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Package org.apache.crunch.fn

Commonly used functions for manipulating collections.

See:
Description

Class Summary

Aggregators	A collection of pre-defined Aggregators.
Aggregators.SimpleAggregator<T>	Base class for aggregators that do not require any initialization.
CompositeMapFn<R,S,T>
ExtractKeyFn<K,V>	Wrapper function for converting a MapFn into a key-value pair that is used to convert from a PCollection<V> to a PTable<K, V>.
FilterFns	A collection of pre-defined FilterFn implementations.
IdentityFn<T>
PairMapFn<K,V,S,T>

Package org.apache.crunch.fn Description

Commonly used functions for manipulating collections.