Uses of Package
org.apache.hadoop.io

Packages that use org.apache.hadoop.io

org.apache.hadoop.conf	Configuration of system parameters.
org.apache.hadoop.fs	An abstract file system API.
org.apache.hadoop.fs.permission
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.serializer	This package provides a mechanism for using different serialization frameworks in Hadoop.
org.apache.hadoop.mapred
org.apache.hadoop.mapred.join
org.apache.hadoop.mapred.lib
org.apache.hadoop.mapred.lib.aggregate
org.apache.hadoop.mapred.lib.db
org.apache.hadoop.mapreduce
org.apache.hadoop.mapreduce.counters	This package contains the implementations of different types of map-reduce counters.
org.apache.hadoop.mapreduce.lib.aggregate
org.apache.hadoop.mapreduce.lib.db
org.apache.hadoop.mapreduce.lib.fieldsel
org.apache.hadoop.mapreduce.lib.input
org.apache.hadoop.mapreduce.lib.join
org.apache.hadoop.mapreduce.lib.map
org.apache.hadoop.mapreduce.lib.partition
org.apache.hadoop.mapreduce.lib.reduce
org.apache.hadoop.mapreduce.security
org.apache.hadoop.record	(DEPRECATED) Hadoop record I/O contains classes and a record description language translator for simplifying serialization and deserialization of records in a language-neutral manner.
org.apache.hadoop.record.meta
org.apache.hadoop.security.token
org.apache.hadoop.security.token.delegation
org.apache.hadoop.util	Common utilities.
org.apache.hadoop.util.bloom
org.apache.hadoop.yarn.client
org.apache.hadoop.yarn.client.api
org.apache.hadoop.yarn.conf
org.apache.hadoop.yarn.logaggregation
org.apache.hadoop.yarn.security
org.apache.hadoop.yarn.security.client

Classes in org.apache.hadoop.io used by org.apache.hadoop.conf

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

ByteBufferPool

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.permission

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

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.

DoubleWritable
Writable for Double values.

FloatWritable
A WritableComparable for floats.

IntWritable
A WritableComparable for ints.

LongWritable
A WritableComparable for longs.

MapFile
A file-based map from keys to values.

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.

RawComparator
A Comparator that operates directly on byte representations of objects.

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.

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 WritableComparables.

WritableFactory
A factory for a class of Writable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.io.serializer

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.mapred

BytesWritable
A byte sequence that is usable as a key or value.

Closeable
Deprecated. use java.io.Closeable

LongWritable
A WritableComparable for longs.

RawComparator
A Comparator that operates directly on byte representations of objects.

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.

WritableComparable
A Writable which is also Comparable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred.join

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 WritableComparables.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred.lib

Closeable
Deprecated. use java.io.Closeable

LongWritable
A WritableComparable for longs.

Text
This class stores text using standard UTF8 encoding.

WritableComparable
A Writable which is also Comparable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred.lib.aggregate

Closeable
Deprecated. use java.io.Closeable

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.

WritableComparable
A Writable which is also Comparable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred.lib.db

LongWritable
A WritableComparable for longs.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce

RawComparator
A Comparator that operates directly on byte representations of objects.

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.

WritableComparable
A Writable which is also Comparable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.counters

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.mapreduce.lib.aggregate

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.db

LongWritable
A WritableComparable for longs.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.fieldsel

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.input

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.mapreduce.lib.join

Writable
A serializable object which implements a simple, efficient, serialization protocol, based on DataInput and DataOutput.

WritableComparator
A Comparator for WritableComparables.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.map

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.partition

BinaryComparable
Interface supported by WritableComparable types supporting ordering/permutation by a representative set of bytes.

RawComparator
A Comparator that operates directly on byte representations of objects.

WritableComparator
A Comparator for WritableComparables.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.lib.reduce

IntWritable
A WritableComparable for ints.

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapreduce.security

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.record

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.

WritableComparable
A Writable which is also Comparable.

WritableComparator
A Comparator for WritableComparables.

Classes in org.apache.hadoop.io used by org.apache.hadoop.record.meta

Writable
A serializable object which implements a simple, efficient, serialization protocol, based on DataInput and DataOutput.

WritableComparable
A Writable which is also Comparable.

Classes in org.apache.hadoop.io used by org.apache.hadoop.security.token

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

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

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

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.yarn.client

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.yarn.client.api

Text
This class stores text using standard UTF8 encoding.

Classes in org.apache.hadoop.io used by org.apache.hadoop.yarn.conf

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.yarn.logaggregation

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.yarn.security

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.yarn.security.client

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.