Package it.unimi.dsi.fastutil.doubles

Class DoubleLists

java.lang.Object

it.unimi.dsi.fastutil.doubles.DoubleLists

public final class DoubleLists
extends Object

A class providing static methods and objects that do useful things with type-specific lists.

See Also:

• Collections

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DoubleLists.EmptyList	An immutable class representing an empty type-specific list.
static class	DoubleLists.Singleton	An immutable class representing a type-specific singleton list.
static class	DoubleLists.SynchronizedList	A synchronized wrapper class for lists.
static class	DoubleLists.SynchronizedRandomAccessList	A synchronized wrapper class for random-access lists.
static class	DoubleLists.UnmodifiableList	An unmodifiable wrapper class for lists.
static class	DoubleLists.UnmodifiableRandomAccessList	An unmodifiable wrapper class for random-access lists.

Field Summary

Fields

Modifier and Type	Field	Description
static final DoubleLists.EmptyList	EMPTY_LIST	An empty list (immutable).

Method Summary

Modifier and Type	Method	Description
static DoubleList	emptyList()	Returns an empty list (immutable).
static DoubleList	shuffle(DoubleList l, Random random)	Shuffles the specified list using the specified pseudorandom number generator.
static DoubleList	singleton(double element)	Returns a type-specific immutable list containing only the specified element.
static DoubleList	singleton(Object element)	Returns a type-specific immutable list containing only the specified element.
static DoubleList	synchronize(DoubleList l)	Returns a synchronized type-specific list backed by the given type-specific list.
static DoubleList	synchronize(DoubleList l, Object sync)	Returns a synchronized type-specific list backed by the given type-specific list, using an assigned object to synchronize.
static DoubleList	unmodifiable(DoubleList l)	Returns an unmodifiable type-specific list backed by the given type-specific list.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

EMPTY_LIST

public static final DoubleLists.EmptyList EMPTY_LIST

An empty list (immutable). It is serializable and cloneable.

Method Details

shuffle

public static DoubleList shuffle(DoubleList l,
 Random random)

Shuffles the specified list using the specified pseudorandom number generator.

Parameters:

l - the list to be shuffled.

random - a pseudorandom number generator.

Returns:

l.

emptyList

public static DoubleList emptyList()

Returns an empty list (immutable). It is serializable and cloneable.

This method provides a typesafe access to EMPTY_LIST.

Returns:

an empty list (immutable).

singleton

public static DoubleList singleton(double element)

Returns a type-specific immutable list containing only the specified element. The returned list is serializable and cloneable.

Parameters:

element - the only element of the returned list.

Returns:

a type-specific immutable list containing just element.

singleton

public static DoubleList singleton(Object element)

Returns a type-specific immutable list containing only the specified element. The returned list is serializable and cloneable.

Parameters:

element - the only element of the returned list.

Returns:

a type-specific immutable list containing just element.

synchronize

public static DoubleList synchronize(DoubleList l)

Returns a synchronized type-specific list backed by the given type-specific list.

Parameters:

l - the list to be wrapped in a synchronized list.

Returns:

a synchronized view of the specified list.

See Also:

• Collections.synchronizedList(List)

synchronize

public static DoubleList synchronize(DoubleList l,
 Object sync)

Returns a synchronized type-specific list backed by the given type-specific list, using an assigned object to synchronize.

Parameters:

l - the list to be wrapped in a synchronized list.

sync - an object that will be used to synchronize the access to the list.

Returns:

a synchronized view of the specified list.

See Also:

• Collections.synchronizedList(List)

unmodifiable

public static DoubleList unmodifiable(DoubleList l)

Returns an unmodifiable type-specific list backed by the given type-specific list.

Parameters:

l - the list to be wrapped in an unmodifiable list.

Returns:

an unmodifiable view of the specified list.

See Also:

• Collections.unmodifiableList(List)