Apache Hadoop - Class Diagram - Reducer, Mapper, Partitioner, Aggregator, Combiner, Splitter, Reader, Comparator Classes

Mapper

Class Hierarchy for Mapper Classes

Classes that implement Mapper Interface

List of Mapper Classes and Interfaces

Name	Type	Package	Detail
ChainMapper	Class	mapred.lib	Detail
ChainMapper	Class	lib.chain	Detail
FieldSelectionMapper	Class	lib.fieldsel	Detail
IdentityMapper	Class	mapred.lib	Detail
InverseMapper	Class	lib.map	Detail
InverseMapper	Class	mapred.lib	Detail
Mapper	Interface	hadoop.mapred	Detail
MultithreadedMapper	Class	lib.map	Detail
RegexMapper	Class	mapred.lib	Detail
RegexMapper	Class	lib.map	Detail
TokenCountMapper	Class	mapred.lib	Detail
TokenCounterMapper	Class	lib.map	Detail
ValueAggregatorMapper	Class	lib.aggregate	Detail
ValueAggregatorMapper	Class	lib.aggregate	Detail
WrappedMapper	Class	lib.map	Detail

Splitter

Class Hierarchy for Splitter Classes

Classes that implement DBSplitter Interface

List of Splitter Classes and Interfaces

Name	Type	Package	Detail
BigDecimalSplitter	Class	lib.db	Detail
BooleanSplitter	Class	lib.db	Detail
DBSplitter	Interface	lib.db	Detail
DateSplitter	Class	lib.db	Detail
FloatSplitter	Class	lib.db	Detail
IntegerSplitter	Class	lib.db	Detail
OracleDateSplitter	Class	lib.db	Detail
TextSplitter	Class	lib.db	Detail

Aggregator

Class Hierarchy for Aggregator Classes

Classes that implement ValueAggregator Interface

Classes that implement ValueAggregator Interface

List of Aggregator Classes and Interfaces

Name	Type	Package	Detail
ValueAggregator	Interface	lib.aggregate	Detail
ValueAggregator	Interface	lib.aggregate	Detail

Reader

Class Hierarchy for Reader Classes

List of Reader Classes and Interfaces

Name	Type	Package	Detail
ComposableRecordReader	Class	lib.join	Detail
DataDrivenDBRecordReader	Class	lib.db	Detail
InnerJoinRecordReader	Class	lib.join	Detail
InnerJoinRecordReader	Class	mapred.join	Detail
JoinRecordReader	Class	lib.join	Detail
JoinRecordReader	Class	mapred.join	Detail
KeyValueLineRecordReader	Class	hadoop.mapred	Detail
KeyValueLineRecordReader	Class	lib.input	Detail
OracleDBRecordReader	Class	lib.db	Detail
OracleDataDrivenDBRecordReader	Class	lib.db	Detail
OuterJoinRecordReader	Class	mapred.join	Detail
OuterJoinRecordReader	Class	lib.join	Detail
OverrideRecordReader	Class	lib.join	Detail
OverrideRecordReader	Class	mapred.join	Detail
RecordReader	Class	hadoop.mapreduce	Detail
SequenceFileAsTextRecordReader	Class	hadoop.mapred	Detail
SequenceFileAsTextRecordReader	Class	lib.input	Detail
SequenceFileRecordReader	Class	lib.input	Detail
WrappedRecordReader	Class	lib.join	Detail

Combiner

Class Hierarchy for Combiner Classes

List of Combiner Classes and Interfaces

Name	Type	Package	Detail
ValueAggregatorCombiner	Class	lib.aggregate	Detail
ValueAggregatorCombiner	Class	lib.aggregate	Detail

Reducer

Class Hierarchy for Reducer Classes

Classes that implement Reducer Interface

List of Reducer Classes and Interfaces

Name	Type	Package	Detail
ChainReducer	Class	lib.chain	Detail
ChainReducer	Class	mapred.lib	Detail
FieldSelectionReducer	Class	lib.fieldsel	Detail
IdentityReducer	Class	mapred.lib	Detail
IntSumReducer	Class	lib.reduce	Detail
LongSumReducer	Class	lib.reduce	Detail
LongSumReducer	Class	mapred.lib	Detail
Reducer	Interface	hadoop.mapred	Detail
ValueAggregatorReducer	Class	lib.aggregate	Detail
ValueAggregatorReducer	Class	lib.aggregate	Detail
WrappedReducer	Class	lib.reduce	Detail

Partitioner

Class Hierarchy for Partitioner Classes

Classes that implement Partitioner Interface

List of Partitioner Classes and Interfaces

Name	Type	Package	Detail
BinaryPartitioner	Class	mapred.lib	Detail
BinaryPartitioner	Class	lib.partition	Detail
HashPartitioner	Class	mapred.lib	Detail
HashPartitioner	Class	lib.partition	Detail
KeyFieldBasedPartitioner	Class	lib.partition	Detail
KeyFieldBasedPartitioner	Class	mapred.lib	Detail
Partitioner	Class	hadoop.mapreduce	Detail
Partitioner	Interface	hadoop.mapred	Detail
TotalOrderPartitioner	Class	lib.partition	Detail
TotalOrderPartitioner	Class	mapred.lib	Detail

Comparator

Class Hierarchy for Comparator Classes

Classes that implement RawComparator Interface

List of Comparator Classes and Interfaces

Name	Type	Package	Detail
JavaSerializationComparator	Class	io.serializer	Detail
KeyFieldBasedComparator	Class	mapred.lib	Detail
KeyFieldBasedComparator	Class	lib.partition	Detail
RawComparator	Interface	hadoop.io	Detail
RecordComparator	Class	hadoop.record	Detail
WritableComparator	Class	hadoop.io	Detail