Package ai.timefold.solver.core.impl.util

Class CollectionUtils

java.lang.Object

ai.timefold.solver.core.impl.util.CollectionUtils

public final class CollectionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	concat(List<T> left, List<T> right)
static <E> List<E>	copy(List<E> originalList, boolean reverse)	Creates a copy of the list, optionally in reverse order.
static <K, V> Map<K,V>	newHashMap(int size)
static <T> Set<T>	newHashSet(int size)
static <K, V> Map<K,V>	newIdentityHashMap(int size)
static <K, V> Map<K,V>	newLinkedHashMap(int size)
static <T> Set<T>	newLinkedHashSet(int size)
static <T> List<T>	toDistinctList(Collection<T> collection)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

copy

public static <E> List<E> copy(List<E> originalList,
 boolean reverse)

Creates a copy of the list, optionally in reverse order.

Type Parameters:

E - the type of elements in the list

Parameters:

originalList - the list to copy, preferably ArrayList

reverse - true if the resulting list should have its order reversed

Returns:

mutable list, never null

concat

public static <T> List<T> concat(List<T> left,
 List<T> right)

toDistinctList

public static <T> List<T> toDistinctList(Collection<T> collection)

newHashSet

public static <T> Set<T> newHashSet(int size)

newLinkedHashSet

public static <T> Set<T> newLinkedHashSet(int size)

newHashMap

public static <K,
V> Map<K,V> newHashMap(int size)

newIdentityHashMap

public static <K,
V> Map<K,V> newIdentityHashMap(int size)

newLinkedHashMap

public static <K,
V> Map<K,V> newLinkedHashMap(int size)