Package it.unimi.dsi.fastutil.longs
Class LongLists
- java.lang.Object
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- it.unimi.dsi.fastutil.longs.LongLists
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public final class LongLists extends java.lang.Object
A class providing static methods and objects that do useful things with type-specific lists.- See Also:
Collections
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
LongLists.EmptyList
An immutable class representing an empty type-specific list.static class
LongLists.Singleton
An immutable class representing a type-specific singleton list.static class
LongLists.SynchronizedList
A synchronized wrapper class for lists.static class
LongLists.SynchronizedRandomAccessList
A synchronized wrapper class for random-access lists.static class
LongLists.UnmodifiableList
An unmodifiable wrapper class for lists.static class
LongLists.UnmodifiableRandomAccessList
An unmodifiable wrapper class for random-access lists.
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Field Summary
Fields Modifier and Type Field Description static LongLists.EmptyList
EMPTY_LIST
An empty list (immutable).
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static LongList
emptyList()
Returns an empty list (immutable).static LongList
shuffle(LongList l, java.util.Random random)
Shuffles the specified list using the specified pseudorandom number generator.static LongList
singleton(long element)
Returns a type-specific immutable list containing only the specified element.static LongList
singleton(java.lang.Object element)
Returns a type-specific immutable list containing only the specified element.static LongList
synchronize(LongList l)
Returns a synchronized type-specific list backed by the given type-specific list.static LongList
synchronize(LongList l, java.lang.Object sync)
Returns a synchronized type-specific list backed by the given type-specific list, using an assigned object to synchronize.static LongList
unmodifiable(LongList l)
Returns an unmodifiable type-specific list backed by the given type-specific list.
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Field Detail
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EMPTY_LIST
public static final LongLists.EmptyList EMPTY_LIST
An empty list (immutable). It is serializable and cloneable.
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Method Detail
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shuffle
public static LongList shuffle(LongList l, java.util.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
.
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emptyList
public static LongList 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).
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singleton
public static LongList singleton(long 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
.
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singleton
public static LongList singleton(java.lang.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
.
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synchronize
public static LongList synchronize(LongList 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)
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synchronize
public static LongList synchronize(LongList l, java.lang.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)
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unmodifiable
public static LongList unmodifiable(LongList 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)
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