org.apache.hadoop.hbase.util

Class Pair<T1,T2>

java.lang.Object

org.apache.hadoop.hbase.util.Pair<T1,T2>

Type Parameters:

T1 -

T2 -

All Implemented Interfaces:

Serializable

@InterfaceAudience.Public
public class Pair<T1,T2>
extends Object
implements Serializable

A generic class for pairs.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected T1	first
protected T2	second
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor and Description
Pair() Default constructor.
Pair(T1 a, T2 b) Constructor

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
private static boolean	equals(Object x, Object y)
T1	getFirst() Return the first element stored in the pair.
T2	getSecond() Return the second element stored in the pair.
int	hashCode()
static <T1,T2> Pair<T1,T2>	newPair(T1 a, T2 b) Constructs a new pair, inferring the type via the passed arguments
void	setFirst(T1 a) Replace the first element of the pair.
void	setSecond(T2 b) Replace the second element of the pair.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

first

protected T1 first

second

protected T2 second

Constructor Detail

Pair

public Pair()

Default constructor.

Pair

public Pair(T1 a,
            T2 b)

Constructor

Parameters:

a - operand

b - operand

Method Detail

newPair

public static <T1,T2> Pair<T1,T2> newPair(T1 a,
                                          T2 b)

Constructs a new pair, inferring the type via the passed arguments

Type Parameters:

T1 - type for first

T2 - type for second

Parameters:

a - first element

b - second element

Returns:

a new pair containing the passed arguments

setFirst

public void setFirst(T1 a)

Replace the first element of the pair.

Parameters:

a - operand

setSecond

public void setSecond(T2 b)

Replace the second element of the pair.

Parameters:

b - operand

getFirst

public T1 getFirst()

Return the first element stored in the pair.

Returns:

T1

getSecond

public T2 getSecond()

Return the second element stored in the pair.

Returns:

T2

equals

private static boolean equals(Object x,
                              Object y)

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object