Uses of Package
org.apache.hadoop.io

Packages that use org.apache.hadoop.io
org.apache.hadoop.dfs A distributed implementation of FileSystem
org.apache.hadoop.examples Hadoop example code. 
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.ipc Tools to help define network clients and servers. 
org.apache.hadoop.mapred A system for scalable, fault-tolerant, distributed computation over large data collections. 
org.apache.hadoop.mapred.lib Library of generally useful mappers, reducers, and partitioners. 
org.apache.hadoop.record 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.tools   
org.apache.hadoop.util Common utilities. 
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.dfs
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.examples
Closeable
          That which can be closed.
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.io
DataOutputBuffer
          A reusable DataOutput implementation that writes to an in-memory buffer.
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.Writer
          Writes a new 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.
SequenceFile.CompressionType
          The type of compression.
SequenceFile.ValueBytes
          The interface to 'raw' values of SequenceFiles.
SequenceFile.Writer
          Write key/value pairs to a sequence-format file.
Text
          This class stores text using standard UTF8 encoding.
UTF8
          Deprecated. replaced by Text
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and 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.ipc
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred
Closeable
          That which can be closed.
MapFile.Reader
          Provide access to an existing map.
SequenceFile.Reader
          Reads key/value pairs from a sequence-format file.
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
WritableComparator
          A Comparator for WritableComparables.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.mapred.lib
Closeable
          That which can be closed.
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.record
Text
          This class stores text using standard UTF8 encoding.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.tools
Closeable
          That which can be closed.
Text.Comparator
          A WritableComparator optimized for Text keys.
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
WritableComparator
          A Comparator for WritableComparables.
 

Classes in org.apache.hadoop.io used by org.apache.hadoop.util
Closeable
          That which can be closed.
Writable
          A simple, efficient, serialization protocol, based on DataInput and DataOutput.
WritableComparable
          An interface which extends both Writable and Comparable.
 



Copyright © 2006 The Apache Software Foundation