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.mapred.join
org.apache.hadoop.mapred.lib
org.apache.hadoop.mapreduce.lib.join
org.apache.hadoop.mapreduce.lib.partition
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

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

Modifier and Type	Method	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	Description
static void	WritableComparator.define(Class c, WritableComparator comparator)	Register an optimized comparator for a WritableComparable implementation.

Uses of WritableComparator in org.apache.hadoop.mapred.join

Fields in org.apache.hadoop.mapred.join with type parameters of type WritableComparator

Modifier and Type	Field	Description
protected Class<? extends WritableComparator>	Parser.Node.cmpcl

Methods in org.apache.hadoop.mapred.join that return WritableComparator

Modifier and Type	Method	Description
protected WritableComparator	CompositeRecordReader.getComparator()	Return comparator defining the ordering for RecordReaders in this composite.

Method parameters in org.apache.hadoop.mapred.join with type arguments of type WritableComparator

Modifier and Type	Method	Description
protected void	Parser.Node.setKeyComparator(Class<? extends WritableComparator> cmpcl)

Constructor parameters in org.apache.hadoop.mapred.join with type arguments of type WritableComparator

Modifier	Constructor	Description
	CompositeRecordReader(int id, int capacity, Class<? extends WritableComparator> cmpcl)	Create a RecordReader with capacity children to position id in the parent reader.
	JoinRecordReader(int id, JobConf conf, int capacity, Class<? extends WritableComparator> cmpcl)
	MultiFilterRecordReader(int id, JobConf conf, int capacity, Class<? extends WritableComparator> cmpcl)

Uses of WritableComparator in org.apache.hadoop.mapred.lib

Subclasses of WritableComparator in org.apache.hadoop.mapred.lib

Modifier and Type	Class	Description
class	KeyFieldBasedComparator<K,V>	This comparator implementation provides a subset of the features provided by the Unix/GNU Sort.

Uses of WritableComparator in org.apache.hadoop.mapreduce.lib.join

Fields in org.apache.hadoop.mapreduce.lib.join declared as WritableComparator

Modifier and Type	Field	Description
protected WritableComparator	WrappedRecordReader.cmp

Fields in org.apache.hadoop.mapreduce.lib.join with type parameters of type WritableComparator

Modifier and Type	Field	Description
protected Class<? extends WritableComparator>	Parser.Node.cmpcl

Methods in org.apache.hadoop.mapreduce.lib.join that return WritableComparator

Modifier and Type	Method	Description
protected WritableComparator	CompositeRecordReader.getComparator()	Return comparator defining the ordering for RecordReaders in this composite.

Method parameters in org.apache.hadoop.mapreduce.lib.join with type arguments of type WritableComparator

Modifier and Type	Method	Description
protected void	Parser.Node.setKeyComparator(Class<? extends WritableComparator> cmpcl)

Constructor parameters in org.apache.hadoop.mapreduce.lib.join with type arguments of type WritableComparator

Modifier	Constructor	Description
	CompositeRecordReader(int id, int capacity, Class<? extends WritableComparator> cmpcl)	Create a RecordReader with capacity children to position id in the parent reader.
	JoinRecordReader(int id, Configuration conf, int capacity, Class<? extends WritableComparator> cmpcl)
	MultiFilterRecordReader(int id, Configuration conf, int capacity, Class<? extends WritableComparator> cmpcl)

Uses of WritableComparator in org.apache.hadoop.mapreduce.lib.partition

Subclasses of WritableComparator in org.apache.hadoop.mapreduce.lib.partition

Modifier and Type	Class	Description
class	KeyFieldBasedComparator<K,V>	This comparator implementation provides a subset of the features provided by the Unix/GNU Sort.

Uses of WritableComparator in org.apache.hadoop.record

Subclasses of WritableComparator in org.apache.hadoop.record

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