Class LongLists.EmptyList

java.lang.Object
java.util.AbstractCollection<java.lang.Long>
All Implemented Interfaces:
LongCollection, LongIterable, LongList, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<java.util.List<? extends java.lang.Long>>, java.lang.Iterable<java.lang.Long>, java.util.Collection<java.lang.Long>, java.util.List<java.lang.Long>, java.util.RandomAccess
Enclosing class:
LongLists

public static class LongLists.EmptyList
extends LongCollections.EmptyCollection
implements LongList, java.util.RandomAccess, java.io.Serializable, java.lang.Cloneable
An immutable class representing an empty type-specific list.

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

See Also:
Serialized Form
  • Method Summary

    Modifier and Type Method Description
    void add​(int index, long k)
    Inserts the specified element at the specified position in this list (optional operation).
    void add​(int index, java.lang.Long k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    boolean add​(java.lang.Long k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    boolean addAll​(int i, LongCollection c)
    Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
    boolean addAll​(int i, LongList c)
    Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
    boolean addAll​(int i, java.util.Collection<? extends java.lang.Long> c)  
    boolean addAll​(LongList c)
    Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
    void addElements​(int index, long[] a)
    Add (hopefully quickly) elements to this type-specific list.
    void addElements​(int index, long[] a, int offset, int length)
    Add (hopefully quickly) elements to this type-specific list.
    java.lang.Object clone()  
    int compareTo​(java.util.List<? extends java.lang.Long> o)  
    boolean equals​(java.lang.Object o)  
    java.lang.Long get​(int index)
    Deprecated.
    Please use the corresponding type-specific method instead.
    void getElements​(int from, long[] a, int offset, int length)
    Copies (hopefully quickly) elements of this type-specific list into the given array.
    long getLong​(int i)
    Returns the element at the specified position in this list.
    int hashCode()  
    int indexOf​(long k)
    Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
    int indexOf​(java.lang.Object k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    LongListIterator iterator()
    Returns a type-specific iterator on the elements of this collection.
    int lastIndexOf​(long k)
    Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
    int lastIndexOf​(java.lang.Object k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    LongListIterator listIterator()
    Returns a type-specific list iterator on the list.
    LongListIterator listIterator​(int i)
    Returns a type-specific list iterator on the list starting at a given index.
    boolean rem​(long k)
    Removes a single instance of the specified element from this collection, if it is present (optional operation).
    java.lang.Long remove​(int k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    void removeElements​(int from, int to)
    Removes (hopefully quickly) elements of this type-specific list.
    long removeLong​(int i)
    Removes the element at the specified position in this list (optional operation).
    void replaceAll​(java.util.function.LongUnaryOperator operator)
    Replaces each element of this list with the result of applying the operator to that element.
    void replaceAll​(java.util.function.UnaryOperator<java.lang.Long> operator)
    Deprecated.
    long set​(int index, long k)
    Replaces the element at the specified position in this list with the specified element (optional operation).
    java.lang.Long set​(int index, java.lang.Long k)
    Deprecated.
    Please use the corresponding type-specific method instead.
    void setElements​(int index, long[] a)
    Set (hopefully quickly) elements to match the array given.
    void setElements​(int index, long[] a, int offset, int length)
    Set (hopefully quickly) elements to match the array given.
    void setElements​(long[] a)
    Set (hopefully quickly) elements to match the array given.
    void size​(int s)
    Sets the size of this list.
    void sort​(LongComparator comparator)
    Sort a list using a type-specific comparator.
    void sort​(java.util.Comparator<? super java.lang.Long> comparator)
    Deprecated.
    LongList 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.String toString()  
    void unstableSort​(LongComparator comparator)
    Sorts this list using a sort not assured to be stable.
    void unstableSort​(java.util.Comparator<? super java.lang.Long> comparator)
    Deprecated.

    Methods inherited from class it.unimi.dsi.fastutil.longs.AbstractLongCollection

    add, contains, forEach, remove, removeIf, toArray

    Methods inherited from class java.util.AbstractCollection

    isEmpty

    Methods inherited from class java.lang.Object

    getClass, notify, notifyAll, wait, wait, wait

    Methods inherited from interface java.util.Collection

    toArray

    Methods inherited from interface java.util.List

    addAll, clear, containsAll, isEmpty, removeAll, retainAll, size, toArray, toArray

    Methods inherited from interface it.unimi.dsi.fastutil.longs.LongIterable

    forEach, forEach, forEach

    Methods inherited from interface it.unimi.dsi.fastutil.longs.LongList

    add, contains, remove, replaceAll, spliterator
  • Method Details

    • getLong

      public long getLong​(int i)
      Description copied from interface: LongList
      Returns the element at the specified position in this list.
      Specified by:
      getLong in interface LongList
      See Also:
      List.get(int)
    • rem

      public boolean rem​(long k)
      Description copied from class: AbstractLongCollection
      Removes a single instance of the specified element from this collection, if it is present (optional operation).

      Note that this method should be called remove(), but the clash with the similarly named index-based method in the List interface forces us to use a distinguished name. For simplicity, the set interfaces reinstates remove().

      Specified by:
      rem in interface LongCollection
      Overrides:
      rem in class AbstractLongCollection
      See Also:
      Collection.remove(Object)
    • removeLong

      public long removeLong​(int i)
      Description copied from interface: LongList
      Removes the element at the specified position in this list (optional operation).
      Specified by:
      removeLong in interface LongList
      See Also:
      List.remove(int)
    • add

      public void add​(int index, long k)
      Description copied from interface: LongList
      Inserts the specified element at the specified position in this list (optional operation).
      Specified by:
      add in interface LongList
      See Also:
      List.add(int,Object)
    • set

      public long set​(int index, long k)
      Description copied from interface: LongList
      Replaces the element at the specified position in this list with the specified element (optional operation).
      Specified by:
      set in interface LongList
      See Also:
      List.set(int,Object)
    • indexOf

      public int indexOf​(long k)
      Description copied from interface: LongList
      Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
      Specified by:
      indexOf in interface LongList
      See Also:
      List.indexOf(Object)
    • lastIndexOf

      public int lastIndexOf​(long k)
      Description copied from interface: LongList
      Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
      Specified by:
      lastIndexOf in interface LongList
      See Also:
      List.lastIndexOf(Object)
    • addAll

      public boolean addAll​(int i, java.util.Collection<? extends java.lang.Long> c)
      Specified by:
      addAll in interface java.util.List<java.lang.Long>
    • replaceAll

      @Deprecated public void replaceAll​(java.util.function.UnaryOperator<java.lang.Long> operator)
      Deprecated.
      Description copied from interface: LongList
      Specified by:
      replaceAll in interface java.util.List<java.lang.Long>
      Specified by:
      replaceAll in interface LongList
    • replaceAll

      public void replaceAll​(java.util.function.LongUnaryOperator operator)
      Description copied from interface: LongList
      Replaces each element of this list with the result of applying the operator to that element.
      Specified by:
      replaceAll in interface LongList
      Parameters:
      operator - the operator to apply to each element.
      See Also:
      List.replaceAll(java.util.function.UnaryOperator<E>)
    • addAll

      public boolean addAll​(LongList c)
      Description copied from interface: LongList
      Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
      Specified by:
      addAll in interface LongList
      See Also:
      List.addAll(Collection)
    • addAll

      public boolean addAll​(int i, LongCollection c)
      Description copied from interface: LongList
      Inserts all of the elements in the specified type-specific collection into this type-specific list at the specified position (optional operation).
      Specified by:
      addAll in interface LongList
      See Also:
      List.addAll(int,java.util.Collection)
    • addAll

      public boolean addAll​(int i, LongList c)
      Description copied from interface: LongList
      Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).
      Specified by:
      addAll in interface LongList
      See Also:
      List.addAll(int,Collection)
    • add

      @Deprecated public void add​(int index, java.lang.Long k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      add in interface java.util.List<java.lang.Long>
      Specified by:
      add in interface LongList
    • get

      @Deprecated public java.lang.Long get​(int index)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      get in interface java.util.List<java.lang.Long>
      Specified by:
      get in interface LongList
    • add

      @Deprecated public boolean add​(java.lang.Long k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      add in interface java.util.Collection<java.lang.Long>
      Specified by:
      add in interface java.util.List<java.lang.Long>
      Specified by:
      add in interface LongCollection
      Specified by:
      add in interface LongList
      Overrides:
      add in class AbstractLongCollection
    • set

      @Deprecated public java.lang.Long set​(int index, java.lang.Long k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      set in interface java.util.List<java.lang.Long>
      Specified by:
      set in interface LongList
    • remove

      @Deprecated public java.lang.Long remove​(int k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      remove in interface java.util.List<java.lang.Long>
      Specified by:
      remove in interface LongList
    • indexOf

      @Deprecated public int indexOf​(java.lang.Object k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      indexOf in interface java.util.List<java.lang.Long>
      Specified by:
      indexOf in interface LongList
    • lastIndexOf

      @Deprecated public int lastIndexOf​(java.lang.Object k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      Specified by:
      lastIndexOf in interface java.util.List<java.lang.Long>
      Specified by:
      lastIndexOf in interface LongList
    • sort

      public void sort​(LongComparator comparator)
      Description copied from interface: LongList
      Sort a list using a type-specific comparator.

      Pass null to sort using natural ordering.

      Specified by:
      sort in interface LongList
      See Also:
      List.sort(java.util.Comparator)
    • unstableSort

      public void unstableSort​(LongComparator comparator)
      Description copied from interface: LongList
      Sorts this list using a sort not assured to be stable.

      Pass null to sort using natural ordering.

      This differs from List.sort(java.util.Comparator) in that the results are not assured to be stable, but may be a bit faster.

      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 LongList
    • sort

      @Deprecated public void sort​(java.util.Comparator<? super java.lang.Long> comparator)
      Deprecated.
      Description copied from interface: LongList
      Specified by:
      sort in interface java.util.List<java.lang.Long>
      Specified by:
      sort in interface LongList
    • unstableSort

      @Deprecated public void unstableSort​(java.util.Comparator<? super java.lang.Long> comparator)
      Deprecated.
      Description copied from interface: LongList
      Sorts this list using a sort not assured to be stable.
      Specified by:
      unstableSort in interface LongList
    • listIterator

      public LongListIterator listIterator()
      Description copied from interface: LongList
      Returns a type-specific list iterator on the list.
      Specified by:
      listIterator in interface java.util.List<java.lang.Long>
      Specified by:
      listIterator in interface LongList
      See Also:
      List.listIterator()
    • iterator

      public LongListIterator iterator()
      Description copied from interface: LongCollection
      Returns a type-specific iterator on the elements of this collection.
      Specified by:
      iterator in interface java.util.Collection<java.lang.Long>
      Specified by:
      iterator in interface java.lang.Iterable<java.lang.Long>
      Specified by:
      iterator in interface java.util.List<java.lang.Long>
      Specified by:
      iterator in interface LongCollection
      Specified by:
      iterator in interface LongIterable
      Specified by:
      iterator in interface LongList
      Overrides:
      iterator in class LongCollections.EmptyCollection
      Returns:
      a type-specific iterator on the elements of this collection.
      See Also:
      Iterable.iterator()
    • listIterator

      public LongListIterator listIterator​(int i)
      Description copied from interface: LongList
      Returns a type-specific list iterator on the list starting at a given index.
      Specified by:
      listIterator in interface java.util.List<java.lang.Long>
      Specified by:
      listIterator in interface LongList
      See Also:
      List.listIterator(int)
    • subList

      public LongList subList​(int from, int to)
      Description copied from interface: LongList
      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<java.lang.Long>
      Specified by:
      subList in interface LongList
      See Also:
      List.subList(int,int)
    • getElements

      public void getElements​(int from, long[] a, int offset, int length)
      Description copied from interface: LongList
      Copies (hopefully quickly) elements of this type-specific list into the given array.
      Specified by:
      getElements in interface LongList
      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 interface: LongList
      Removes (hopefully quickly) elements of this type-specific list.
      Specified by:
      removeElements in interface LongList
      Parameters:
      from - the start index (inclusive).
      to - the end index (exclusive).
    • addElements

      public void addElements​(int index, long[] a, int offset, int length)
      Description copied from interface: LongList
      Add (hopefully quickly) elements to this type-specific list.
      Specified by:
      addElements in interface LongList
      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.
    • addElements

      public void addElements​(int index, long[] a)
      Description copied from interface: LongList
      Add (hopefully quickly) elements to this type-specific list.
      Specified by:
      addElements in interface LongList
      Parameters:
      index - the index at which to add elements.
      a - the array containing the elements.
    • setElements

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

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

      public void setElements​(int index, long[] a, int offset, int length)
      Description copied from interface: LongList
      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 LongList
      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 void size​(int s)
      Description copied from interface: LongList
      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 LongList
      Parameters:
      s - the new size.
    • compareTo

      public int compareTo​(java.util.List<? extends java.lang.Long> o)
      Specified by:
      compareTo in interface java.lang.Comparable<java.util.List<? extends java.lang.Long>>
    • clone

      public java.lang.Object clone()
    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface java.util.Collection<java.lang.Long>
      Specified by:
      hashCode in interface java.util.List<java.lang.Long>
      Overrides:
      hashCode in class LongCollections.EmptyCollection
    • equals

      public boolean equals​(java.lang.Object o)
      Specified by:
      equals in interface java.util.Collection<java.lang.Long>
      Specified by:
      equals in interface java.util.List<java.lang.Long>
      Overrides:
      equals in class LongCollections.EmptyCollection
    • toString

      public java.lang.String toString()
      Overrides:
      toString in class AbstractLongCollection