Class DoubleLists.Singleton
- java.lang.Object
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- java.util.AbstractCollection<Double>
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- it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection
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- it.unimi.dsi.fastutil.doubles.AbstractDoubleList
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- it.unimi.dsi.fastutil.doubles.DoubleLists.Singleton
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- All Implemented Interfaces:
DoubleCollection
,DoubleIterable
,DoubleList
,DoubleStack
,Stack<Double>
,Serializable
,Cloneable
,Comparable<List<? extends Double>>
,Iterable<Double>
,Collection<Double>
,List<Double>
,RandomAccess
- Enclosing class:
- DoubleLists
public static class DoubleLists.Singleton extends AbstractDoubleList implements RandomAccess, Serializable, 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
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Nested Class Summary
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Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleList
AbstractDoubleList.DoubleSubList
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description 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, Collection<? extends Double> c)
Adds all of the elements in the specified collection to this list (optional operation).boolean
addAll(DoubleCollection c)
Adds all elements of the given type-specific collection to this collection.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).boolean
addAll(Collection<? extends Double> c)
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.void
clear()
Object
clone()
boolean
contains(double k)
Returns true if this list contains the specified element.double
getDouble(int i)
Returns the element at the specified position in this list.DoubleListIterator
iterator()
Returns a type-specific iterator on the elements of this collection.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).boolean
removeAll(DoubleCollection c)
Remove from this collection all elements in the given type-specific collection.boolean
removeAll(Collection<?> c)
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.boolean
retainAll(DoubleCollection c)
Retains in this collection only elements from the given type-specific collection.boolean
retainAll(Collection<?> c)
void
setElements(double[] a)
Set (hopefully quickly) elements to match the array given.void
setElements(int index, double[] a)
Set (hopefully quickly) elements to match the array given.void
setElements(int index, double[] 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(DoubleComparator comparator)
Sort a list using a type-specific comparator.void
sort(Comparator<? super Double> comparator)
Deprecated.DoubleList
subList(int from, int to)
Returns a type-specific view of the portion of this list from the indexfrom
, inclusive, to the indexto
, exclusive.double[]
toDoubleArray()
Returns a primitive type array containing the items of this collection.void
unstableSort(DoubleComparator comparator)
Sorts this list using a sort not assured to be stable.void
unstableSort(Comparator<? super Double> comparator)
Deprecated.-
Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleList
add, add, compareTo, equals, getElements, hashCode, indexOf, lastIndexOf, peekDouble, popDouble, push, set, topDouble, toString
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Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection
add, contains, containsAll, containsAll, remove, toArray, toDoubleArray
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Methods inherited from class java.util.AbstractCollection
isEmpty, toArray, toArray
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Methods inherited from interface java.util.Collection
parallelStream, stream, toArray
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection
containsAll, removeIf, removeIf, toArray, toDoubleArray
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleIterable
forEach, forEach
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleList
add, add, contains, get, indexOf, lastIndexOf, remove, remove, set
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Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleStack
peek, pop, push, top
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Methods inherited from interface java.util.List
containsAll, isEmpty, replaceAll, spliterator, toArray, toArray
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Method Detail
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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 interfaceDoubleList
- See Also:
List.get(int)
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rem
public boolean rem(double k)
Description copied from class:AbstractDoubleList
Removes a single instance of the specified element from this collection, if it is present (optional operation).This implementation delegates to
indexOf()
.- Specified by:
rem
in interfaceDoubleCollection
- Overrides:
rem
in classAbstractDoubleList
- See Also:
List.remove(Object)
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removeDouble
public double removeDouble(int i)
Description copied from class:AbstractDoubleList
Removes the element at the specified position in this list (optional operation).This implementation always throws an
UnsupportedOperationException
.- Specified by:
removeDouble
in interfaceDoubleList
- Overrides:
removeDouble
in classAbstractDoubleList
- See Also:
List.remove(int)
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contains
public boolean contains(double k)
Description copied from class:AbstractDoubleList
Returns true if this list contains the specified element.This implementation delegates to
indexOf()
.- Specified by:
contains
in interfaceDoubleCollection
- Overrides:
contains
in classAbstractDoubleList
- See Also:
List.contains(Object)
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toDoubleArray
public double[] toDoubleArray()
Description copied from interface:DoubleCollection
Returns a primitive type array containing the items of this collection.- Specified by:
toDoubleArray
in interfaceDoubleCollection
- Overrides:
toDoubleArray
in classAbstractDoubleCollection
- Returns:
- a primitive type array containing the items of this collection.
- See Also:
Collection.toArray()
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listIterator
public DoubleListIterator listIterator()
Description copied from class:AbstractDoubleList
Returns a type-specific list iterator on the list.This implementation delegates to
listIterator(0)
.- Specified by:
listIterator
in interfaceDoubleList
- Specified by:
listIterator
in interfaceList<Double>
- Overrides:
listIterator
in classAbstractDoubleList
- See Also:
List.listIterator()
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iterator
public DoubleListIterator iterator()
Description copied from class:AbstractDoubleList
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 extendsCollection
.This implementation delegates to
AbstractDoubleList.listIterator()
.- Specified by:
iterator
in interfaceCollection<Double>
- Specified by:
iterator
in interfaceDoubleCollection
- Specified by:
iterator
in interfaceDoubleIterable
- Specified by:
iterator
in interfaceDoubleList
- Specified by:
iterator
in interfaceIterable<Double>
- Specified by:
iterator
in interfaceList<Double>
- Overrides:
iterator
in classAbstractDoubleList
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
Iterable.iterator()
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listIterator
public DoubleListIterator listIterator(int i)
Description copied from class:AbstractDoubleList
Returns a type-specific list iterator on the list starting at a given index.This implementation is based on the random-access methods.
- Specified by:
listIterator
in interfaceDoubleList
- Specified by:
listIterator
in interfaceList<Double>
- Overrides:
listIterator
in classAbstractDoubleList
- See Also:
List.listIterator(int)
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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 indexfrom
, inclusive, to the indexto
, exclusive.Note that this specification strengthens the one given in
List.subList(int,int)
.- Specified by:
subList
in interfaceDoubleList
- Specified by:
subList
in interfaceList<Double>
- Overrides:
subList
in classAbstractDoubleList
- See Also:
List.subList(int,int)
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addAll
public boolean addAll(int i, Collection<? extends Double> c)
Description copied from class:AbstractDoubleList
Adds all of the elements in the specified collection to this list (optional operation).- Specified by:
addAll
in interfaceList<Double>
- Overrides:
addAll
in classAbstractDoubleList
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addAll
public boolean addAll(Collection<? extends Double> c)
Description copied from class:AbstractDoubleList
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceCollection<Double>
- Specified by:
addAll
in interfaceList<Double>
- Overrides:
addAll
in classAbstractDoubleList
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removeAll
public boolean removeAll(Collection<?> c)
Description copied from class:AbstractDoubleCollection
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.- Specified by:
removeAll
in interfaceCollection<Double>
- Specified by:
removeAll
in interfaceList<Double>
- Overrides:
removeAll
in classAbstractDoubleCollection
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retainAll
public boolean retainAll(Collection<?> c)
Description copied from class:AbstractDoubleCollection
This implementation delegates to the type-specific version if given a type-specific collection, otherwise is uses the implementation from
AbstractCollection
.- Specified by:
retainAll
in interfaceCollection<Double>
- Specified by:
retainAll
in interfaceList<Double>
- Overrides:
retainAll
in classAbstractDoubleCollection
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addAll
public boolean addAll(DoubleList c)
Description copied from class:AbstractDoubleList
Appends all of the elements in the specified type-specific list to the end of this type-specific list (optional operation).This implementation delegates to the type-specific list version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceDoubleList
- Overrides:
addAll
in classAbstractDoubleList
- See Also:
List.add(int,Object)
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addAll
public boolean addAll(int i, DoubleList c)
Description copied from class:AbstractDoubleList
Inserts all of the elements in the specified type-specific list into this type-specific list at the specified position (optional operation).This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceDoubleList
- Overrides:
addAll
in classAbstractDoubleList
- See Also:
List.add(int,Object)
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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 interfaceDoubleList
- Overrides:
addAll
in classAbstractDoubleList
- See Also:
List.addAll(int,java.util.Collection)
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addAll
public boolean addAll(DoubleCollection c)
Description copied from class:AbstractDoubleList
Adds all elements of the given type-specific collection to this collection.This implementation delegates to the type-specific version of
List.addAll(int, Collection)
.- Specified by:
addAll
in interfaceDoubleCollection
- Overrides:
addAll
in classAbstractDoubleList
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.addAll(Collection)
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removeAll
public boolean removeAll(DoubleCollection c)
Description copied from interface:DoubleCollection
Remove from this collection all elements in the given type-specific collection.- Specified by:
removeAll
in interfaceDoubleCollection
- Overrides:
removeAll
in classAbstractDoubleCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.removeAll(Collection)
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retainAll
public boolean retainAll(DoubleCollection c)
Description copied from interface:DoubleCollection
Retains in this collection only elements from the given type-specific collection.- Specified by:
retainAll
in interfaceDoubleCollection
- Overrides:
retainAll
in classAbstractDoubleCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
Collection.retainAll(Collection)
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sort
public void sort(DoubleComparator comparator)
Description copied from interface:DoubleList
Sort a list using a type-specific comparator.Pass
null
to sort using natural ordering.- Specified by:
sort
in interfaceDoubleList
- See Also:
List.sort(java.util.Comparator)
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unstableSort
public void unstableSort(DoubleComparator comparator)
Description copied from interface:DoubleList
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 interfaceDoubleList
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sort
@Deprecated public void sort(Comparator<? super Double> comparator)
Deprecated.Description copied from interface:DoubleList
- Specified by:
sort
in interfaceDoubleList
- Specified by:
sort
in interfaceList<Double>
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unstableSort
@Deprecated public void unstableSort(Comparator<? super Double> comparator)
Deprecated.Description copied from interface:DoubleList
Sorts this list using a sort not assured to be stable.- Specified by:
unstableSort
in interfaceDoubleList
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removeElements
public void removeElements(int from, int to)
Description copied from class:AbstractDoubleList
Removes (hopefully quickly) elements of 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:
removeElements
in interfaceDoubleList
- Overrides:
removeElements
in classAbstractDoubleList
- Parameters:
from
- the start index (inclusive).to
- the end index (exclusive).
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addElements
public void addElements(int index, double[] a)
Description copied from class:AbstractDoubleList
Add (hopefully quickly) elements to this type-specific list.This implementation delegates to the analogous method for array fragments.
- Specified by:
addElements
in interfaceDoubleList
- Overrides:
addElements
in classAbstractDoubleList
- Parameters:
index
- the index at which to add elements.a
- the array containing the elements.
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addElements
public void addElements(int index, double[] a, int offset, int length)
Description copied from class:AbstractDoubleList
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 interfaceDoubleList
- Overrides:
addElements
in classAbstractDoubleList
- 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.
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setElements
public void setElements(double[] a)
Description copied from interface:DoubleList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceDoubleList
- Parameters:
a
- the array containing the elements.
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setElements
public void setElements(int index, double[] a)
Description copied from interface:DoubleList
Set (hopefully quickly) elements to match the array given.- Specified by:
setElements
in interfaceDoubleList
- Parameters:
index
- the index at which to start setting elements.a
- the array containing the elements.
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setElements
public void setElements(int index, double[] a, int offset, int length)
Description copied from interface:DoubleList
Set (hopefully quickly) elements to match the array given. Sets each in this list to the corresponding elements in the array, as if by
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.ListIterator iter = listIterator(index); int i = 0; while (i < length) { iter.next(); iter.set(a[offset + i++]); }
- Specified by:
setElements
in interfaceDoubleList
- Parameters:
index
- the index at which to start setting elements.a
- the array containing the elementsoffset
- the offset of the first element to add.length
- the number of elements to add.
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size
public int size()
- Specified by:
size
in interfaceCollection<Double>
- Specified by:
size
in interfaceList<Double>
- Specified by:
size
in classAbstractCollection<Double>
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size
public void size(int size)
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 interfaceDoubleList
- Overrides:
size
in classAbstractDoubleList
- Parameters:
size
- the new size.
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clear
public void clear()
Description copied from class:AbstractDoubleList
This implementation delegates to
AbstractDoubleList.removeElements(int, int)
.- Specified by:
clear
in interfaceCollection<Double>
- Specified by:
clear
in interfaceList<Double>
- Overrides:
clear
in classAbstractDoubleList
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clone
public Object clone()
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