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PGroupedTableType.PairIterableMapFn (Apache Crunch 0.3.0-incubating API)

org.apache.crunch.types
Class PGroupedTableType.PairIterableMapFn<K,V>

java.lang.Object
  extended by org.apache.crunch.DoFn<S,T>
      extended by org.apache.crunch.MapFn<Pair<Object,Iterable<Object>>,Pair<K,Iterable<V>>>
          extended by org.apache.crunch.types.PGroupedTableType.PairIterableMapFn<K,V>
All Implemented Interfaces:
Serializable
Enclosing class:
PGroupedTableType<K,V>

public static class PGroupedTableType.PairIterableMapFn<K,V>
extends MapFn<Pair<Object,Iterable<Object>>,Pair<K,Iterable<V>>>

See Also:
Serialized Form

Constructor Summary
PGroupedTableType.PairIterableMapFn(MapFn<Object,K> keys, MapFn<Object,V> values)
           
 
Method Summary
 void initialize()
          Called during the setup of the MapReduce job this DoFn is associated with.
 Pair<K,Iterable<V>> map(Pair<Object,Iterable<Object>> input)
          Maps the given input into an instance of the output type.
 
Methods inherited from class org.apache.crunch.MapFn
process, scaleFactor
 
Methods inherited from class org.apache.crunch.DoFn
cleanup, configure, setConfigurationForTest, setContext
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PGroupedTableType.PairIterableMapFn

public PGroupedTableType.PairIterableMapFn(MapFn<Object,K> keys,
                                           MapFn<Object,V> values)
Method Detail

initialize

public void initialize()
Description copied from class: DoFn
Called during the setup of the MapReduce job this DoFn is associated with. Subclasses may override this method to do appropriate initialization.

Overrides:
initialize in class DoFn<Pair<Object,Iterable<Object>>,Pair<K,Iterable<V>>>

map

public Pair<K,Iterable<V>> map(Pair<Object,Iterable<Object>> input)
Description copied from class: MapFn
Maps the given input into an instance of the output type.

Specified by:
map in class MapFn<Pair<Object,Iterable<Object>>,Pair<K,Iterable<V>>>


Copyright © 2012 The Apache Software Foundation. All Rights Reserved.