com.net2plan.utils

Class Quadruple<A,B,C,D>

java.lang.Object

com.net2plan.utils.Quadruple<A,B,C,D>

Type Parameters:

A - Class type for the first element

B - Class type for the second element

C - Class type for the third element

D - Class type for the fourth element

public class Quadruple<A,B,C,D>
extends java.lang.Object

A tuple consisting of four 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);
String string = "Test";
List list = new ArrayList();

Quadruple<Map<String, Object>, Integer, String, List> data = new Quadruple<>(map, number, string, list);

...

Map<String, Object> myMap = data.getFirst();
Integer myNumber = data.getSecond();
String myString = data.getThird();
List myList = data.getFourth();

Since:

0.2.0

Author:

Pablo Pavon-Marino, Jose-Luis Izquierdo-Zaragoza

Constructor Summary

Constructors

Constructor and Description
Quadruple(A a, B b, C c, D d) Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o) Indicates whether some other object is "equal to" this one.
A	getFirst() Returns the first element from this quadruple.
D	getFourth() Returns the fourth element from this quadruple.
B	getSecond() Returns the second element from this quadruple.
C	getThird() Returns the third element from this quadruple.
int	hashCode() Returns a hash code value for the object.
static <A,B,C,D> Quadruple<A,B,C,D>	of(A a, B b, C c, D d) This factory allows the quadruple to be created using inference to obtain the generic types.
void	setFirst(A a) Sets the first element from this quadruple.
void	setFourth(D d) Sets the fourth element from this quadruple.
void	setSecond(B b) Sets the second element from this quadruple.
void	setThird(C c) Sets the third element from this quadruple.
java.lang.String	toString() Returns a String representation of this quadruple using the format (first, second, third, fourth).

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Quadruple

public Quadruple(A a,
         B b,
         C c,
         D d)

Default constructor.

Parameters:

a - The first element, may be null

b - The second element, may be null

c - The third element, may be null

d - The fourth element, may be null

Since:

1.0

Method Detail

getFirst

public A getFirst()

Returns the first element from this quadruple.

Returns:

The first element from this quadruple

Since:

0.2.0

getSecond

public B getSecond()

Returns the second element from this quadruple.

Returns:

The second element from this quadruple

Since:

0.2.0

getThird

public C getThird()

Returns the third element from this quadruple.

Returns:

The third element from this quadruple

Since:

0.2.0

getFourth

public D getFourth()

Returns the fourth element from this quadruple.

Returns:

The fourth element from this quadruple

Since:

0.2.0

of

public static <A,B,C,D> Quadruple<A,B,C,D> of(A a,
                              B b,
                              C c,
                              D d)

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

Type Parameters:

A - Class type for the first element

B - Class type for the second element

C - Class type for the third element

D - Class type for the fourth element

Parameters:

a - The first element, may be null

b - The second element, may be null

c - The third element, may be null

d - The fourth element, may be null

Returns:

A quadruple formed from four parameters

Since:

0.2.0

equals

public boolean equals(java.lang.Object o)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class java.lang.Object

Parameters:

o - Reference object with which to compare

Returns:

true if this object is the same as the o argument; false otherwise

Since:

0.2.0

hashCode

public int hashCode()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

Overrides:

hashCode in class java.lang.Object

Returns:

Hash code value for this object

Since:

0.2.0

setFirst

public void setFirst(A a)

Sets the first element from this quadruple.

Parameters:

a - The first element, may be null

Since:

0.2.0

setSecond

public void setSecond(B b)

Sets the second element from this quadruple.

Parameters:

b - The second element, may be null

Since:

0.2.0

setThird

public void setThird(C c)

Sets the third element from this quadruple.

Parameters:

c - The third element, may be null

Since:

0.2.0

setFourth

public void setFourth(D d)

Sets the fourth element from this quadruple.

Parameters:

d - The fourth element, may be null

Since:

0.2.0

toString

public java.lang.String toString()

Returns a String representation of this quadruple using the format (first, second, third, fourth).

Overrides:

toString in class java.lang.Object

Returns:

A String representation of this quadruple

Since:

0.2.0