Name | Description | Type | Package | Framework |
AbstractMapWritable | Abstract base class for MapWritable and SortedMapWritable Unlike org. | Class | org.apache.hadoop.io | Apache Hadoop |
ArrayFile | A dense file-based mapping from integers to values. | Class | org.apache.hadoop.io | Apache Hadoop |
ArrayPrimitiveWritable | This is a wrapper class. | Class | org.apache.hadoop.io | Apache Hadoop |
ArrayWritable | A Writable for arrays containing instances of a class. | Class | org.apache.hadoop.io | Apache Hadoop |
AvroReflectSerialization | Serialization for Avro Reflect classes. | Class | org.apache.hadoop.io.serializer.avro | Apache Hadoop |
AvroSerialization | Base class for providing serialization to Avro types. | Class | org.apache.hadoop.io.serializer.avro | Apache Hadoop |
AvroSpecificSerialization | Serialization for Avro Specific classes. | Class | org.apache.hadoop.io.serializer.avro | Apache Hadoop |
BinaryComparable | Interface supported by WritableComparable types supporting ordering/permutation by a representative set of bytes. | Class | org.apache.hadoop.io | Apache Hadoop |
BlockCompressorStream | A CompressorStream which works with 'block-based' based compression algorithms, as opposed to | Class | org.apache.hadoop.io.compress | Apache Hadoop |
BlockDecompressorStream | A DecompressorStream which works with 'block-based' based compression algorithms, as opposed to | Class | org.apache.hadoop.io.compress | Apache Hadoop |
BloomMapFile | This class extends MapFile and provides very much the same functionality. | Class | org.apache.hadoop.io | Apache Hadoop |
BooleanWritable | A WritableComparable for booleans. | Class | org.apache.hadoop.io | Apache Hadoop |
ByteBufferPool | Interface | org.apache.hadoop.io | Apache Hadoop | |
BytesWritable | A byte sequence that is usable as a key or value. | Class | org.apache.hadoop.io | Apache Hadoop |
ByteWritable | A WritableComparable for a single byte. | Class | org.apache.hadoop.io | Apache Hadoop |
BZip2Codec | This class provides output and input streams for bzip2 compression and decompression. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
CodecPool | A global compressor/decompressor pool used to save and reuse (possibly native) compression/decompression codecs. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
CompressedWritable | A base-class for Writables which store themselves compressed and lazily inflate on field access. | Class | org.apache.hadoop.io | Apache Hadoop |
CompressionCodec | This class encapsulates a streaming compression/decompression pair. | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
CompressionCodecFactory | A factory that will find the correct codec for a given filename. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
CompressionInputStream | A compression input stream. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
CompressionOutputStream | A compression output stream. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
Compressor | Specification of a stream-based 'compressor' which can be plugged into a CompressionOutputStream to compress data. | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
CompressorStream | Class | org.apache.hadoop.io.compress | Apache Hadoop | |
DataOutputOutputStream | OutputStream implementation that wraps a DataOutput. | Class | org.apache.hadoop.io | Apache Hadoop |
Decompressor | Specification of a stream-based 'de-compressor' which can be plugged into a CompressionInputStream to compress data. | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
DecompressorStream | Class | org.apache.hadoop.io.compress | Apache Hadoop | |
DefaultCodec | Class | org.apache.hadoop.io.compress | Apache Hadoop | |
DefaultStringifier | DefaultStringifier is the default implementation of the Stringifier interface which stringifies the objects using base64 encoding of the | Class | org.apache.hadoop.io | Apache Hadoop |
DirectDecompressionCodec | This class encapsulates a codec which can decompress direct bytebuffers. | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
DirectDecompressor | Specification of a direct ByteBuffer 'de-compressor'. | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
DoubleWritable | Writable for Double values. | Class | org.apache.hadoop.io | Apache Hadoop |
ElasticByteBufferPool | This is a simple ByteBufferPool which just creates ByteBuffers as needed. | Class | org.apache.hadoop.io | Apache Hadoop |
EnumSetWritable | A Writable wrapper for EnumSet. | Class | org.apache.hadoop.io | Apache Hadoop |
FloatWritable | A WritableComparable for floats. | Class | org.apache.hadoop.io | Apache Hadoop |
GenericWritable | A wrapper for Writable instances. | Class | org.apache.hadoop.io | Apache Hadoop |
GzipCodec | This class creates gzip compressors/decompressors. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
IntWritable | A WritableComparable for ints. | Class | org.apache.hadoop.io | Apache Hadoop |
IOUtils | An utility class for I/O related functionality. | Class | org.apache.hadoop.io | Apache Hadoop |
JavaSerialization | An experimental Serialization for Java Serializable classes. | Class | org.apache.hadoop.io.serializer | Apache Hadoop |
JavaSerializationComparator | A RawComparator that uses a JavaSerialization Deserializer to deserialize objects that are then compared via | Class | org.apache.hadoop.io.serializer | Apache Hadoop |
LongWritable | A WritableComparable for longs. | Class | org.apache.hadoop.io | Apache Hadoop |
MapFile | A file-based map from keys to values. | Class | org.apache.hadoop.io | Apache Hadoop |
MapWritable | Class | org.apache.hadoop.io | Apache Hadoop | |
MD5Hash | A Writable for MD5 hash values. | Class | org.apache.hadoop.io | Apache Hadoop |
MetaBlockAlreadyExists | Exception - Meta Block with the same name already exists. | Class | org.apache.hadoop.io.file.tfile | Apache Hadoop |
MetaBlockDoesNotExist | Exception - No such Meta Block with the given name. | Class | org.apache.hadoop.io.file.tfile | Apache Hadoop |
MultipleIOException | Encapsulate a list of IOException into an IOExceptionSee Also:Serialized Form | Class | org.apache.hadoop.io | Apache Hadoop |
NullWritable | Singleton Writable with no data. | Class | org.apache.hadoop.io | Apache Hadoop |
ObjectWritable | A polymorphic Writable that writes an instance with it's class name. | Class | org.apache.hadoop.io | Apache Hadoop |
RawComparable | Interface for objects that can be compared through RawComparator. | Interface | org.apache.hadoop.io.file.tfile | Apache Hadoop |
RawComparator | A Comparator that operates directly on byte representations ofSee Also:DeserializerComparator | Interface | org.apache.hadoop.io | Apache Hadoop |
SequenceFile | SequenceFiles are flat files consisting of binary key/value SequenceFile provides SequenceFile. | Class | org.apache.hadoop.io | Apache Hadoop |
SetFile | A file-based set of keys. | Class | org.apache.hadoop.io | Apache Hadoop |
ShortWritable | A WritableComparable for shorts. | Class | org.apache.hadoop.io | Apache Hadoop |
SortedMapWritable | A Writable SortedMap. | Class | org.apache.hadoop.io | Apache Hadoop |
SplitCompressionInputStream | An InputStream covering a range of compressed data. | Class | org.apache.hadoop.io.compress | Apache Hadoop |
SplittableCompressionCodec | This interface is meant to be implemented by those compression codecs which are capable to compress / de-compress a stream starting at any | Interface | org.apache.hadoop.io.compress | Apache Hadoop |
Stringifier | Stringifier interface offers two methods to convert an object to a string representation and restore the object given its | Interface | org.apache.hadoop.io | Apache Hadoop |
Text | This class stores text using standard UTF8 encoding. | Class | org.apache.hadoop.io | Apache Hadoop |
TFile | A TFile is a container of key-value pairs. | Class | org.apache.hadoop.io.file.tfile | Apache Hadoop |
TwoDArrayWritable | A Writable for 2D arrays containing a matrix of instances of a class. | Class | org.apache.hadoop.io | Apache Hadoop |
Utils | Supporting Utility classes used by TFile, and shared by users of TFile. | Class | org.apache.hadoop.io.file.tfile | Apache Hadoop |
VersionedWritable | A base class for Writables that provides version checking. | Class | org.apache.hadoop.io | Apache Hadoop |
VersionMismatchException | Thrown by VersionedWritable. | Class | org.apache.hadoop.io | Apache Hadoop |
VIntWritable | A WritableComparable for integer values stored in variable-length format. | Class | org.apache.hadoop.io | Apache Hadoop |
VLongWritable | A WritableComparable for longs in a variable-length format. | Class | org.apache.hadoop.io | Apache Hadoop |
Writable | A serializable object which implements a simple, efficient, serialization protocol, based on DataInput and DataOutput. | Interface | org.apache.hadoop.io | Apache Hadoop |
WritableComparable | A Writable which is also Comparable. | Interface | org.apache.hadoop.io | Apache Hadoop |
WritableComparator | A Comparator for WritableComparables. | Class | org.apache.hadoop.io | Apache Hadoop |
WritableFactories | Factories for non-public writables. | Class | org.apache.hadoop.io | Apache Hadoop |
WritableFactory | A factory for a class of Writable. | Interface | org.apache.hadoop.io | Apache Hadoop |
WritableSerialization | A Serialization for Writables that delegates to Writable. | Class | org.apache.hadoop.io.serializer | Apache Hadoop |
WritableUtils | Class | org.apache.hadoop.io | Apache Hadoop | |