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Interface Summary | |
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ComposableInputFormat<K extends WritableComparable,V extends Writable> | Refinement of InputFormat requiring implementors to provide ComposableRecordReader instead of RecordReader. |
ComposableRecordReader<K extends WritableComparable,V extends Writable> | Additional operations required of a RecordReader to participate in a join. |
ResetableIterator<T extends Writable> | This defines an interface to a stateful Iterator that can replay elements added to it directly. |
Class Summary | |
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ArrayListBackedIterator<X extends Writable> | This class provides an implementation of ResetableIterator. |
CompositeInputFormat<K extends WritableComparable> | An InputFormat capable of performing joins over a set of data sources sorted and partitioned the same way. |
CompositeInputSplit | This InputSplit contains a set of child InputSplits. |
CompositeRecordReader<K extends WritableComparable,V extends Writable,X extends Writable> | A RecordReader that can effect joins of RecordReaders sharing a common key type and partitioning. |
InnerJoinRecordReader<K extends WritableComparable> | Full inner join. |
JoinRecordReader<K extends WritableComparable> | Base class for Composite joins returning Tuples of arbitrary Writables. |
MultiFilterRecordReader<K extends WritableComparable,V extends Writable> | Base class for Composite join returning values derived from multiple sources, but generally not tuples. |
OuterJoinRecordReader<K extends WritableComparable> | Full outer join. |
OverrideRecordReader<K extends WritableComparable,V extends Writable> | Prefer the "rightmost" data source for this key. |
Parser | Very simple shift-reduce parser for join expressions. |
Parser.Node | |
Parser.NodeToken | |
Parser.NumToken | |
Parser.StrToken | |
Parser.Token | Tagged-union type for tokens from the join expression. |
StreamBackedIterator<X extends Writable> | This class provides an implementation of ResetableIterator. |
TupleWritable | Writable type storing multiple Writable s. |
WrappedRecordReader<K extends WritableComparable,U extends Writable> | Proxy class for a RecordReader participating in the join framework. |
Enum Summary | |
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Parser.TType |
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