwritten.
|
| FileChecksum
An abstract class representing file checksums for files.
|
| FileContext
The FileContext class provides an interface to the application writer for
using the Hadoop file system.
|
| FileContext.Util
Utility/library methods built over the basic FileContext methods.
|
| FileStatus
Interface that represents the client side information for a file.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| FileSystem.Statistics
Tracks statistics about how many reads, writes, and so forth have been
done in a FileSystem.
|
| FileSystem.Statistics.StatisticsData
Statistics data.
|
| FilterFileSystem
A
FilterFileSystem contains
some other file system, which it uses as
its basic file system, possibly transforming
the data along the way or providing additional
functionality. |
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| FSDataOutputStreamBuilder
Builder for
FSDataOutputStream and its subclasses. |
| FsServerDefaults
Provides server default configuration values to clients.
|
| FsShellPermissions.Chown
Used to change owner and/or group of files
|
| FsStatus
This class is used to represent the capacity, free and used space on a
FileSystem. |
| GetSpaceUsed |
| GetSpaceUsed.Builder
The builder class
|
| GlobalStorageStatistics
Stores global storage statistics objects.
|
| GlobalStorageStatistics.StorageStatisticsProvider
A callback API for creating new StorageStatistics instances.
|
| HardLink
Class for creating hardlinks.
|
| HardLink.LinkStats
HardLink statistics counters and methods.
|
| LocalFileSystem
Implement the FileSystem API for the checksumed local filesystem.
|
| LocatedFileStatus
This class defines a FileStatus that includes a file's block locations.
|
| Options.ChecksumOpt
This is used in FileSystem and FileContext to specify checksum options.
|
| Options.CreateOpts
Class to support the varargs for create() options.
|
| Options.CreateOpts.BlockSize |
| Options.CreateOpts.BufferSize |
| Options.CreateOpts.BytesPerChecksum
This is not needed if ChecksumParam is specified.
|
| Options.CreateOpts.ChecksumParam |
| Options.CreateOpts.CreateParent |
| Options.CreateOpts.Perms |
| Options.CreateOpts.ReplicationFactor |
| Options.Rename
Enum to support the varargs for rename() options
|
| ParentNotDirectoryException
Indicates that the parent of specified Path is not a directory
as expected.
|
| Path
Names a file or directory in a
FileSystem. |
| PathExistsException
Exception corresponding to File Exists - EEXISTS
|
| PathFilter |
| PathIOException
Exceptions based on standard posix/linux style exceptions for path related
errors.
|
| PositionedReadable
Stream that permits positional reading.
|
| QuotaUsage
Store the quota usage of a directory.
|
| QuotaUsage.Builder
Builder class for QuotaUsage.
|
| ReadOption
Options that can be used when reading from a FileSystem.
|
| RemoteIterator
An iterator over a collection whose elements need to be fetched remotely
|
| Seekable
Stream that permits seeking.
|
| StorageStatistics
StorageStatistics contains statistics data for a FileSystem or FileContext
instance.
|
| StorageStatistics.LongStatistic
A 64-bit storage statistic.
|
| StorageType
Defines the types of supported storage media.
|
| StreamCapabilities
Interface to query streams for supported capabilities.
|
| StreamCapabilities.StreamCapability
Deprecated.
|
| Syncable
This interface for flush/sync operation.
|
| TrashPolicy
This interface is used for implementing different Trash policies.
|
| UnsupportedFileSystemException
File system for a given file system name/scheme is not supported
|
| XAttrCodec
The value of
XAttr is byte[], this class is to
covert byte[] to some kind of string representation or convert back. |
| XAttrSetFlag |
| Class and Description |
|---|
| ByteBufferReadable
Implementers of this interface provide a read API that writes to a
ByteBuffer, not a byte[].
|
| CanSetDropBehind |
| CanSetReadahead |
| CanUnbuffer
FSDataInputStreams implement this interface to indicate that they can clear
their buffers on request.
|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| PositionedReadable
Stream that permits positional reading.
|
| Seekable
Stream that permits seeking.
|
| StreamCapabilities
Interface to query streams for supported capabilities.
|
| Syncable
This interface for flush/sync operation.
|
| Class and Description |
|---|
| FileStatus
Interface that represents the client side information for a file.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| Class and Description |
|---|
| FileStatus
Interface that represents the client side information for a file.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| FileStatus
Interface that represents the client side information for a file.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| AbstractFileSystem
This class provides an interface for implementors of a Hadoop file system
(analogous to the VFS of Unix).
|
| BlockLocation
Represents the network location of a block, information about the hosts
that contain block replicas, and other block metadata (E.g.
|
| BlockStoragePolicySpi
A storage policy specifies the placement of block replicas on specific
storage types.
|
| ContentSummary
Store the summary of a content (a directory or a file).
|
| CreateFlag
CreateFlag specifies the file create semantic.
|
| FileAlreadyExistsException
Used when target file already exists for any operation and
is not configured to be overwritten.
|
| FileChecksum
An abstract class representing file checksums for files.
|
| FileStatus
Interface that represents the client side information for a file.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| FsServerDefaults
Provides server default configuration values to clients.
|
| FsStatus
This class is used to represent the capacity, free and used space on a
FileSystem. |
| LocatedFileStatus
This class defines a FileStatus that includes a file's block locations.
|
| Options.ChecksumOpt
This is used in FileSystem and FileContext to specify checksum options.
|
| ParentNotDirectoryException
Indicates that the parent of specified Path is not a directory
as expected.
|
| Path
Names a file or directory in a
FileSystem. |
| PathFilter |
| QuotaUsage
Store the quota usage of a directory.
|
| RemoteIterator
An iterator over a collection whose elements need to be fetched remotely
|
| UnsupportedFileSystemException
File system for a given file system name/scheme is not supported
|
| XAttrSetFlag |
| Class and Description |
|---|
| CreateFlag
CreateFlag specifies the file create semantic.
|
| FileContext
The FileContext class provides an interface to the application writer for
using the Hadoop file system.
|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| Options.CreateOpts
Class to support the varargs for create() options.
|
| Path
Names a file or directory in a
FileSystem. |
| Syncable
This interface for flush/sync operation.
|
| Class and Description |
|---|
| Path
Names a file or directory in a
FileSystem. |
| Seekable
Stream that permits seeking.
|
| Class and Description |
|---|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| Class and Description |
|---|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| FileSystem
An abstract base class for a fairly generic filesystem.
|
| Path
Names a file or directory in a
FileSystem. |
| Class and Description |
|---|
| FSDataInputStream
Utility that wraps a
FSInputStream in a DataInputStream
and buffers input through a BufferedInputStream. |
| FSDataOutputStream
Utility that wraps a
OutputStream in a DataOutputStream. |
| Path
Names a file or directory in a
FileSystem. |
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