it.unimi.dsi.fastutil.doubles

Class DoubleBigLists.Singleton

java.lang.Object

java.util.AbstractCollection<Double>

it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

it.unimi.dsi.fastutil.doubles.AbstractDoubleBigList

it.unimi.dsi.fastutil.doubles.DoubleBigLists.Singleton

All Implemented Interfaces:

BigList<Double>, DoubleBigList, DoubleCollection, DoubleIterable, DoubleStack, Size64, Stack<Double>, Serializable, Cloneable, Comparable<BigList<? extends Double>>, Iterable<Double>, Collection<Double>

Enclosing class:

DoubleBigLists

public static class DoubleBigLists.Singleton
extends AbstractDoubleBigList
implements Serializable, Cloneable

An immutable class representing a type-specific singleton big list.

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

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleBigList

AbstractDoubleBigList.DoubleSubList

Method Summary

Modifier and Type	Method and Description
boolean	addAll(Collection<? extends Double> c) Adds all of the elements in the specified collection to this collection (optional operation).
boolean	addAll(DoubleBigList c) Appends all of the elements in the specified type-specific big list to the end of this type-specific big list (optional operation).
boolean	addAll(DoubleCollection c) Adds all elements of the given type-specific collection to this collection.
boolean	addAll(long i, Collection<? extends Double> c) Adds all of the elements in the specified collection to this list (optional operation).
boolean	addAll(long i, DoubleBigList c) Inserts all of the elements in the specified type-specific big list into this type-specific big list at the specified position (optional operation).
boolean	addAll(long i, DoubleCollection c) Inserts all of the elements in the specified type-specific collection into this type-specific big list at the specified position (optional operation).
void	clear() Removes all of the elements from this collection (optional operation).
Object	clone() Creates and returns a copy of this object.
boolean	contains(double k) Returns true if this list contains the specified element.
double	getDouble(long i) Returns the element at the specified position.
DoubleBigListIterator	listIterator() Returns a type-specific big-list iterator on this type-specific big list.
DoubleBigListIterator	listIterator(long i) Returns a type-specific list iterator on this type-specific big 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(Collection<?> c) Removes all of this collection's elements that are also contained in the specified collection (optional operation).
boolean	removeAll(DoubleCollection c) Remove from this collection all elements in the given type-specific collection.
double	removeDouble(long i) Removes the element at the specified position.
boolean	retainAll(Collection<?> c) Retains only the elements in this collection that are contained in the specified collection (optional operation).
boolean	retainAll(DoubleCollection c) Retains in this collection only elements from the given type-specific collection.
long	size64() Returns the size of this data structure as a long.
DoubleBigList	subList(long from, long to) Returns a type-specific view of the portion of this type-specific big list from the index from, inclusive, to the index to, exclusive.
double[]	toDoubleArray() Returns a primitive type array containing the items of this collection.

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleBigList

add, add, add, addElements, addElements, compareTo, equals, get, getElements, hashCode, indexOf, indexOf, iterator, lastIndexOf, lastIndexOf, peek, peekDouble, pop, popDouble, push, push, remove, removeElements, set, set, size, size, top, topDouble, toString

Methods inherited from class it.unimi.dsi.fastutil.doubles.AbstractDoubleCollection

add, contains, containsAll, remove, toArray, toDoubleArray

Methods inherited from class java.util.AbstractCollection

containsAll, isEmpty, toArray, toArray

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleCollection

add, contains, containsAll, remove, toArray, toDoubleArray

Methods inherited from interface java.util.Collection

containsAll, isEmpty, parallelStream, removeIf, spliterator, stream, toArray, toArray

Methods inherited from interface it.unimi.dsi.fastutil.doubles.DoubleIterable

forEach, forEach

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

isEmpty

Method Detail

getDouble

public double getDouble(long i)

Description copied from interface: DoubleBigList

Returns the element at the specified position.

Specified by:

getDouble in interface DoubleBigList

See Also:

BigList.get(long)

rem

public boolean rem(double k)

Description copied from class: AbstractDoubleBigList

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 interface DoubleCollection

Overrides:

rem in class AbstractDoubleBigList

See Also:

Collection.remove(Object)

removeDouble

public double removeDouble(long i)

Description copied from class: AbstractDoubleBigList

Removes the element at the specified position.

This implementation always throws an UnsupportedOperationException.

Specified by:

removeDouble in interface DoubleBigList

Overrides:

removeDouble in class AbstractDoubleBigList

See Also:

BigList.remove(long)

contains

public boolean contains(double k)

Description copied from class: AbstractDoubleBigList

Returns true if this list contains the specified element.

This implementation delegates to indexOf().

Specified by:

contains in interface DoubleCollection

Overrides:

contains in class AbstractDoubleBigList

See Also:

Collection.contains(Object)

toDoubleArray

public double[] toDoubleArray()

Description copied from interface: DoubleCollection

Returns a primitive type array containing the items of this collection.

Specified by:

toDoubleArray in interface DoubleCollection

Overrides:

toDoubleArray in class AbstractDoubleCollection

Returns:

a primitive type array containing the items of this collection.

See Also:

Collection.toArray()

listIterator

public DoubleBigListIterator listIterator()

Description copied from class: AbstractDoubleBigList

Returns a type-specific big-list iterator on this type-specific big list.

Note that this specification strengthens the one given in BigList.listIterator().

This implementation delegates to listIterator(0).

Specified by:

listIterator in interface BigList<Double>

Specified by:

listIterator in interface DoubleBigList

Overrides:

listIterator in class AbstractDoubleBigList

Returns:

a big-list iterator over the elements in this big list.

See Also:

BigList.listIterator()

listIterator

public DoubleBigListIterator listIterator(long i)

Description copied from class: AbstractDoubleBigList

Returns a type-specific list iterator on this type-specific big list starting at a given index.

Note that this specification strengthens the one given in BigList.listIterator(long).

This implementation is based on the random-access methods.

Specified by:

listIterator in interface BigList<Double>

Specified by:

listIterator in interface DoubleBigList

Overrides:

listIterator in class AbstractDoubleBigList

Parameters:

i - index of first element to be returned from the big-list iterator.

Returns:

a big-list iterator of the elements in this big list, starting at the specified position in this big list.

See Also:

BigList.listIterator(long)

subList

public DoubleBigList subList(long from,
                             long to)

Description copied from interface: DoubleBigList

Returns a type-specific view of the portion of this type-specific big list from the index from, inclusive, to the index to, exclusive.

Note that this specification strengthens the one given in BigList.subList(long,long).

Specified by:

subList in interface BigList<Double>

Specified by:

subList in interface DoubleBigList

Overrides:

subList in class AbstractDoubleBigList

Parameters:

from - the starting element (inclusive).

to - the ending element (exclusive).

Returns:

a big sublist view of this big list.

See Also:

BigList.subList(long,long)

addAll

public boolean addAll(long i,
                      Collection<? extends Double> c)

Description copied from class: AbstractDoubleBigList

Adds all of the elements in the specified collection to this list (optional operation).

Specified by:

addAll in interface BigList<Double>

Overrides:

addAll in class AbstractDoubleBigList

Parameters:

i - index at which to insert the first element from the specified collection.

c - collection containing elements to be added to this big list.

Returns:

true if this big list changed as a result of the call

See Also:

List.addAll(int, Collection)

addAll

public boolean addAll(Collection<? extends Double> c)

Description copied from class: AbstractDoubleBigList

Adds all of the elements in the specified collection to this collection (optional operation). The behavior of this operation is undefined if the specified collection is modified while the operation is in progress. (This implies that the behavior of this call is undefined if the specified collection is this collection, and this collection is nonempty.)

This implementation iterates over the specified collection, and adds each object returned by the iterator to this collection, in turn.

Note that this implementation will throw an UnsupportedOperationException unless add is overridden (assuming the specified collection is non-empty).

This implementation delegates to the type-specific version of BigList.addAll(long, Collection).

Specified by:

addAll in interface Collection<Double>

Overrides:

addAll in class AbstractDoubleBigList

Parameters:

c - collection containing elements to be added to this collection

Returns:

true if this collection changed as a result of the call

See Also:

AbstractCollection.add(Object)

removeAll

public boolean removeAll(Collection<?> c)

Description copied from class: java.util.AbstractCollection

Removes all of this collection's elements that are also contained in the specified collection (optional operation). After this call returns, this collection will contain no elements in common with the specified collection.

This implementation iterates over this collection, checking each element returned by the iterator in turn to see if it's contained in the specified collection. If it's so contained, it's removed from this collection with the iterator's remove method.

Note that this implementation will throw an UnsupportedOperationException if the iterator returned by the iterator method does not implement the remove method and this collection contains one or more elements in common with the specified collection.

Specified by:

removeAll in interface Collection<Double>

Overrides:

removeAll in class AbstractCollection<Double>

Parameters:

c - collection containing elements to be removed from this collection

Returns:

true if this collection changed as a result of the call

See Also:

AbstractCollection.remove(Object), AbstractCollection.contains(Object)

retainAll

public boolean retainAll(Collection<?> c)

Description copied from class: java.util.AbstractCollection

Retains only the elements in this collection that are contained in the specified collection (optional operation). In other words, removes from this collection all of its elements that are not contained in the specified collection.

This implementation iterates over this collection, checking each element returned by the iterator in turn to see if it's contained in the specified collection. If it's not so contained, it's removed from this collection with the iterator's remove method.

Note that this implementation will throw an UnsupportedOperationException if the iterator returned by the iterator method does not implement the remove method and this collection contains one or more elements not present in the specified collection.

Specified by:

retainAll in interface Collection<Double>

Overrides:

retainAll in class AbstractCollection<Double>

Parameters:

c - collection containing elements to be retained in this collection

Returns:

true if this collection changed as a result of the call

See Also:

AbstractCollection.remove(Object), AbstractCollection.contains(Object)

addAll

public boolean addAll(DoubleBigList c)

Description copied from class: AbstractDoubleBigList

Appends all of the elements in the specified type-specific big list to the end of this type-specific big list (optional operation).

This implementation delegates to the type-specific list version of AbstractDoubleBigList.addAll(long, Collection).

Specified by:

addAll in interface DoubleBigList

Overrides:

addAll in class AbstractDoubleBigList

See Also:

List.addAll(int,java.util.Collection)

addAll

public boolean addAll(long i,
                      DoubleBigList c)

Description copied from class: AbstractDoubleBigList

Inserts all of the elements in the specified type-specific big list into this type-specific big list at the specified position (optional operation).

This implementation delegates to the type-specific version of AbstractDoubleBigList.addAll(long, Collection).

Specified by:

addAll in interface DoubleBigList

Overrides:

addAll in class AbstractDoubleBigList

See Also:

List.addAll(int,java.util.Collection)

addAll

public boolean addAll(long i,
                      DoubleCollection c)

Description copied from class: AbstractDoubleBigList

Inserts all of the elements in the specified type-specific collection into this type-specific big list at the specified position (optional operation).

This implementation delegates to the type-specific version of AbstractDoubleBigList.addAll(long, Collection).

Specified by:

addAll in interface DoubleBigList

Overrides:

addAll in class AbstractDoubleBigList

See Also:

List.addAll(int,java.util.Collection)

addAll

public boolean addAll(DoubleCollection c)

Description copied from class: AbstractDoubleBigList

Adds all elements of the given type-specific collection to this collection.

This implementation delegates to the type-specific version of AbstractDoubleBigList.addAll(long, Collection).

Specified by:

addAll in interface DoubleCollection

Overrides:

addAll in class AbstractDoubleBigList

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(DoubleCollection c)

Description copied from interface: DoubleCollection

Remove from this collection all elements in the given type-specific collection.

Specified by:

removeAll in interface DoubleCollection

Overrides:

removeAll in class AbstractDoubleCollection

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(DoubleCollection c)

Description copied from interface: DoubleCollection

Retains in this collection only elements from the given type-specific collection.

Specified by:

retainAll in interface DoubleCollection

Overrides:

retainAll in class AbstractDoubleCollection

Parameters:

c - a type-specific collection.

Returns:

true if this collection changed as a result of the call.

See Also:

Collection.retainAll(Collection)

clear

public void clear()

Description copied from class: AbstractDoubleBigList

Removes all of the elements from this collection (optional operation). The collection will be empty after this method returns.

This implementation iterates over this collection, removing each element using the Iterator.remove operation. Most implementations will probably choose to override this method for efficiency.

Note that this implementation will throw an UnsupportedOperationException if the iterator returned by this collection's iterator method does not implement the remove method and this collection is non-empty.

This implementation delegates to AbstractDoubleBigList.removeElements(long, long).

Specified by:

clear in interface Collection<Double>

Overrides:

clear in class AbstractDoubleBigList

size64

public long size64()

Description copied from interface: Size64

Returns the size of this data structure as a long.

Specified by:

size64 in interface Size64

Returns:

the size of this data structure.

clone

public Object clone()

Description copied from class: java.lang.Object

Creates and returns a copy of this object. The precise meaning of "copy" may depend on the class of the object. The general intent is that, for any object x, the expression:

 x.clone() != x

will be true, and that the expression:

 x.clone().getClass() == x.getClass()

will be true, but these are not absolute requirements. While it is typically the case that:

 x.clone().equals(x)

will be true, this is not an absolute requirement.

By convention, the returned object should be obtained by calling super.clone. If a class and all of its superclasses (except Object) obey this convention, it will be the case that x.clone().getClass() == x.getClass().

By convention, the object returned by this method should be independent of this object (which is being cloned). To achieve this independence, it may be necessary to modify one or more fields of the object returned by super.clone before returning it. Typically, this means copying any mutable objects that comprise the internal "deep structure" of the object being cloned and replacing the references to these objects with references to the copies. If a class contains only primitive fields or references to immutable objects, then it is usually the case that no fields in the object returned by super.clone need to be modified.

The method clone for class Object performs a specific cloning operation. First, if the class of this object does not implement the interface Cloneable, then a CloneNotSupportedException is thrown. Note that all arrays are considered to implement the interface Cloneable and that the return type of the clone method of an array type T[] is T[] where T is any reference or primitive type. Otherwise, this method creates a new instance of the class of this object and initializes all its fields with exactly the contents of the corresponding fields of this object, as if by assignment; the contents of the fields are not themselves cloned. Thus, this method performs a "shallow copy" of this object, not a "deep copy" operation.

The class Object does not itself implement the interface Cloneable, so calling the clone method on an object whose class is Object will result in throwing an exception at run time.

Overrides:

clone in class Object

Returns:

a clone of this instance.

See Also:

Cloneable