com.landawn.abacus.util

Class Pair<L,R>

java.lang.Object

com.landawn.abacus.util.Pair<L,R>

Type Parameters:

L -

R -

All Implemented Interfaces:

java.util.Map.Entry<L,R>

public final class Pair<L,R>
extends java.lang.Object
implements java.util.Map.Entry<L,R>

Since:

0.8

Author:

Haiyang Li

Field Summary

Fields

Modifier and Type	Field and Description
L	left
R	right

Constructor Summary

Constructors

Constructor and Description
Pair()

Method Summary

Modifier and Type	Method and Description
void	accept(BiConsumer<? super L,? super R> action)
void	accept(Consumer<Pair<L,R>> action)
Pair<L,R>	copy()
boolean	equals(java.lang.Object obj)
Optional<Pair<L,R>>	filter(BiPredicate<? super L,? super R> predicate)
Optional<Pair<L,R>>	filter(Predicate<Pair<L,R>> predicate)
void	forEach(Consumer<?> comsumer)
static <T> Pair<T,T>	from(java.util.Collection<? extends T> c)
static <T> Pair<T,T>	from(T[] a)
L	getAndSetLeft(L newLeft)
R	getAndSetRight(R newRight)
L	getKey()
L	getLeft()
R	getRight()
R	getValue()
int	hashCode()
L	left()
<U> U	map(BiFunction<? super L,? super R,U> mapper)
<U> U	map(Function<Pair<L,R>,U> mapper)
static <L,R> Pair<L,R>	of(L l, R r)
Pair<R,L>	reversed()
R	right()
Pair<L,R>	set(L left, R right)
L	setAndGetLeft(L newLeft)
R	setAndGetRight(R newRight)
boolean	setIf(L newLeft, R newRight, TriPredicate<? super Pair<L,R>,? super L,? super R> predicate) Set to the specified newLeft and newRight and returns true if predicate returns true.
Pair<L,R>	setLeft(L left)
boolean	setLeftIf(L newLeft, BiPredicate<? super Pair<L,R>,? super L> predicate) Set to the specified newLeft and returns true if predicate returns true.
Pair<L,R>	setRight(R right)
boolean	setRightIf(R newRight, BiPredicate<? super Pair<L,R>,? super R> predicate) Set to the specified newRight and returns true if predicate returns true.
R	setValue(R value)
Stream<Pair<L,R>>	stream()
java.lang.Object[]	toArray()
<A> A[]	toArray(A[] a)
java.lang.String	toString()
Tuple.Tuple2<L,R>	toTuple()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map.Entry

comparingByKey, comparingByKey, comparingByValue, comparingByValue

Field Detail

left

public volatile L left

right

public volatile R right

Constructor Detail

Pair

public Pair()

Method Detail

of

public static <L,R> Pair<L,R> of(L l,
                                 R r)

from

public static <T> Pair<T,T> from(T[] a)

from

public static <T> Pair<T,T> from(java.util.Collection<? extends T> c)

left

public L left()

right

public R right()

getLeft

public L getLeft()

setLeft

public Pair<L,R> setLeft(L left)

getRight

public R getRight()

setRight

public Pair<L,R> setRight(R right)

set

public Pair<L,R> set(L left,
                     R right)

getAndSetLeft

public L getAndSetLeft(L newLeft)

setAndGetLeft

public L setAndGetLeft(L newLeft)

getAndSetRight

public R getAndSetRight(R newRight)

setAndGetRight

public R setAndGetRight(R newRight)

setLeftIf

public boolean setLeftIf(L newLeft,
                         BiPredicate<? super Pair<L,R>,? super L> predicate)

Set to the specified newLeft and returns true if predicate returns true. Otherwise returns false without setting the value to new value.

Parameters:

newLeft -

predicate - - the first parameter is current pair, the second parameter is the newLeft

Returns:

setRightIf

public boolean setRightIf(R newRight,
                          BiPredicate<? super Pair<L,R>,? super R> predicate)

Set to the specified newRight and returns true if predicate returns true. Otherwise returns false without setting the value to new value.

Parameters:

newRight -

predicate - - the first parameter is current pair, the second parameter is the newRight

Returns:

setIf

public boolean setIf(L newLeft,
                     R newRight,
                     TriPredicate<? super Pair<L,R>,? super L,? super R> predicate)

Set to the specified newLeft and newRight and returns true if predicate returns true. Otherwise returns false without setting the left/right to new values.

Parameters:

newLeft -

newRight -

predicate - - the first parameter is current pair, the second parameter is the newLeft, the third parameter is the newRight.

Returns:

getKey

public L getKey()

Specified by:

getKey in interface java.util.Map.Entry<L,R>

getValue

public R getValue()

Specified by:

getValue in interface java.util.Map.Entry<L,R>

setValue

public R setValue(R value)

Specified by:

setValue in interface java.util.Map.Entry<L,R>

reversed

public Pair<R,L> reversed()

Returns:

a new instance of Pair<R, L>.

copy

public Pair<L,R> copy()

toArray

public java.lang.Object[] toArray()

toArray

public <A> A[] toArray(A[] a)

forEach

public void forEach(Consumer<?> comsumer)

accept

public void accept(BiConsumer<? super L,? super R> action)

accept

public void accept(Consumer<Pair<L,R>> action)

map

public <U> U map(BiFunction<? super L,? super R,U> mapper)

map

public <U> U map(Function<Pair<L,R>,U> mapper)

filter

public Optional<Pair<L,R>> filter(BiPredicate<? super L,? super R> predicate)

filter

public Optional<Pair<L,R>> filter(Predicate<Pair<L,R>> predicate)

stream

public Stream<Pair<L,R>> stream()

toTuple

public Tuple.Tuple2<L,R> toTuple()

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Map.Entry<L,R>

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Specified by:

equals in interface java.util.Map.Entry<L,R>

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object