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

java.lang.Object
  org.apache.crunch.Pair<K,V>

All Implemented Interfaces:

Serializable, Comparable<Pair<K,V>>, Tuple

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

A convenience class for two-element Tuples.

See Also:

Serialized Form

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>>