it.unimi.dsi.fastutil.longs

Class LongBigLists

java.lang.Object

it.unimi.dsi.fastutil.longs.LongBigLists

public class LongBigLists
extends Object

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

See Also:

Collections, BigList

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LongBigLists.EmptyBigList An immutable class representing an empty type-specific big list.
static class	LongBigLists.ListBigList A class exposing a list as a big list.
static class	LongBigLists.Singleton An immutable class representing a type-specific singleton big list.
static class	LongBigLists.SynchronizedBigList A synchronized wrapper class for big lists.
static class	LongBigLists.UnmodifiableBigList An unmodifiable wrapper class for big lists.

Field Summary

Fields

Modifier and Type	Field and Description
static LongBigLists.EmptyBigList	EMPTY_BIG_LIST An empty big list (immutable).

Method Summary

Methods

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

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_BIG_LIST

public static final LongBigLists.EmptyBigList EMPTY_BIG_LIST

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

The class of this objects represent an abstract empty list that is a sublist of any type of list. Thus, EMPTY_BIG_LIST may be assigned to a variable of any (sorted) type-specific list.

Method Detail

shuffle

public static LongBigList shuffle(LongBigList l,
                  Random random)

Shuffles the specified big list using the specified pseudorandom number generator.

Parameters:

l - the big list to be shuffled.

random - a pseudorandom number generator (please use a XorShift* generator).

Returns:

l.

singleton

public static LongBigList singleton(long element)

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

Parameters:

element - the only element of the returned big list.

Returns:

a type-specific immutable big list containing just element.

singleton

public static LongBigList singleton(Object element)

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

Parameters:

element - the only element of the returned big list.

Returns:

a type-specific immutable big list containing just element.

synchronize

public static LongBigList synchronize(LongBigList l)

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

Parameters:

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

Returns:

a synchronized view of the specified big list.

See Also:

Collections.synchronizedList(List)

synchronize

public static LongBigList synchronize(LongBigList l,
                      Object sync)

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

Parameters:

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

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

Returns:

a synchronized view of the specified big list.

See Also:

Collections.synchronizedList(List)

unmodifiable

public static LongBigList unmodifiable(LongBigList l)

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

Parameters:

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

Returns:

an unmodifiable view of the specified big list.

See Also:

Collections.unmodifiableList(List)

asBigList

public static LongBigList asBigList(LongList list)

Returns a big list backed by the specified list.

Parameters:

list - a list.

Returns:

a big list backed by the specified list.