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Pair (Apache Crunch 0.3.0-incubating API)

org.apache.crunch
Class Pair<K,V>

java.lang.Object
  extended by org.apache.crunch.Pair<K,V>
All Implemented Interfaces:
Comparable<Pair<K,V>>, Tuple

public class Pair<K,V>
extends Object
implements Tuple, Comparable<Pair<K,V>>

A convenience class for two-element Tuples.


Constructor Summary
Pair(K first, V second)
           
 
Method Summary
 int compareTo(Pair<K,V> o)
           
 boolean equals(Object obj)
           
 K first()
           
 Object get(int index)
          Returns the Object at the given index.
 int hashCode()
           
static
<T,U> Pair<T,U>
of(T first, U second)
           
 V second()
           
 int size()
          Returns the number of elements in this Tuple.
 String toString()
           
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

Pair

public Pair(K first,
            V second)
Method Detail

of

public static <T,U> Pair<T,U> of(T first,
                                 U second)

first

public K first()

second

public V second()

get

public Object get(int index)
Description copied from interface: Tuple
Returns the Object at the given index.

Specified by:
get in interface Tuple

size

public int size()
Description copied from interface: Tuple
Returns the number of elements in this Tuple.

Specified by:
size in interface Tuple

hashCode

public int hashCode()
Overrides:
hashCode in class Object

equals

public boolean equals(Object obj)
Overrides:
equals in class Object

toString

public String toString()
Overrides:
toString in class Object

compareTo

public int compareTo(Pair<K,V> o)
Specified by:
compareTo in interface Comparable<Pair<K,V>>


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