com.phloc.commons.collections.pair

Class Pair<DATA1TYPE,DATA2TYPE>

java.lang.Object

com.phloc.commons.collections.pair.Pair<DATA1TYPE,DATA2TYPE>

Type Parameters:

DATA1TYPE - First type.

DATA2TYPE - Second type.

All Implemented Interfaces:

IPair<DATA1TYPE,DATA2TYPE>, IReadonlyPair<DATA1TYPE,DATA2TYPE>

@NotThreadSafe
public final class Pair<DATA1TYPE,DATA2TYPE>
extends Object
implements IPair<DATA1TYPE,DATA2TYPE>

A generic pair class. It wraps two objects of arbitrary type. If you just want to wrap a single object, look at class Wrapper.

Author:

Philip Helger

Constructor Summary

Constructors

Constructor and Description
Pair()
Pair(IReadonlyPair<? extends DATA1TYPE,? extends DATA2TYPE> rhs)
Pair(T2 aFirst, U2 aSecond)

Method Summary

Methods

Modifier and Type	Method and Description
static <T,U> IPair<T,U>	create(T aFirst, U aSecond)
boolean	equals(Object o)
DATA1TYPE	getFirst()
DATA2TYPE	getSecond()
int	hashCode()
EChange	setFirst(DATA1TYPE aFirst) Set the first value.
EChange	setSecond(DATA2TYPE aSecond) Set the second value.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Pair

public Pair()

Pair

public Pair(@Nullable
    T2 aFirst,
    @Nullable
    U2 aSecond)

Pair

public Pair(@Nonnull
    IReadonlyPair<? extends DATA1TYPE,? extends DATA2TYPE> rhs)

Method Detail

getFirst

@Nullable
public DATA1TYPE getFirst()

Specified by:

getFirst in interface IReadonlyPair<DATA1TYPE,DATA2TYPE>

Returns:

The first element. May be null.

setFirst

@Nonnull
public EChange setFirst(@Nullable
                       DATA1TYPE aFirst)

Description copied from interface: IPair

Set the first value.

Specified by:

setFirst in interface IPair<DATA1TYPE,DATA2TYPE>

Parameters:

aFirst - The first value. May be null.

Returns:

EChange

getSecond

@Nullable
public DATA2TYPE getSecond()

Specified by:

getSecond in interface IReadonlyPair<DATA1TYPE,DATA2TYPE>

Returns:

The second element. May be null.

setSecond

@Nonnull
public EChange setSecond(@Nullable
                        DATA2TYPE aSecond)

Description copied from interface: IPair

Set the second value.

Specified by:

setSecond in interface IPair<DATA1TYPE,DATA2TYPE>

Parameters:

aSecond - The second value. May be null.

Returns:

EChange

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

create

@Nonnull
public static <T,U> IPair<T,U> create(@Nullable
                              T aFirst,
                              @Nullable
                              U aSecond)