Package it.unimi.dsi.fastutil.objects
Class ObjectLists
- java.lang.Object
-
- it.unimi.dsi.fastutil.objects.ObjectLists
-
public final class ObjectLists extends java.lang.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
ObjectLists.EmptyList<K>
An immutable class representing an empty type-specific list.static class
ObjectLists.Singleton<K>
An immutable class representing a type-specific singleton list.static class
ObjectLists.SynchronizedList<K>
A synchronized wrapper class for lists.static class
ObjectLists.SynchronizedRandomAccessList<K>
A synchronized wrapper class for random-access lists.static class
ObjectLists.UnmodifiableList<K>
An unmodifiable wrapper class for lists.static class
ObjectLists.UnmodifiableRandomAccessList<K>
An unmodifiable wrapper class for random-access lists.
-
Field Summary
Fields Modifier and Type Field Description static ObjectLists.EmptyList
EMPTY_LIST
An empty list (immutable).
-
Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static <K> ObjectList<K>
emptyList()
Returns an empty list (immutable).static <K> ObjectList<K>
shuffle(ObjectList<K> l, java.util.Random random)
Shuffles the specified list using the specified pseudorandom number generator.static <K> ObjectList<K>
singleton(K element)
Returns a type-specific immutable list containing only the specified element.static <K> ObjectList<K>
synchronize(ObjectList<K> l)
Returns a synchronized type-specific list backed by the given type-specific list.static <K> ObjectList<K>
synchronize(ObjectList<K> 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 <K> ObjectList<K>
unmodifiable(ObjectList<K> l)
Returns an unmodifiable type-specific list backed by the given type-specific list.
-
-
-
Field Detail
-
EMPTY_LIST
public static final ObjectLists.EmptyList EMPTY_LIST
An empty list (immutable). It is serializable and cloneable.
-
-
Method Detail
-
shuffle
public static <K> ObjectList<K> shuffle(ObjectList<K> 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
.
-
emptyList
public static <K> ObjectList<K> 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 <K> ObjectList<K> singleton(K 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 <K> ObjectList<K> synchronize(ObjectList<K> 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 <K> ObjectList<K> synchronize(ObjectList<K> 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)
-
unmodifiable
public static <K> ObjectList<K> unmodifiable(ObjectList<K> 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)
-
-