Package it.unimi.dsi.fastutil.doubles

Class DoubleLists.EmptyList

  • All Implemented Interfaces:
    DoubleCollection, DoubleIterable, DoubleList, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<java.util.List<? extends java.lang.Double>>, java.lang.Iterable<java.lang.Double>, java.util.Collection<java.lang.Double>, java.util.List<java.lang.Double>, java.util.RandomAccess
    Enclosing class:
    DoubleLists
    public static class DoubleLists.EmptyList
extends DoubleCollections.EmptyCollection
implements DoubleList, 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

      All Methods Instance Methods Concrete Methods Deprecated Methods 
      Modifier and Type Method Description
      void add​(int index, double k)
      Inserts the specified element at the specified position in this list (optional operation).
      void add​(int index, java.lang.Double k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      boolean add​(java.lang.Double k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      boolean addAll​(int i, DoubleCollection 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, DoubleList 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.Double> c)  
      boolean addAll​(DoubleList 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, double[] a)
      Add (hopefully quickly) elements to this type-specific list.
      void addElements​(int index, double[] 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.Double> o)  
      boolean equals​(java.lang.Object o)  
      java.lang.Double get​(int index)
      Deprecated.
      Please use the corresponding type-specific method instead.
      double getDouble​(int i)
      Returns the element at the specified position in this list.
      void getElements​(int from, double[] a, int offset, int length)
      Copies (hopefully quickly) elements of this type-specific list into the given array.
      int hashCode()  
      int indexOf​(double 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.
      DoubleListIterator iterator()
      Returns a type-specific iterator on the elements of this collection.
      int lastIndexOf​(double 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.
      DoubleListIterator listIterator()
      Returns a type-specific list iterator on the list.
      DoubleListIterator listIterator​(int i)
      Returns a type-specific list iterator on the list starting at a given index.
      boolean rem​(double k)
      Removes a single instance of the specified element from this collection, if it is present (optional operation).
      java.lang.Double remove​(int k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      double removeDouble​(int i)
      Removes the element at the specified position in this list (optional operation).
      void removeElements​(int from, int to)
      Removes (hopefully quickly) elements of this type-specific list.
      double set​(int index, double k)
      Replaces the element at the specified position in this list with the specified element (optional operation).
      java.lang.Double set​(int index, java.lang.Double k)
      Deprecated.
      Please use the corresponding type-specific method instead.
      void size​(int s)
      Sets the size of this list.
      DoubleList 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()  

      • Methods inherited from class java.util.AbstractCollection

        containsAll, isEmpty, toArray

      • 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

        addAll, clear, containsAll, isEmpty, removeAll, replaceAll, retainAll, size, sort, spliterator, toArray, toArray

    • Method Detail

      • getDouble

        public double getDouble​(int i)
        Description copied from interface: DoubleList
        Returns the element at the specified position in this list.
        Specified by:
        getDouble in interface DoubleList
        See Also:
        List.get(int)

      • rem

        public boolean rem​(double k)
        Description copied from class: AbstractDoubleCollection
        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().

        This implementation iterates over the elements in the collection, looking for the specified element and tries to remove it.

        Specified by:
        rem in interface DoubleCollection
        Overrides:
        rem in class AbstractDoubleCollection
        See Also:
        Collection.remove(Object)

      • removeDouble

        public double removeDouble​(int i)
        Description copied from interface: DoubleList
        Removes the element at the specified position in this list (optional operation).
        Specified by:
        removeDouble in interface DoubleList
        See Also:
        List.remove(int)

      • add

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

      • set

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

      • indexOf

        public int indexOf​(double k)
        Description copied from interface: DoubleList
        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 DoubleList
        See Also:
        List.indexOf(Object)

      • lastIndexOf

        public int lastIndexOf​(double k)
        Description copied from interface: DoubleList
        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 DoubleList
        See Also:
        List.lastIndexOf(Object)

      • addAll

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

      • addAll

        public boolean addAll​(DoubleList c)
        Description copied from interface: DoubleList
        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 DoubleList
        See Also:
        List.add(int,Object)

      • addAll

        public boolean addAll​(int i,
                      DoubleCollection c)
        Description copied from interface: DoubleList
        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 DoubleList
        See Also:
        List.addAll(int,java.util.Collection)

      • addAll

        public boolean addAll​(int i,
                      DoubleList c)
        Description copied from interface: DoubleList
        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 DoubleList
        See Also:
        List.add(int,Object)

      • add

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

      • get

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

      • add

        @Deprecated
public boolean add​(java.lang.Double k)
        Deprecated.
        Please use the corresponding type-specific method instead.
        Specified by:
        add in interface java.util.Collection<java.lang.Double>
        Specified by:
        add in interface DoubleCollection
        Specified by:
        add in interface DoubleList
        Specified by:
        add in interface java.util.List<java.lang.Double>
        Overrides:
        add in class AbstractDoubleCollection

      • set

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

      • remove

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

      • indexOf

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

      • lastIndexOf

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

      • listIterator

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

      • iterator

        public DoubleListIterator iterator()
        Description copied from interface: DoubleCollection
        Returns a type-specific iterator on the elements of this collection.

        Note that this specification strengthens the one given in Iterable.iterator(), which was already strengthened in the corresponding type-specific class, but was weakened by the fact that this interface extends Collection.

        Specified by:
        iterator in interface java.util.Collection<java.lang.Double>
        Specified by:
        iterator in interface DoubleCollection
        Specified by:
        iterator in interface DoubleIterable
        Specified by:
        iterator in interface DoubleList
        Specified by:
        iterator in interface java.lang.Iterable<java.lang.Double>
        Specified by:
        iterator in interface java.util.List<java.lang.Double>
        Overrides:
        iterator in class DoubleCollections.EmptyCollection
        Returns:
        a type-specific iterator on the elements of this collection.
        See Also:
        Iterable.iterator()

      • listIterator

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

      • subList

        public DoubleList subList​(int from,
                          int to)
        Description copied from interface: DoubleList
        Returns a type-specific view of the portion of this list from the index from, inclusive, to the index to, exclusive.

        Note that this specification strengthens the one given in List.subList(int,int).

        Specified by:
        subList in interface DoubleList
        Specified by:
        subList in interface java.util.List<java.lang.Double>
        See Also:
        List.subList(int,int)

      • getElements

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

      • addElements

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

      • size

        public void size​(int s)
        Description copied from interface: DoubleList
        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 DoubleList
        Parameters:
        s - the new size.

      • compareTo

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

      • clone

        public java.lang.Object clone()

      • hashCode

        public int hashCode()
        Specified by:
        hashCode in interface java.util.Collection<java.lang.Double>
        Specified by:
        hashCode in interface java.util.List<java.lang.Double>
        Overrides:
        hashCode in class DoubleCollections.EmptyCollection

      • equals

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