Uses of Class org.apache.hadoop.mapred.join.CompositeRecordReader (Hadoop 0.20.2-CDH3B4 API)
Date: 2011-02-21

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## Uses of Class
org.apache.hadoop.mapred.join.CompositeRecordReader

Packages that use CompositeRecordReader
org.apache.hadoop.mapred.join | Given a set of sorted datasets keyed with the same class and yielding equal partitions, it is possible to effect a join of those datasets prior to the map.

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

Subclasses of CompositeRecordReader in org.apache.hadoop.mapred.join
`class` | `InnerJoinRecordReader<K extends WritableComparable>` Full inner join.
`class` | `JoinRecordReader<K extends WritableComparable>` Base class for Composite joins returning Tuples of arbitrary Writables.
`class` | `MultiFilterRecordReader<K extends WritableComparable,V extends Writable>` Base class for Composite join returning values derived from multiple sources, but generally not tuples.
`class` | `OuterJoinRecordReader<K extends WritableComparable>` Full outer join.
`class` | `OverrideRecordReader<K extends WritableComparable,V extends Writable>` Prefer the "rightmost" data source for this key.

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