Package | Description |
---|---|
org.apache.hadoop.mapred.join |
Class and Description |
---|
ComposableInputFormat
Refinement of InputFormat requiring implementors to provide
ComposableRecordReader instead of RecordReader.
|
ComposableRecordReader
Additional operations required of a RecordReader to participate in a join.
|
CompositeRecordReader
A RecordReader that can effect joins of RecordReaders sharing a common key
type and partitioning.
|
JoinRecordReader
Base class for Composite joins returning Tuples of arbitrary Writables.
|
MultiFilterRecordReader
Base class for Composite join returning values derived from multiple
sources, but generally not tuples.
|
Parser.Node |
Parser.Token
Tagged-union type for tokens from the join expression.
|
Parser.TType |
ResetableIterator
This defines an interface to a stateful Iterator that can replay elements
added to it directly.
|
TupleWritable
Writable type storing multiple
Writable s. |
Copyright © 2023 Apache Software Foundation. All rights reserved.