Package it.unimi.dsi.fastutil.floats

Class FloatLists.Singleton

java.lang.Object
java.util.AbstractCollection<java.lang.Float>
it.unimi.dsi.fastutil.floats.AbstractFloatCollection
it.unimi.dsi.fastutil.floats.AbstractFloatList
it.unimi.dsi.fastutil.floats.FloatLists.Singleton
All Implemented Interfaces:
FloatCollection, it.unimi.dsi.fastutil.floats.FloatIterable, FloatList, FloatStack, it.unimi.dsi.fastutil.Stack<java.lang.Float>, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<java.util.List<? extends java.lang.Float>>, java.lang.Iterable<java.lang.Float>, java.util.Collection<java.lang.Float>, java.util.List<java.lang.Float>, java.util.RandomAccess
Enclosing class:
FloatLists
public static class FloatLists.Singleton
extends AbstractFloatList
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

  • Nested Class Summary

    Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.floats.AbstractFloatList

    AbstractFloatList.FloatRandomAccessSubList, AbstractFloatList.FloatSubList

  • Method Summary

    Modifier and Type Method Description
    boolean addAll​(int i, FloatCollection 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, FloatList 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.Float> c)
    Adds all of the elements in the specified collection to this list (optional operation).
    boolean addAll​(FloatCollection c)
    Adds all elements of the given type-specific collection to this collection.
    boolean addAll​(FloatList c)
    Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).
    boolean addAll​(java.util.Collection<? extends java.lang.Float> c)
    void addElements​(int index, float[] a)
    Add (hopefully quickly) elements to this type-specific list.
    void addElements​(int index, float[] a, int offset, int length)
    Add (hopefully quickly) elements to this type-specific list.
    void clear()
    java.lang.Object clone()  
    boolean contains​(float k)
    Returns true if this list contains the specified element.
    it.unimi.dsi.fastutil.doubles.DoubleIterator doubleIterator()
    Returns a widened primitive iterator on the elements of this collection.
    it.unimi.dsi.fastutil.doubles.DoubleSpliterator doubleSpliterator()
    Returns widened primitive spliterator on the elements of this collection.
    void forEach​(FloatConsumer action)
    void forEach​(java.util.function.Consumer<? super java.lang.Float> action)
    Deprecated.
    void getElements​(int from, float[] a, int offset, int length)
    Copies (hopefully quickly) elements of this type-specific list into the given array.
    float getFloat​(int i)
    Returns the element at the specified position in this list.
    int indexOf​(float 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.
    FloatListIterator iterator()
    Returns a type-specific iterator on the elements of this collection.
    FloatListIterator listIterator()
    Returns a type-specific list iterator on the list.
    FloatListIterator listIterator​(int i)
    Returns a type-specific list iterator on the list starting at a given index.
    boolean rem​(float k)
    Removes a single instance of the specified element from this collection, if it is present (optional operation).
    boolean removeAll​(FloatCollection c)
    Remove from this collection all elements in the given type-specific collection.
    boolean removeAll​(java.util.Collection<?> c)
    void removeElements​(int from, int to)
    Removes (hopefully quickly) elements of this type-specific list.
    float removeFloat​(int i)
    Removes the element at the specified position in this list (optional operation).
    boolean removeIf​(FloatPredicate filter)
    Remove from this collection all elements which satisfy the given predicate.
    boolean removeIf​(java.util.function.Predicate<? super java.lang.Float> filter)
    Deprecated.
    void replaceAll​(FloatUnaryOperator 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.Float> operator)
    Deprecated.
    boolean retainAll​(FloatCollection c)
    Retains in this collection only elements from the given type-specific collection.
    boolean retainAll​(java.util.Collection<?> c)
    void setElements​(float[] a)
    Set (hopefully quickly) elements to match the array given.
    void setElements​(int index, float[] a)
    Set (hopefully quickly) elements to match the array given.
    void setElements​(int index, float[] a, int offset, int length)
    Set (hopefully quickly) elements to match the array given.
    int size()  
    void size​(int size)
    Sets the size of this list.
    void sort​(FloatComparator comparator)
    Sort a list using a type-specific comparator.
    void sort​(java.util.Comparator<? super java.lang.Float> comparator)
    Deprecated.
    it.unimi.dsi.fastutil.floats.FloatSpliterator spliterator()
    Returns a type-specific spliterator on the elements of this list.
    FloatList 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()
    Deprecated.
    float[] toFloatArray()
    Returns a primitive type array containing the items of this collection.
    void unstableSort​(FloatComparator comparator)
    Sorts this list using a sort not assured to be stable.
    void unstableSort​(java.util.Comparator<? super java.lang.Float> comparator)
    Deprecated.

    Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloatList

    add, add, compareTo, equals, hashCode, lastIndexOf, peekFloat, popFloat, push, set, toArray, topFloat, toString

    Methods inherited from class it.unimi.dsi.fastutil.floats.AbstractFloatCollection

    add, contains, containsAll, containsAll, remove, toFloatArray

    Methods inherited from class java.util.AbstractCollection

    isEmpty, toArray

    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 it.unimi.dsi.fastutil.floats.FloatCollection

    containsAll, doubleParallelStream, doubleStream, parallelStream, removeIf, stream, toFloatArray

    Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatIterable

    forEach

    Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatList

    add, add, contains, get, indexOf, lastIndexOf, remove, remove, replaceAll, set

    Methods inherited from interface it.unimi.dsi.fastutil.floats.FloatStack

    peek, pop, push, top

    Methods inherited from interface java.util.List

    containsAll, isEmpty, toArray

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

    isEmpty

  • Method Details

    • getFloat

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

    • rem

      public boolean rem​(float k)
      Description copied from class: AbstractFloatList
      Removes a single instance of the specified element from this collection, if it is present (optional operation).
      Specified by:
      rem in interface FloatCollection
      Overrides:
      rem in class AbstractFloatList
      See Also:
      List.remove(Object)

    • removeFloat

      public float removeFloat​(int i)
      Description copied from class: AbstractFloatList
      Removes the element at the specified position in this list (optional operation).
      Specified by:
      removeFloat in interface FloatList
      Overrides:
      removeFloat in class AbstractFloatList
      See Also:
      List.remove(int)

    • contains

      public boolean contains​(float k)
      Description copied from class: AbstractFloatList
      Returns true if this list contains the specified element.
      Specified by:
      contains in interface FloatCollection
      Overrides:
      contains in class AbstractFloatList
      See Also:
      List.contains(Object)

    • indexOf

      public int indexOf​(float k)
      Description copied from interface: FloatList
      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 FloatList
      Overrides:
      indexOf in class AbstractFloatList
      See Also:
      List.indexOf(Object)

    • toFloatArray

      public float[] toFloatArray()
      Description copied from interface: FloatCollection
      Returns a primitive type array containing the items of this collection.
      Specified by:
      toFloatArray in interface FloatCollection
      Overrides:
      toFloatArray in class AbstractFloatList
      Returns:
      a primitive type array containing the items of this collection.
      See Also:
      Collection.toArray()

    • listIterator

      public FloatListIterator listIterator()
      Description copied from class: AbstractFloatList
      Returns a type-specific list iterator on the list.
      Specified by:
      listIterator in interface FloatList
      Specified by:
      listIterator in interface java.util.List<java.lang.Float>
      Overrides:
      listIterator in class AbstractFloatList
      See Also:
      List.listIterator()

    • iterator

      public FloatListIterator iterator()
      Description copied from class: AbstractFloatList
      Returns a type-specific iterator on the elements of this collection.
      Specified by:
      iterator in interface java.util.Collection<java.lang.Float>
      Specified by:
      iterator in interface FloatCollection
      Specified by:
      iterator in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Specified by:
      iterator in interface FloatList
      Specified by:
      iterator in interface java.lang.Iterable<java.lang.Float>
      Specified by:
      iterator in interface java.util.List<java.lang.Float>
      Overrides:
      iterator in class AbstractFloatList
      Returns:
      a type-specific iterator on the elements of this collection.

    • spliterator

      public it.unimi.dsi.fastutil.floats.FloatSpliterator spliterator()
      Description copied from interface: FloatList
      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<java.lang.Float>
      Specified by:
      spliterator in interface FloatCollection
      Specified by:
      spliterator in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Specified by:
      spliterator in interface FloatList
      Specified by:
      spliterator in interface java.lang.Iterable<java.lang.Float>
      Specified by:
      spliterator in interface java.util.List<java.lang.Float>
      Returns:
      a type-specific spliterator on the elements of this collection.

    • listIterator

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

    • subList

      public FloatList subList​(int from, int to)
      Description copied from interface: FloatList
      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 FloatList
      Specified by:
      subList in interface java.util.List<java.lang.Float>
      Overrides:
      subList in class AbstractFloatList
      See Also:
      List.subList(int,int)

    • forEach

      @Deprecated public void forEach​(java.util.function.Consumer<? super java.lang.Float> action)
      Deprecated.
      Specified by:
      forEach in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Specified by:
      forEach in interface java.lang.Iterable<java.lang.Float>

    • addAll

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

    • addAll

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

    • removeAll

      public boolean removeAll​(java.util.Collection<?> c)
      Description copied from class: AbstractFloatCollection
      Specified by:
      removeAll in interface java.util.Collection<java.lang.Float>
      Specified by:
      removeAll in interface java.util.List<java.lang.Float>
      Overrides:
      removeAll in class AbstractFloatCollection

    • retainAll

      public boolean retainAll​(java.util.Collection<?> c)
      Description copied from class: AbstractFloatCollection
      Specified by:
      retainAll in interface java.util.Collection<java.lang.Float>
      Specified by:
      retainAll in interface java.util.List<java.lang.Float>
      Overrides:
      retainAll in class AbstractFloatCollection

    • removeIf

      @Deprecated public boolean removeIf​(java.util.function.Predicate<? super java.lang.Float> filter)
      Deprecated.
      Description copied from interface: FloatCollection
      Specified by:
      removeIf in interface java.util.Collection<java.lang.Float>
      Specified by:
      removeIf in interface FloatCollection

    • replaceAll

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

    • replaceAll

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

    • forEach

      public void forEach​(FloatConsumer action)
      Description copied from class: AbstractFloatList
      Specified by:
      forEach in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Overrides:
      forEach in class AbstractFloatList

    • addAll

      public boolean addAll​(FloatList c)
      Description copied from interface: FloatList
      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 FloatList
      See Also:
      List.addAll(Collection)

    • addAll

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

    • addAll

      public boolean addAll​(int i, FloatCollection c)
      Description copied from interface: FloatList
      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 FloatList
      Overrides:
      addAll in class AbstractFloatList
      See Also:
      List.addAll(int,java.util.Collection)

    • addAll

      public boolean addAll​(FloatCollection c)
      Description copied from class: AbstractFloatList
      Adds all elements of the given type-specific collection to this collection.
      Specified by:
      addAll in interface FloatCollection
      Overrides:
      addAll in class AbstractFloatList
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.addAll(Collection)

    • removeAll

      public boolean removeAll​(FloatCollection c)
      Description copied from interface: FloatCollection
      Remove from this collection all elements in the given type-specific collection.
      Specified by:
      removeAll in interface FloatCollection
      Overrides:
      removeAll in class AbstractFloatCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.removeAll(Collection)

    • retainAll

      public boolean retainAll​(FloatCollection c)
      Description copied from interface: FloatCollection
      Retains in this collection only elements from the given type-specific collection.
      Specified by:
      retainAll in interface FloatCollection
      Overrides:
      retainAll in class AbstractFloatCollection
      Parameters:
      c - a type-specific collection.
      Returns:
      true if this collection changed as a result of the call.
      See Also:
      Collection.retainAll(Collection)

    • removeIf

      public boolean removeIf​(FloatPredicate filter)
      Description copied from interface: FloatCollection
      Remove from this collection all elements which satisfy the given predicate.
      Specified by:
      removeIf in interface FloatCollection
      Parameters:
      filter - a predicate which returns true for elements to be removed.
      Returns:
      true if any elements were removed.
      See Also:
      Collection.removeIf(java.util.function.Predicate)

    • doubleIterator

      public it.unimi.dsi.fastutil.doubles.DoubleIterator doubleIterator()
      Description copied from interface: FloatCollection
      Returns a widened primitive iterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive iterators, of which there are only int, long, and double.

      Specified by:
      doubleIterator in interface FloatCollection
      Specified by:
      doubleIterator in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Returns:
      a widened primitive iterator on the elements of this collection.

    • doubleSpliterator

      public it.unimi.dsi.fastutil.doubles.DoubleSpliterator doubleSpliterator()
      Description copied from interface: FloatCollection
      Returns widened primitive spliterator on the elements of this collection.

      This method is provided for the purpose of APIs that expect only the JDK's primitive spliterators, of which there are only int, long, and double.

      Specified by:
      doubleSpliterator in interface FloatCollection
      Specified by:
      doubleSpliterator in interface it.unimi.dsi.fastutil.floats.FloatIterable
      Returns:
      a widened primitive spliterator on the elements of this collection.

    • toArray

      @Deprecated public java.lang.Object[] toArray()
      Deprecated.
      Specified by:
      toArray in interface java.util.Collection<java.lang.Float>
      Specified by:
      toArray in interface java.util.List<java.lang.Float>
      Overrides:
      toArray in class java.util.AbstractCollection<java.lang.Float>

    • sort

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

      Pass null to sort using natural ordering.

      Specified by:
      sort in interface FloatList
      See Also:
      List.sort(java.util.Comparator)

    • unstableSort

      public void unstableSort​(FloatComparator comparator)
      Description copied from interface: FloatList
      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 FloatList

    • sort

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

    • unstableSort

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

    • getElements

      public void getElements​(int from, float[] a, int offset, int length)
      Description copied from class: AbstractFloatList
      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 FloatList
      Overrides:
      getElements in class AbstractFloatList
      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: AbstractFloatList
      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 FloatList
      Overrides:
      removeElements in class AbstractFloatList
      Parameters:
      from - the start index (inclusive).
      to - the end index (exclusive).

    • addElements

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

    • addElements

      public void addElements​(int index, float[] a, int offset, int length)
      Description copied from class: AbstractFloatList
      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 FloatList
      Overrides:
      addElements in class AbstractFloatList
      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​(float[] a)
      Description copied from interface: FloatList
      Set (hopefully quickly) elements to match the array given.
      Specified by:
      setElements in interface FloatList
      Parameters:
      a - the array containing the elements.

    • setElements

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

    • setElements

      public void setElements​(int index, float[] a, int offset, int length)
      Description copied from interface: FloatList
      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 FloatList
      Overrides:
      setElements in class AbstractFloatList
      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<java.lang.Float>
      Specified by:
      size in interface java.util.List<java.lang.Float>
      Specified by:
      size in class java.util.AbstractCollection<java.lang.Float>

    • size

      public void size​(int size)
      Description copied from interface: FloatList
      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 FloatList
      Overrides:
      size in class AbstractFloatList
      Parameters:
      size - the new size.

    • clear

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

    • clone

      public java.lang.Object clone()