Uses of Package org.apache.hadoop.io (Apache Hadoop Common 3.5.0 API)
Description: use: package: org.apache.hadoop.io

# Uses of Package
org.apache.hadoop.io

Packages that use org.apache.hadoop.io
Package
Description
org.apache.hadoop.conf
Configuration of system parameters.
org.apache.hadoop.crypto
Crypto related classes.
org.apache.hadoop.crypto.key.kms
org.apache.hadoop.fs
An abstract file system API.
org.apache.hadoop.fs.impl
This package contains implementation classes for use inside filesystems.
org.apache.hadoop.fs.permission
This package provides support for HDFS permission and ACL.
org.apache.hadoop.fs.store
This package is for classes to be shared across object stores; for internal use within the hadoop-* modules only.
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.file.tfile
org.apache.hadoop.io.serializer
This package provides a mechanism for using different serialization frameworks in Hadoop.
org.apache.hadoop.ipc
Tools to help define network clients and servers.
org.apache.hadoop.ipc.internal
IPC internal classes not for any use by libraries outside the apache hadoop source tree.
org.apache.hadoop.net
Network-related classes.
org.apache.hadoop.security
Classes for hadoop security.
org.apache.hadoop.security.authorize
Support for service-level authorization.
org.apache.hadoop.security.token
Support for delegation tokens.
org.apache.hadoop.security.token.delegation
ZooKeeper secret manager for TokenIdentifiers and DelegationKeys.
org.apache.hadoop.security.token.delegation.web
org.apache.hadoop.util
Common utilities.
org.apache.hadoop.util.bloom

- Classes in org.apache.hadoop.io used by org.apache.hadoop.conf
  Class
  Description
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.crypto
  Class
  Description
  ByteBufferPool
- Classes in org.apache.hadoop.io used by org.apache.hadoop.crypto.key.kms
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.fs
  Class
  Description
  ByteBufferPool
  MD5Hash
  A Writable for MD5 hash values.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.fs.impl
  Class
  Description
  ByteBufferPool
- Classes in org.apache.hadoop.io used by org.apache.hadoop.fs.permission
  Class
  Description
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.fs.store
  Class
  Description
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.io
  Class
  Description
  AbstractMapWritable
  Abstract base class for MapWritable and SortedMapWritable Unlike org.apache.nutch.crawl.MapWritable, this class allows creation of MapWritable<Writable, MapWritable> so the CLASS_TO_ID and ID_TO_CLASS maps travel with the class instead of being static.
  BinaryComparable
  Interface supported by `WritableComparable` types supporting ordering/permutation by a representative set of bytes.
  BooleanWritable
  A WritableComparable for booleans.
  ByteBufferPool
  BytesWritable
  A byte sequence that is usable as a key or value.
  ByteWritable
  A WritableComparable for a single byte.
  DataOutputBuffer
  A reusable `DataOutput` implementation that writes to an in-memory buffer.
  DoubleWritable
  Writable for Double values.
  ElasticByteBufferPool
  This is a simple ByteBufferPool which just creates ByteBuffers as needed.
  ElasticByteBufferPool.Key
  FloatWritable
  A WritableComparable for floats.
  IntWritable
  A WritableComparable for ints.
  LongWritable
  A WritableComparable for longs.
  LongWritable.Comparator
  A Comparator optimized for LongWritable.
  MapFile
  A file-based map from keys to values.
  MapFile.Reader
  Provide access to an existing map.
  MapFile.Reader.Option
  MapFile.Writer
  Writes a new map.
  MapFile.Writer.Option
  MapWritable
  A Writable Map.
  MD5Hash
  A Writable for MD5 hash values.
  NullWritable
  Singleton Writable with no data.
  ObjectWritable
  A polymorphic Writable that writes an instance with it's class name.
  OutputBuffer
  A reusable `OutputStream` implementation that writes to an in-memory buffer.
  RawComparator
  A `Comparator` that operates directly on byte representations of objects.
  ReadaheadPool
  Manages a pool of threads which can issue readahead requests on file descriptors.
  ReadaheadPool.ReadaheadRequest
  An outstanding readahead request that has been submitted to the pool.
  SequenceFile.CompressionType
  The compression type used to compress key/value pairs in the `SequenceFile`.
  SequenceFile.Metadata
  The class encapsulating with the metadata of a file.
  SequenceFile.Reader
  Reads key/value pairs from a sequence-format file.
  SequenceFile.Reader.Option
  A tag interface for all of the Reader options
  SequenceFile.Sorter.RawKeyValueIterator
  The interface to iterate over raw keys/values of SequenceFiles.
  SequenceFile.Sorter.SegmentDescriptor
  This class defines a merge segment.
  SequenceFile.ValueBytes
  The interface to 'raw' values of SequenceFiles.
  SequenceFile.Writer
  Write key/value pairs to a sequence-format file.
  SequenceFile.Writer.Option
  ShortWritable
  A WritableComparable for shorts.
  SortedMapWritable
  A Writable SortedMap.
  Stringifier
  Stringifier interface offers two methods to convert an object to a string representation and restore the object given its string representation.
  Text
  This class stores text using standard UTF8 encoding.
  UTF8
  Deprecated.
  replaced by Text
  VIntWritable
  A WritableComparable for integer values stored in variable-length format.
  VLongWritable
  A WritableComparable for longs in a variable-length format.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
  WritableComparable
  A `Writable` which is also `Comparable`.
  WritableComparator
  A Comparator for `WritableComparable`s.
  WritableFactory
  A factory for a class of Writable.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.io.file.tfile
  Class
  Description
  BytesWritable
  A byte sequence that is usable as a key or value.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.io.serializer
  Class
  Description
  RawComparator
  A `Comparator` that operates directly on byte representations of objects.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.ipc
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.ipc.internal
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.net
  Class
  Description
  LongWritable
  A WritableComparable for longs.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.security
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.security.authorize
  Class
  Description
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.security.token
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.security.token.delegation
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.security.token.delegation.web
  Class
  Description
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.util
  Class
  Description
  IntWritable
  A WritableComparable for ints.
  Text
  This class stores text using standard UTF8 encoding.
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
- Classes in org.apache.hadoop.io used by org.apache.hadoop.util.bloom
  Class
  Description
  Writable
  A serializable object which implements a simple, efficient, serialization protocol, based on `DataInput` and `DataOutput`.
  WritableComparable
  A `Writable` which is also `Comparable`.