Class CollectionUtilities


  • public final class CollectionUtilities
    extends java.lang.Object
    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static <T> boolean all​(java.lang.Iterable<T> collection, Predicate<? super T> predicate)  
      static <T> boolean any​(java.lang.Iterable<T> collection)  
      static <T> boolean any​(java.lang.Iterable<T> collection, Predicate<? super T> predicate)  
      static <T> boolean contains​(java.lang.Iterable<? super T> collection, T node)  
      static <T> T first​(java.lang.Iterable<T> collection)  
      static <T> T first​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <T> T first​(java.util.List<T> list)  
      static <T> int firstIndexWhere​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <T> T firstOrDefault​(java.lang.Iterable<T> collection)  
      static <T> T firstOrDefault​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <T> T get​(java.lang.Iterable<T> collection, int index)  
      static <T> T get​(java.util.List<T> list, int index)  
      static <T> T getOrDefault​(java.lang.Iterable<T> collection, int index)  
      static <T> T getOrDefault​(java.util.List<T> collection, int index)  
      static int hashCode​(java.lang.Iterable<?> sequence)  
      static int hashCode​(java.util.List<?> sequence)  
      static <K,​V>
      Supplier<java.util.Map<K,​V>>
      hashMapFactory()  
      static <K,​V>
      Supplier<java.util.Map<K,​V>>
      identityMapFactory()  
      static <T> int indexOf​(java.lang.Iterable<? super T> collection, T item)  
      static <T> int indexOfByIdentity​(java.lang.Iterable<?> collection, T item)  
      static <T> int indexOfByIdentity​(java.util.List<?> collection, T item)  
      static <T> T last​(java.lang.Iterable<T> collection)  
      static <T> T last​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <T> T last​(java.util.List<T> list)  
      static <T> int lastIndexWhere​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <T> T lastOrDefault​(java.lang.Iterable<T> collection)  
      static <T> T lastOrDefault​(java.lang.Iterable<T> collection, Predicate<T> predicate)  
      static <K,​V>
      Supplier<java.util.Map<K,​V>>
      linekdHashMapFactory()  
      static <T> Supplier<java.util.List<T>> listFactory()  
      static <T,​R>
      java.lang.Iterable<R>
      ofType​(java.lang.Iterable<T> collection, java.lang.Class<R> type)  
      static <V,​K>
      void
      removeAll​(java.util.Map<K,​V> map, java.util.List<K> keys)  
      static <T,​R>
      java.lang.Iterable<R>
      select​(java.lang.Iterable<T> source, Selector<? super T,​? extends R> selector)  
      static <T> boolean sequenceDeepEquals​(java.lang.Iterable<? extends T> first, java.lang.Iterable<? extends T> second)  
      static <T> boolean sequenceDeepEquals​(java.util.List<? extends T> first, java.util.List<? extends T> second)  
      private static boolean sequenceDeepEqualsCore​(java.lang.Object first, java.lang.Object second)  
      static <T> boolean sequenceEquals​(java.lang.Iterable<? extends T> first, java.lang.Iterable<? extends T> second)  
      static <T> boolean sequenceEquals​(java.util.List<? extends T> first, java.util.List<? extends T> second)  
      static <T> Supplier<java.util.Set<T>> setFactory()  
      static <T> T single​(java.lang.Iterable<T> collection)  
      static <T> T single​(java.util.List<T> list)  
      static <T> T singleOrDefault​(java.lang.Iterable<T> collection)  
      static <T> T singleOrDefault​(java.util.List<T> list)  
      static <T> java.lang.Iterable<T> skip​(java.lang.Iterable<T> collection, int count)  
      static <T> java.lang.Iterable<T> skipWhile​(java.lang.Iterable<T> collection, Predicate<? super T> filter)  
      static <T> java.lang.Iterable<T> take​(java.lang.Iterable<T> collection, int count)  
      static <T> java.lang.Iterable<T> takeWhile​(java.lang.Iterable<T> collection, Predicate<? super T> filter)  
      static <E> E[] toArray​(java.lang.Class<E> elementType, java.lang.Iterable<? extends E> sequence)  
      static <T> java.util.List<T> toList​(java.lang.Iterable<? extends T> collection)  
      static <T> java.util.List<T> toList​(java.util.Enumeration<T> collection)  
      static <T> java.lang.Iterable<T> where​(java.lang.Iterable<T> source, Predicate<? super T> filter)  
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • IDENTITY_MAP_SUPPLIER

        private static final Supplier IDENTITY_MAP_SUPPLIER
      • HASH_MAP_SUPPLIER

        private static final Supplier HASH_MAP_SUPPLIER
      • LINKED_HASH_MAP_SUPPLIER

        private static final Supplier LINKED_HASH_MAP_SUPPLIER
      • LIST_SUPPLIER

        private static final Supplier LIST_SUPPLIER
      • SET_SUPPLIER

        private static final Supplier SET_SUPPLIER
    • Constructor Detail

      • CollectionUtilities

        public CollectionUtilities()
    • Method Detail

      • setFactory

        public static <T> Supplier<java.util.Set<T>> setFactory()
      • listFactory

        public static <T> Supplier<java.util.List<T>> listFactory()
      • hashMapFactory

        public static <K,​V> Supplier<java.util.Map<K,​V>> hashMapFactory()
      • linekdHashMapFactory

        public static <K,​V> Supplier<java.util.Map<K,​V>> linekdHashMapFactory()
      • identityMapFactory

        public static <K,​V> Supplier<java.util.Map<K,​V>> identityMapFactory()
      • indexOfByIdentity

        public static <T> int indexOfByIdentity​(java.util.List<?> collection,
                                                T item)
      • indexOfByIdentity

        public static <T> int indexOfByIdentity​(java.lang.Iterable<?> collection,
                                                T item)
      • indexOf

        public static <T> int indexOf​(java.lang.Iterable<? super T> collection,
                                      T item)
      • toList

        public static <T> java.util.List<T> toList​(java.util.Enumeration<T> collection)
      • toList

        public static <T> java.util.List<T> toList​(java.lang.Iterable<? extends T> collection)
      • getOrDefault

        public static <T> T getOrDefault​(java.lang.Iterable<T> collection,
                                         int index)
      • getOrDefault

        public static <T> T getOrDefault​(java.util.List<T> collection,
                                         int index)
      • get

        public static <T> T get​(java.lang.Iterable<T> collection,
                                int index)
      • get

        public static <T> T get​(java.util.List<T> list,
                                int index)
      • single

        public static <T> T single​(java.util.List<T> list)
      • singleOrDefault

        public static <T> T singleOrDefault​(java.util.List<T> list)
      • single

        public static <T> T single​(java.lang.Iterable<T> collection)
      • first

        public static <T> T first​(java.util.List<T> list)
      • first

        public static <T> T first​(java.lang.Iterable<T> collection)
      • singleOrDefault

        public static <T> T singleOrDefault​(java.lang.Iterable<T> collection)
      • ofType

        public static <T,​R> java.lang.Iterable<R> ofType​(java.lang.Iterable<T> collection,
                                                               java.lang.Class<R> type)
      • firstOrDefault

        public static <T> T firstOrDefault​(java.lang.Iterable<T> collection)
      • first

        public static <T> T first​(java.lang.Iterable<T> collection,
                                  Predicate<T> predicate)
      • firstOrDefault

        public static <T> T firstOrDefault​(java.lang.Iterable<T> collection,
                                           Predicate<T> predicate)
      • last

        public static <T> T last​(java.util.List<T> list)
      • last

        public static <T> T last​(java.lang.Iterable<T> collection)
      • lastOrDefault

        public static <T> T lastOrDefault​(java.lang.Iterable<T> collection)
      • firstIndexWhere

        public static <T> int firstIndexWhere​(java.lang.Iterable<T> collection,
                                              Predicate<T> predicate)
      • lastIndexWhere

        public static <T> int lastIndexWhere​(java.lang.Iterable<T> collection,
                                             Predicate<T> predicate)
      • last

        public static <T> T last​(java.lang.Iterable<T> collection,
                                 Predicate<T> predicate)
      • lastOrDefault

        public static <T> T lastOrDefault​(java.lang.Iterable<T> collection,
                                          Predicate<T> predicate)
      • contains

        public static <T> boolean contains​(java.lang.Iterable<? super T> collection,
                                           T node)
      • any

        public static <T> boolean any​(java.lang.Iterable<T> collection)
      • skip

        public static <T> java.lang.Iterable<T> skip​(java.lang.Iterable<T> collection,
                                                     int count)
      • skipWhile

        public static <T> java.lang.Iterable<T> skipWhile​(java.lang.Iterable<T> collection,
                                                          Predicate<? super T> filter)
      • take

        public static <T> java.lang.Iterable<T> take​(java.lang.Iterable<T> collection,
                                                     int count)
      • takeWhile

        public static <T> java.lang.Iterable<T> takeWhile​(java.lang.Iterable<T> collection,
                                                          Predicate<? super T> filter)
      • any

        public static <T> boolean any​(java.lang.Iterable<T> collection,
                                      Predicate<? super T> predicate)
      • all

        public static <T> boolean all​(java.lang.Iterable<T> collection,
                                      Predicate<? super T> predicate)
      • where

        public static <T> java.lang.Iterable<T> where​(java.lang.Iterable<T> source,
                                                      Predicate<? super T> filter)
      • select

        public static <T,​R> java.lang.Iterable<R> select​(java.lang.Iterable<T> source,
                                                               Selector<? super T,​? extends R> selector)
      • hashCode

        public static int hashCode​(java.util.List<?> sequence)
      • hashCode

        public static int hashCode​(java.lang.Iterable<?> sequence)
      • sequenceEquals

        public static <T> boolean sequenceEquals​(java.util.List<? extends T> first,
                                                 java.util.List<? extends T> second)
      • sequenceEquals

        public static <T> boolean sequenceEquals​(java.lang.Iterable<? extends T> first,
                                                 java.lang.Iterable<? extends T> second)
      • sequenceDeepEquals

        public static <T> boolean sequenceDeepEquals​(java.util.List<? extends T> first,
                                                     java.util.List<? extends T> second)
      • sequenceDeepEquals

        public static <T> boolean sequenceDeepEquals​(java.lang.Iterable<? extends T> first,
                                                     java.lang.Iterable<? extends T> second)
      • sequenceDeepEqualsCore

        private static boolean sequenceDeepEqualsCore​(java.lang.Object first,
                                                      java.lang.Object second)
      • toArray

        public static <E> E[] toArray​(java.lang.Class<E> elementType,
                                      java.lang.Iterable<? extends E> sequence)
      • removeAll

        public static <V,​K> void removeAll​(@NotNull
                                                 java.util.Map<K,​V> map,
                                                 @Nullable
                                                 java.util.List<K> keys)