com.net2plan.utils

Class Pair<A,B>

Object

com.net2plan.utils.Pair<A,B>

public class Pair<A,B>
extends Object

A pair consisting of two elements. There is no restriction on the type of the objects that may be stored.

Example:

Map<String, Object> map = new HashMap<>();
map.put("parameter", "value");
Integer number = new Integer(3);

Triple<Map<String, Object>, Integer> data = new Triple<>(map, number);

...

Map<String, Object> myMap = data.getFirst();
Integer myNumber = data.getSecond();

Since:

0.2.0

Author:

Pablo Pavon-Marino, Jose-Luis Izquierdo-Zaragoza

Constructor Summary

Constructors

Constructor and Description
Pair(A a, B b) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
A	getFirst() Returns the first element from this pair.
B	getSecond() Returns the second element from this pair.
int	hashCode()
static <A,B> Pair<A,B>	of(A a, B b) This factory allows the pair to be created using inference to obtain the generic types.
void	setFirst(A a) Sets the first element from this pair.
void	setSecond(B b) Sets the second element from this pair.
String	toString() Returns a String representation of this pair using the format (first, second).

Methods inherited from class Object

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

Constructor Detail

Pair

public Pair(A a,
    B b)

Default constructor.

Parameters:

a - The first element, may be null

b - The second element, may be null

Since:

0.2.0

Method Detail

getFirst

public A getFirst()

Returns the first element from this pair.

Returns:

The first element from this pair

Since:

0.2.0

getSecond

public B getSecond()

Returns the second element from this pair.

Returns:

The second element from this pair

Since:

0.2.0

of

public static <A,B> Pair<A,B> of(A a,
                 B b)

This factory allows the pair to be created using inference to obtain the generic types.

Parameters:

a - The first element, may be null

b - The second element, may be null

Returns:

A pair formed from two parameters

Since:

0.2.0

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

setFirst

public void setFirst(A a)

Sets the first element from this pair.

Since:

0.2.0

setSecond

public void setSecond(B b)

Sets the second element from this pair.

Since:

0.2.0

toString

public String toString()

Returns a String representation of this pair using the format (first, second).

Overrides:

toString in class Object

Returns:

A String representation of this pair

Since:

0.2.0