Package nz.org.riskscape.engine.util

Class Pair<L,R>

java.lang.Object

nz.org.riskscape.engine.util.Pair<L,R>

public final class Pair<L,R>
extends Object

General purpose pair type

Constructor Summary

Constructors

Constructor	Description
Pair(L left, R right)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
L	getLeft()
R	getRight()
int	hashCode()
static <L, R> Pair<L,R>	of(L l, R r)	Construct a new pair in a slightly nicer way that using the constructor e.g.
static <K, V> Collector<Pair<K,V>,?,Map<K,V>>	toMap()	Returns a collector that can be used to reduce a stream of Pairs to a map, throwing an exception on duplicates.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

Pair

public Pair(L left,
 R right)

Method Details

of

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

Construct a new pair in a slightly nicer way that using the constructor e.g. Pair.of(foo, bar) vs new Pair<>(foo, bar)

toMap

public static <K,
V> Collector<Pair<K,V>,?,Map<K,V>> toMap()

Returns a collector that can be used to reduce a stream of Pairs to a map, throwing an exception on duplicates.

Type Parameters:

K - the type of keys

V - the type of values

Returns:

a map that is the result of mapping every pair's left side to its right side

getLeft

public L getLeft()

getRight

public R getRight()

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