Uses of Class
org.apache.hadoop.io.WritableComparator

Packages that use WritableComparator

Package	Description
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.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.

Uses of WritableComparator in org.apache.hadoop.io

Subclasses of WritableComparator in org.apache.hadoop.io

Modifier and Type	Class and Description
static class	BooleanWritable.Comparator A Comparator optimized for BooleanWritable.
static class	BytesWritable.Comparator A Comparator optimized for BytesWritable.
static class	ByteWritable.Comparator A Comparator optimized for ByteWritable.
static class	DoubleWritable.Comparator A Comparator optimized for DoubleWritable.
static class	FloatWritable.Comparator A Comparator optimized for FloatWritable.
static class	IntWritable.Comparator A Comparator optimized for IntWritable.
static class	LongWritable.Comparator A Comparator optimized for LongWritable.
static class	LongWritable.DecreasingComparator A decreasing Comparator optimized for LongWritable.
static class	MD5Hash.Comparator A WritableComparator optimized for MD5Hash keys.
static class	NullWritable.Comparator A Comparator "optimized" for NullWritable.
static class	ShortWritable.Comparator A Comparator optimized for ShortWritable.
static class	Text.Comparator A WritableComparator optimized for Text keys.
static class	UTF8.Comparator Deprecated. A WritableComparator optimized for UTF8 keys.

Methods in org.apache.hadoop.io that return WritableComparator

Modifier and Type	Method and Description
static WritableComparator	WritableComparator.get(Class<? extends WritableComparable> c) For backwards compatibility.
static WritableComparator	WritableComparator.get(Class<? extends WritableComparable> c, Configuration conf) Get a comparator for a WritableComparable implementation.

Methods in org.apache.hadoop.io with parameters of type WritableComparator

Modifier and Type	Method and Description
static MapFile.Writer.Option	MapFile.Writer.comparator(WritableComparator value)
static MapFile.Reader.Option	MapFile.Reader.comparator(WritableComparator value)
static void	WritableComparator.define(Class c, WritableComparator comparator) Register an optimized comparator for a WritableComparable implementation.
protected void	MapFile.Reader.open(Path dir, WritableComparator comparator, Configuration conf, SequenceFile.Reader.Option... options)

Constructors in org.apache.hadoop.io with parameters of type WritableComparator

Constructor and Description
BloomMapFile.Reader(FileSystem fs, String dirName, WritableComparator comparator, Configuration conf) Deprecated.
BloomMapFile.Reader(FileSystem fs, String dirName, WritableComparator comparator, Configuration conf, boolean open) Deprecated.
BloomMapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass) Deprecated.
BloomMapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress) Deprecated.
BloomMapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress) Deprecated.
BloomMapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, Progressable progress) Deprecated.
MapFile.Reader(FileSystem fs, String dirName, WritableComparator comparator, Configuration conf) Deprecated.
MapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass) Deprecated. Use Writer(Configuration, Path, Option...) instead.
MapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress) Deprecated. Use Writer(Configuration, Path, Option...) instead.
MapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, CompressionCodec codec, Progressable progress) Deprecated. Use Writer(Configuration, Path, Option...) instead.
MapFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, Class valClass, SequenceFile.CompressionType compress, Progressable progress) Deprecated. Use Writer(Configuration, Path, Option...)} instead.
SetFile.Reader(FileSystem fs, String dirName, WritableComparator comparator, Configuration conf) Construct a set reader for the named set using the named comparator.
SetFile.Writer(Configuration conf, FileSystem fs, String dirName, WritableComparator comparator, SequenceFile.CompressionType compress) Create a set naming the element comparator and compression type.

Uses of WritableComparator in org.apache.hadoop.record

Subclasses of WritableComparator in org.apache.hadoop.record

Modifier and Type	Class and Description
class	RecordComparator Deprecated. Replaced by Avro.