Package it.unimi.dsi.fastutil.objects

Class ObjectLists.Singleton<K>

  • All Implemented Interfaces:
    ObjectCollection<K>, ObjectIterable<K>, ObjectList<K>, Stack<K>, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<java.util.List<? extends K>>, java.lang.Iterable<K>, java.util.Collection<K>, java.util.List<K>, java.util.RandomAccess
    Enclosing class:
    ObjectLists
    public static class ObjectLists.Singleton<K>
extends AbstractObjectList<K>
implements java.util.RandomAccess, java.io.Serializable, java.lang.Cloneable
    An immutable class representing a type-specific singleton list.

    This class may be useful to implement your own in case you subclass a type-specific list.

    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean addAll​(int i, java.util.Collection<? extends K> c)
      Adds all of the elements in the specified collection to this list (optional operation).
      boolean addAll​(java.util.Collection<? extends K> c)
      void addElements​(int index, K[] a)
      Add (hopefully quickly) elements to this type-specific list.
      void addElements​(int index, K[] a, int offset, int length)
      Add (hopefully quickly) elements to this type-specific list.
      void clear()
      java.lang.Object clone()  
      boolean contains​(java.lang.Object k)
      Returns true if this list contains the specified element.
      void forEach​(java.util.function.Consumer<? super K> action)
      K get​(int i)  
      void getElements​(int from, java.lang.Object[] a, int offset, int length)
      Copies (hopefully quickly) elements of this type-specific list into the given array.
      int indexOf​(java.lang.Object k)  
      ObjectListIterator<K> iterator()
      Returns a type-specific iterator on the elements of this collection.
      ObjectListIterator<K> listIterator()
      Returns a type-specific list iterator on the list.
      ObjectListIterator<K> listIterator​(int i)
      Returns a type-specific list iterator on the list starting at a given index.
      K remove​(int i)
      boolean remove​(java.lang.Object k)  
      boolean removeAll​(java.util.Collection<?> c)  
      void removeElements​(int from, int to)
      Removes (hopefully quickly) elements of this type-specific list.
      boolean removeIf​(java.util.function.Predicate<? super K> filter)  
      void replaceAll​(java.util.function.UnaryOperator<K> operator)  
      boolean retainAll​(java.util.Collection<?> c)  
      void setElements​(int index, K[] a)
      Set (hopefully quickly) elements to match the array given.
      void setElements​(int index, K[] a, int offset, int length)
      Set (hopefully quickly) elements to match the array given.
      void setElements​(K[] a)
      Set (hopefully quickly) elements to match the array given.
      int size()  
      void size​(int size)
      Sets the size of this list.
      void sort​(java.util.Comparator<? super K> comparator)
      Sorts this list using a sort assured to be stable.
      ObjectSpliterator<K> spliterator()
      Returns a type-specific spliterator on the elements of this list.
      ObjectList<K> subList​(int from, int to)
      Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.
      java.lang.Object[] toArray()  
      void unstableSort​(java.util.Comparator<? super K> comparator)
      Sorts this list using a sort not assured to be stable.

      • Methods inherited from class java.util.AbstractCollection

        containsAll, isEmpty

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Collection

        parallelStream, stream, toArray

      • Methods inherited from interface java.util.List

        containsAll, isEmpty

      • Methods inherited from interface it.unimi.dsi.fastutil.Stack

        isEmpty

    • Method Detail

      • get

        public K get​(int i)
        Specified by:
        get in interface java.util.List<K>

      • remove

        public boolean remove​(java.lang.Object k)
        Specified by:
        remove in interface java.util.Collection<K>
        Specified by:
        remove in interface java.util.List<K>
        Overrides:
        remove in class java.util.AbstractCollection<K>

      • contains

        public boolean contains​(java.lang.Object k)
        Description copied from class: AbstractObjectList
        Returns true if this list contains the specified element.
        Specified by:
        contains in interface java.util.Collection<K>
        Specified by:
        contains in interface java.util.List<K>
        Overrides:
        contains in class AbstractObjectList<K>
        See Also:
        List.contains(Object)

      • indexOf

        public int indexOf​(java.lang.Object k)
        Specified by:
        indexOf in interface java.util.List<K>
        Overrides:
        indexOf in class AbstractObjectList<K>

      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection<K>
        Specified by:
        toArray in interface java.util.List<K>
        Overrides:
        toArray in class AbstractObjectList<K>

      • spliterator

        public ObjectSpliterator<K> spliterator()
        Description copied from interface: ObjectList
        Returns a type-specific spliterator on the elements of this list.

        List spliterators must report at least Spliterator.SIZED and Spliterator.ORDERED.

        See List.spliterator() for more documentation on the requirements of the returned spliterator.

        Specified by:
        spliterator in interface java.util.Collection<K>
        Specified by:
        spliterator in interface java.lang.Iterable<K>
        Specified by:
        spliterator in interface java.util.List<K>
        Specified by:
        spliterator in interface ObjectCollection<K>
        Specified by:
        spliterator in interface ObjectIterable<K>
        Specified by:
        spliterator in interface ObjectList<K>
        Returns:
        a type-specific spliterator on the elements of this collection.

      • subList

        public ObjectList<K> subList​(int from,
                             int to)
        Description copied from interface: ObjectList
        Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.
        Specified by:
        subList in interface java.util.List<K>
        Specified by:
        subList in interface ObjectList<K>
        Overrides:
        subList in class AbstractObjectList<K>
        See Also:
        List.subList(int,int)

      • forEach

        public void forEach​(java.util.function.Consumer<? super K> action)
        Description copied from class: AbstractObjectList
        Specified by:
        forEach in interface java.lang.Iterable<K>
        Overrides:
        forEach in class AbstractObjectList<K>

      • addAll

        public boolean addAll​(int i,
                      java.util.Collection<? extends K> c)
        Description copied from class: AbstractObjectList
        Adds all of the elements in the specified collection to this list (optional operation).
        Specified by:
        addAll in interface java.util.List<K>
        Overrides:
        addAll in class AbstractObjectList<K>

      • addAll

        public boolean addAll​(java.util.Collection<? extends K> c)
        Description copied from class: AbstractObjectList
        Specified by:
        addAll in interface java.util.Collection<K>
        Specified by:
        addAll in interface java.util.List<K>
        Overrides:
        addAll in class AbstractObjectList<K>

      • removeAll

        public boolean removeAll​(java.util.Collection<?> c)
        Specified by:
        removeAll in interface java.util.Collection<K>
        Specified by:
        removeAll in interface java.util.List<K>
        Overrides:
        removeAll in class java.util.AbstractCollection<K>

      • retainAll

        public boolean retainAll​(java.util.Collection<?> c)
        Specified by:
        retainAll in interface java.util.Collection<K>
        Specified by:
        retainAll in interface java.util.List<K>
        Overrides:
        retainAll in class java.util.AbstractCollection<K>

      • removeIf

        public boolean removeIf​(java.util.function.Predicate<? super K> filter)
        Specified by:
        removeIf in interface java.util.Collection<K>

      • replaceAll

        public void replaceAll​(java.util.function.UnaryOperator<K> operator)
        Specified by:
        replaceAll in interface java.util.List<K>

      • sort

        public void sort​(java.util.Comparator<? super K> comparator)
        Description copied from interface: ObjectList
        Sorts this list using a sort assured to be stable.

        Pass null to sort using natural ordering.

        Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.

        Specified by:
        sort in interface java.util.List<K>
        Specified by:
        sort in interface ObjectList<K>

      • unstableSort

        public void unstableSort​(java.util.Comparator<? super K> comparator)
        Description copied from interface: ObjectList
        Sorts this list using a sort not assured to be stable. This differs from List.sort(java.util.Comparator) in that the results are not assured to be stable, but may be a bit faster.

        Pass null to sort using natural ordering.

        Unless a subclass specifies otherwise, the results of the method if the list is concurrently modified during the sort are unspecified.

        Specified by:
        unstableSort in interface ObjectList<K>

      • getElements

        public void getElements​(int from,
                        java.lang.Object[] a,
                        int offset,
                        int length)
        Description copied from class: AbstractObjectList
        Copies (hopefully quickly) elements of this type-specific list into the given array.

        This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

        Specified by:
        getElements in interface ObjectList<K>
        Overrides:
        getElements in class AbstractObjectList<K>
        Parameters:
        from - the start index (inclusive).
        a - the destination array.
        offset - the offset into the destination array where to store the first element copied.
        length - the number of elements to be copied.

      • removeElements

        public void removeElements​(int from,
                           int to)
        Description copied from class: AbstractObjectList
        Removes (hopefully quickly) elements of this type-specific list.

        This is a trivial iterator-based based implementation. It is expected that implementations will override this method with a more optimized version.

        Specified by:
        removeElements in interface ObjectList<K>
        Overrides:
        removeElements in class AbstractObjectList<K>
        Parameters:
        from - the start index (inclusive).
        to - the end index (exclusive).

      • addElements

        public void addElements​(int index,
                        K[] a)
        Description copied from class: AbstractObjectList
        Add (hopefully quickly) elements to this type-specific list.
        Specified by:
        addElements in interface ObjectList<K>
        Overrides:
        addElements in class AbstractObjectList<K>
        Parameters:
        index - the index at which to add elements.
        a - the array containing the elements.

      • addElements

        public void addElements​(int index,
                        K[] a,
                        int offset,
                        int length)
        Description copied from class: AbstractObjectList
        Add (hopefully quickly) elements to this type-specific list.

        This is a trivial iterator-based implementation. It is expected that implementations will override this method with a more optimized version.

        Specified by:
        addElements in interface ObjectList<K>
        Overrides:
        addElements in class AbstractObjectList<K>
        Parameters:
        index - the index at which to add elements.
        a - the array containing the elements.
        offset - the offset of the first element to add.
        length - the number of elements to add.

      • setElements

        public void setElements​(K[] a)
        Description copied from interface: ObjectList
        Set (hopefully quickly) elements to match the array given.
        Specified by:
        setElements in interface ObjectList<K>
        Parameters:
        a - the array containing the elements.

      • setElements

        public void setElements​(int index,
                        K[] a)
        Description copied from interface: ObjectList
        Set (hopefully quickly) elements to match the array given.
        Specified by:
        setElements in interface ObjectList<K>
        Parameters:
        index - the index at which to start setting elements.
        a - the array containing the elements.

      • setElements

        public void setElements​(int index,
                        K[] a,
                        int offset,
                        int length)
        Description copied from interface: ObjectList
        Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by 
         ListIterator iter = listIterator(index);
 int i = 0;
 while (i < length) {
   iter.next();
   iter.set(a[offset + i++]);
 }
        However, the exact implementation may be more efficient, taking into account whether random access is faster or not, or at the discretion of subclasses, abuse internals.
        Specified by:
        setElements in interface ObjectList<K>
        Overrides:
        setElements in class AbstractObjectList<K>
        Parameters:
        index - the index at which to start setting elements.
        a - the array containing the elements
        offset - the offset of the first element to add.
        length - the number of elements to add.

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<K>
        Specified by:
        size in interface java.util.List<K>
        Specified by:
        size in class java.util.AbstractCollection<K>

      • size

        public void size​(int size)
        Description copied from interface: ObjectList
        Sets the size of this list.

        If the specified size is smaller than the current size, the last elements are discarded. Otherwise, they are filled with 0/null/false.

        Specified by:
        size in interface ObjectList<K>
        Overrides:
        size in class AbstractObjectList<K>
        Parameters:
        size - the new size.

      • clear

        public void clear()
        Description copied from class: AbstractObjectList
        Specified by:
        clear in interface java.util.Collection<K>
        Specified by:
        clear in interface java.util.List<K>
        Overrides:
        clear in class AbstractObjectList<K>

      • clone

        public java.lang.Object clone()