See: Description
| Interface | Description |
|---|---|
| ByteBufferPool | |
| Closeable | Deprecated
use java.io.Closeable
|
| MapFile.Reader.Option | |
| MapFile.Writer.Option | |
| RawComparator<T> |
A
Comparator that operates directly on byte representations of
objects. |
| ReadaheadPool.ReadaheadRequest |
An outstanding readahead request that has been submitted to
the pool.
|
| 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.ValueBytes |
The interface to 'raw' values of SequenceFiles.
|
| SequenceFile.Writer.Option | |
| Stringifier<T> |
Stringifier interface offers two methods to convert an object
to a string representation and restore the object given its
string representation.
|
| Writable |
A serializable object which implements a simple, efficient, serialization
protocol, based on
DataInput and DataOutput. |
| WritableComparable<T> |
A
Writable which is also Comparable. |
| WritableFactory |
A factory for a class of Writable.
|
| 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.
|
| ArrayFile |
A dense file-based mapping from integers to values.
|
| ArrayFile.Reader |
Provide access to an existing array file.
|
| ArrayFile.Writer |
Write a new array file.
|
| ArrayPrimitiveWritable |
This is a wrapper class.
|
| ArrayWritable |
A Writable for arrays containing instances of a class.
|
| BinaryComparable |
Interface supported by
WritableComparable
types supporting ordering/permutation by a representative set of bytes. |
| BloomMapFile |
This class extends
MapFile and provides very much the same
functionality. |
| BloomMapFile.Reader | |
| BloomMapFile.Writer | |
| BooleanWritable |
A WritableComparable for booleans.
|
| BooleanWritable.Comparator |
A Comparator optimized for BooleanWritable.
|
| BytesWritable |
A byte sequence that is usable as a key or value.
|
| BytesWritable.Comparator |
A Comparator optimized for BytesWritable.
|
| ByteWritable |
A WritableComparable for a single byte.
|
| ByteWritable.Comparator |
A Comparator optimized for ByteWritable.
|
| CompressedWritable |
A base-class for Writables which store themselves compressed and lazily
inflate on field access.
|
| DataInputByteBuffer | |
| DataOutputOutputStream |
OutputStream implementation that wraps a DataOutput.
|
| DefaultStringifier<T> |
DefaultStringifier is the default implementation of the
Stringifier
interface which stringifies the objects using base64 encoding of the
serialized version of the objects. |
| DoubleWritable |
Writable for Double values.
|
| DoubleWritable.Comparator |
A Comparator optimized for DoubleWritable.
|
| ElasticByteBufferPool |
This is a simple ByteBufferPool which just creates ByteBuffers as needed.
|
| EnumSetWritable<E extends Enum<E>> |
A Writable wrapper for EnumSet.
|
| FloatWritable |
A WritableComparable for floats.
|
| FloatWritable.Comparator |
A Comparator optimized for FloatWritable.
|
| GenericWritable |
A wrapper for Writable instances.
|
| IntWritable |
A WritableComparable for ints.
|
| IntWritable.Comparator |
A Comparator optimized for IntWritable.
|
| IOUtils |
An utility class for I/O related functionality.
|
| IOUtils.NullOutputStream |
The /dev/null of OutputStreams.
|
| LongWritable |
A WritableComparable for longs.
|
| LongWritable.Comparator |
A Comparator optimized for LongWritable.
|
| LongWritable.DecreasingComparator |
A decreasing Comparator optimized for LongWritable.
|
| MapFile |
A file-based map from keys to values.
|
| MapFile.Merger |
Class to merge multiple MapFiles of same Key and Value types to one MapFile
|
| MapFile.Reader |
Provide access to an existing map.
|
| MapFile.Writer |
Writes a new map.
|
| MapWritable |
A Writable Map.
|
| MD5Hash |
A Writable for MD5 hash values.
|
| MD5Hash.Comparator |
A WritableComparator optimized for MD5Hash keys.
|
| MultipleIOException.Builder |
Build an
IOException using MultipleIOException
if there are more than one. |
| NullWritable |
Singleton Writable with no data.
|
| NullWritable.Comparator |
A Comparator "optimized" for NullWritable.
|
| ObjectWritable |
A polymorphic Writable that writes an instance with it's class name.
|
| SecureIOUtils |
This class provides secure APIs for opening and creating files on the local
disk.
|
| SequenceFile |
SequenceFiles are flat files consisting of binary key/value
pairs. |
| SequenceFile.Metadata |
The class encapsulating with the metadata of a file.
|
| SequenceFile.Reader |
Reads key/value pairs from a sequence-format file.
|
| SequenceFile.Sorter |
Sorts key/value pairs in a sequence-format file.
|
| SequenceFile.Writer |
Write key/value pairs to a sequence-format file.
|
| SetFile |
A file-based set of keys.
|
| SetFile.Reader |
Provide access to an existing set file.
|
| SetFile.Writer |
Write a new set file.
|
| ShortWritable |
A WritableComparable for shorts.
|
| ShortWritable.Comparator |
A Comparator optimized for ShortWritable.
|
| SortedMapWritable<K extends WritableComparable<? super K>> |
A Writable SortedMap.
|
| Text |
This class stores text using standard UTF8 encoding.
|
| Text.Comparator |
A WritableComparator optimized for Text keys.
|
| TwoDArrayWritable |
A Writable for 2D arrays containing a matrix of instances of a class.
|
| UTF8.Comparator |
A WritableComparator optimized for UTF8 keys.
|
| VersionedWritable |
A base class for Writables that provides version checking.
|
| VIntWritable |
A WritableComparable for integer values stored in variable-length format.
|
| VLongWritable |
A WritableComparable for longs in a variable-length format.
|
| WritableComparator |
A Comparator for
WritableComparables. |
| WritableFactories |
Factories for non-public writables.
|
| WritableUtils |
| Enum | Description |
|---|---|
| SequenceFile.CompressionType |
The compression type used to compress key/value pairs in the
SequenceFile. |
| Exception | Description |
|---|---|
| MultipleIOException |
Encapsulate a list of
IOException into an IOException |
| SecureIOUtils.AlreadyExistsException |
Signals that an attempt to create a file at a given pathname has failed
because another file already existed at that path.
|
| VersionMismatchException |
Thrown by
VersionedWritable.readFields(DataInput) when the
version of an object being read does not match the current implementation
version as returned by VersionedWritable.getVersion(). |
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