Package org.eclipse.epsilon.common.util

Class CollectionUtil

  • public class CollectionUtil
extends java.lang.Object

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void addCapacityIfArrayList​(java.util.Collection<?> collection, int additionalCapacity)  
      static <T> java.util.Collection<T> asCollection​(T o)  
      static java.util.Iterator<?> asIterator​(java.lang.Object o)  
      static <T> java.util.List<T> asList​(java.util.Collection<T> c)  
      static <T> java.util.List<T> asList​(T o)  
      static <T> java.util.Set<T> asSet​(T o)  
      static <T> java.util.ArrayList<T> composeArrayListFrom​(java.util.Collection<T>... collections)  
      static <T> java.util.List<T> createDefaultList()  
      static <T> java.util.Set<T> createDefaultSet()  
      static boolean equalsIgnoreOrder​(java.util.Collection<?> c1, java.util.Collection<?> c2)  
      static <T> java.util.Collection<T> flatten​(java.util.Collection<T> original)  
      static <T> java.lang.Object getFirst​(java.lang.Iterable<T> c)  
      static <T> java.util.List<T> iterate​(java.lang.Iterable<T> iterable)  
      static java.lang.String join​(java.lang.Iterable<?> collection, java.lang.String delimiter)  
      static java.lang.String join​(java.lang.Iterable<?> collection, java.lang.String delimiter, CollectionUtil.ElementPrinter printer)  
      static <T,​C extends java.util.Collection<T>>
      C      		 mergeCollectionsUnique​(java.util.Collection<T> c1, java.util.Collection<T> c2, java.util.function.Supplier<? extends C> newCollection)  
      static <E> E[] toArray​(java.util.Collection<E> c, java.lang.Class<?> arrayType)  

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • asIterator

        public static java.util.Iterator<?> asIterator​(java.lang.Object o)
        Parameters:
        o -
        Returns:
        Since:
        1.6

      • equalsIgnoreOrder

        public static boolean equalsIgnoreOrder​(java.util.Collection<?> c1,
                                        java.util.Collection<?> c2)
        Parameters:
        c1 -
        c2 -
        Returns:
        Since:
        1.6

      • composeArrayListFrom

        @SafeVarargs
public static <T> java.util.ArrayList<T> composeArrayListFrom​(java.util.Collection<T>... collections)
        Parameters:
        collections -
        Returns:
        Since:
        1.6

      • mergeCollectionsUnique

        public static <T,​C extends java.util.Collection<T>> C mergeCollectionsUnique​(java.util.Collection<T> c1,
                                                                                   java.util.Collection<T> c2,
                                                                                   java.util.function.Supplier<? extends C> newCollection)
        Parameters:
        c1 -
        c2 -
        newCollection -
        Returns:
        Since:
        1.6

      • addCapacityIfArrayList

        public static void addCapacityIfArrayList​(java.util.Collection<?> collection,
                                          int additionalCapacity)
        Parameters:
        collection -
        additionalCapacity -
        Since:
        1.6

      • asCollection

        public static <T> java.util.Collection<T> asCollection​(T o)

      • asList

        public static <T> java.util.List<T> asList​(T o)

      • asSet

        public static <T> java.util.Set<T> asSet​(T o)

      • flatten

        public static <T> java.util.Collection<T> flatten​(java.util.Collection<T> original)

      • createDefaultSet

        public static <T> java.util.Set<T> createDefaultSet()

      • createDefaultList

        public static <T> java.util.List<T> createDefaultList()

      • asList

        public static <T> java.util.List<T> asList​(java.util.Collection<T> c)

      • getFirst

        public static <T> java.lang.Object getFirst​(java.lang.Iterable<T> c)

      • iterate

        public static <T> java.util.List<T> iterate​(java.lang.Iterable<T> iterable)

      • toArray

        public static <E> E[] toArray​(java.util.Collection<E> c,
                              java.lang.Class<?> arrayType)

      • join

        public static java.lang.String join​(java.lang.Iterable<?> collection,
                                    java.lang.String delimiter)

      • join

        public static java.lang.String join​(java.lang.Iterable<?> collection,
                                    java.lang.String delimiter,
                                    CollectionUtil.ElementPrinter printer)