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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

clone, finalize, 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>>