Class ArraySet<T>

  • All Implemented Interfaces:
    java.lang.Iterable<T>, java.util.Collection<T>, java.util.Set<T>

    public class ArraySet<T>
    extends java.lang.Object
    implements java.util.Set<T>
    The thread safe set implementation, which uses array to hold its elements. This set could be used, for cases, which require minimum set modifications.
    Author:
    Alexey Stashok
    • Constructor Summary

      Constructors 
      Constructor Description
      ArraySet​(java.lang.Class<T> clazz)  
      ArraySet​(java.lang.Class<T> clazz, boolean replaceElementIfEquals)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean add​(ArraySet<T> source)
      Add all the elements from the source ArraySet.
      boolean add​(T element)
      boolean addAll​(java.util.Collection<? extends T> collection)
      boolean addAll​(T... elements)
      Add the element(s) to the set.
      void clear()
      Remove all the set elements.
      boolean contains​(java.lang.Object o)
      boolean containsAll​(java.util.Collection<?> collection)
      T[] getArray()
      Get the underlying array.
      T[] getArrayCopy()
      Get the copy of the underlying array.
      boolean isEmpty()
      java.util.Iterator<T> iterator()
      T[] obtainArrayCopy()
      Get the copy of the underlying array.
      boolean remove​(java.lang.Object o)
      boolean removeAll​(java.lang.Object... elements)
      Remove element(s) from the set.
      boolean removeAll​(java.util.Collection<?> collection)
      boolean retainAll​(java.util.Collection<?> collection)
      int size()
      java.lang.Object[] toArray()
      <K> K[] toArray​(K[] a)
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
      • Methods inherited from interface java.util.Collection

        parallelStream, removeIf, stream, toArray
      • Methods inherited from interface java.lang.Iterable

        forEach
      • Methods inherited from interface java.util.Set

        equals, hashCode, spliterator
    • Constructor Detail

      • ArraySet

        public ArraySet​(java.lang.Class<T> clazz)
      • ArraySet

        public ArraySet​(java.lang.Class<T> clazz,
                        boolean replaceElementIfEquals)
    • Method Detail

      • addAll

        public final boolean addAll​(T... elements)
        Add the element(s) to the set.
        Parameters:
        elements - the elements to add.
        Returns:
        true, if at least one element was added to the set and, as result, the size of the set was increased, or false, all element(s) was/were present in the set and, as the result, the set values were just reset.
      • addAll

        public boolean addAll​(java.util.Collection<? extends T> collection)
        Specified by:
        addAll in interface java.util.Collection<T>
        Specified by:
        addAll in interface java.util.Set<T>
      • add

        public final boolean add​(ArraySet<T> source)
        Add all the elements from the source ArraySet.
        Parameters:
        source - the elements to add.
        Returns:
        true, if at least one element was added to the set and, as result, the size of the set was increased, or false, all element(s) was/were present in the set and, as the result, the set values were just reset.
      • removeAll

        public final boolean removeAll​(java.lang.Object... elements)
        Remove element(s) from the set.
        Parameters:
        elements - the element(s) to remove.
        Returns:
        true, if at least one element was found and removed, or false otherwise.
      • getArray

        public final T[] getArray()
        Get the underlying array. Please note, it's not appropriate to modify the returned array's content. Please use add(Object) and remove(Object) instead.
        Returns:
        the array.
      • getArrayCopy

        public final T[] getArrayCopy()
        Get the copy of the underlying array. If the underlying array is null - then null will be returned.
        Returns:
        the copy of the underlying array. If the underlying array is null - then null will be returned.
      • obtainArrayCopy

        public final T[] obtainArrayCopy()
        Get the copy of the underlying array. If the underlying array is null - then empty array will be returned.
        Returns:
        the copy of the underlying array. If the underlying array is null - then empty array will be returned.
      • clear

        public void clear()
        Remove all the set elements.
        Specified by:
        clear in interface java.util.Collection<T>
        Specified by:
        clear in interface java.util.Set<T>
      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<T>
        Specified by:
        size in interface java.util.Set<T>
      • isEmpty

        public boolean isEmpty()
        Specified by:
        isEmpty in interface java.util.Collection<T>
        Specified by:
        isEmpty in interface java.util.Set<T>
      • add

        public boolean add​(T element)
        Specified by:
        add in interface java.util.Collection<T>
        Specified by:
        add in interface java.util.Set<T>
      • contains

        public boolean contains​(java.lang.Object o)
        Specified by:
        contains in interface java.util.Collection<T>
        Specified by:
        contains in interface java.util.Set<T>
      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection<T>
        Specified by:
        toArray in interface java.util.Set<T>
      • toArray

        public <K> K[] toArray​(K[] a)
        Specified by:
        toArray in interface java.util.Collection<T>
        Specified by:
        toArray in interface java.util.Set<T>
      • remove

        public boolean remove​(java.lang.Object o)
        Specified by:
        remove in interface java.util.Collection<T>
        Specified by:
        remove in interface java.util.Set<T>
      • containsAll

        public boolean containsAll​(java.util.Collection<?> collection)
        Specified by:
        containsAll in interface java.util.Collection<T>
        Specified by:
        containsAll in interface java.util.Set<T>
      • retainAll

        public boolean retainAll​(java.util.Collection<?> collection)
        Specified by:
        retainAll in interface java.util.Collection<T>
        Specified by:
        retainAll in interface java.util.Set<T>
      • removeAll

        public boolean removeAll​(java.util.Collection<?> collection)
        Specified by:
        removeAll in interface java.util.Collection<T>
        Specified by:
        removeAll in interface java.util.Set<T>
      • iterator

        public java.util.Iterator<T> iterator()
        Specified by:
        iterator in interface java.util.Collection<T>
        Specified by:
        iterator in interface java.lang.Iterable<T>
        Specified by:
        iterator in interface java.util.Set<T>