oracle.javatools.util

Class Pair<A,B>

java.lang.Object

oracle.javatools.util.Pair<A,B>

All Implemented Interfaces:

java.lang.Comparable<Pair<A,?>>

Direct Known Subclasses:

Pair, UpgradableStore.Pair

public class Pair<A,B>
extends java.lang.Object
implements java.lang.Comparable<Pair<A,?>>

Encapsulates a Pair of objects.
Note: The toString() method returns the toString() of the first object. This allows for example to easily attach data to a JList object by passing a Pair("Label", myObject).

Field Summary

Fields

Modifier and Type	Field and Description
A	first
B	second

Constructor Summary

Constructors

Constructor and Description
Pair() Default constructor
Pair(A firstObj, B secondObj) Default constructor
Pair(Pair<A,B> pair) Cloning Constructor

Method Summary

Modifier and Type	Method and Description
int	compareTo(Pair<A,?> o) implements Comparable on the first element only.
boolean	equals(java.lang.Object obj)
A	getFirst()
B	getSecond()
int	hashCode()
void	setFirst(A firstObj)
void	setSecond(B secondObj)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

first

public A first

second

public B second

Constructor Detail

Pair

public Pair()

Default constructor

Pair

public Pair(A firstObj,
            B secondObj)

Default constructor

Pair

public Pair(Pair<A,B> pair)

Cloning Constructor

Method Detail

setFirst

public void setFirst(A firstObj)

getFirst

public A getFirst()

setSecond

public void setSecond(B secondObj)

getSecond

public B getSecond()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

the toString of the 'first' object or the String "<null>" if the first object is null.

compareTo

public int compareTo(Pair<A,?> o)

implements Comparable on the first element only.

Specified by:

compareTo in interface java.lang.Comparable<Pair<A,?>>