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.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.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.
 



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