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

Class CollectionUtils

  • public final class CollectionUtils
extends Object

    • Method Detail

      • 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)