org.apache.crunch.lib.sort

Class SortFns.KeyExtraction<V extends Tuple>

java.lang.Object

org.apache.crunch.lib.sort.SortFns.KeyExtraction<V>

Enclosing class:

SortFns

public static class SortFns.KeyExtraction<V extends Tuple>
extends Object

Utility class for encapsulating key extraction logic and serialization information about key extraction.

Constructor Summary

Constructors

Constructor and Description
KeyExtraction(PType<V> ptype, Sort.ColumnOrder[] columnOrder)

Method Summary

Modifier and Type	Method and Description
MapFn<V,Object>	getByFn()
PType<Object>	getKeyType()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

KeyExtraction

public KeyExtraction(PType<V> ptype,
                     Sort.ColumnOrder[] columnOrder)

Method Detail

getByFn

public MapFn<V,Object> getByFn()

getKeyType

public PType<Object> getKeyType()