Package it.unimi.dsi.fastutil.booleans
Class BooleanCollections.EmptyCollection
java.lang.Object
java.util.AbstractCollection<Boolean>
it.unimi.dsi.fastutil.booleans.AbstractBooleanCollection
it.unimi.dsi.fastutil.booleans.BooleanCollections.EmptyCollection
- All Implemented Interfaces:
BooleanCollection
,BooleanIterable
,Iterable<Boolean>
,Collection<Boolean>
- Direct Known Subclasses:
BooleanBigLists.EmptyBigList
,BooleanLists.EmptyList
,BooleanSets.EmptySet
- Enclosing class:
BooleanCollections
An immutable class representing an empty type-specific collection.
This class may be useful to implement your own in case you subclass a type-specific collection.
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Method Summary
Modifier and TypeMethodDescriptionboolean
Adds all elements of the given type-specific collection to this collection.boolean
addAll
(Collection<? extends Boolean> c) void
clear()
boolean
contains
(boolean k) Returnstrue
if this collection contains the specified element.boolean
Checks whether this collection contains all elements from the given type-specific collection.boolean
containsAll
(Collection<?> c) boolean
void
forEach
(BooleanConsumer action) Performs the given action for each element of this type-specificIterable
until all elements have been processed or the action throws an exception.void
Deprecated.int
hashCode()
iterator()
Returns a type-specific iterator on the elements of this collection.boolean
Remove from this collection all elements in the given type-specific collection.boolean
removeAll
(Collection<?> c) boolean
removeIf
(BooleanPredicate filter) Remove from this collection all elements which satisfy the given predicate.boolean
Deprecated.boolean
Retains in this collection only elements from the given type-specific collection.boolean
retainAll
(Collection<?> c) int
size()
Returns a type-specific spliterator on the elements of this collection.Object[]
toArray()
<T> T[]
toArray
(T[] array) boolean[]
Returns a primitive type array containing the items of this collection.boolean[]
toBooleanArray
(boolean[] a) Deprecated.Methods inherited from class it.unimi.dsi.fastutil.booleans.AbstractBooleanCollection
add, add, contains, rem, remove, toArray, toString
Methods inherited from class java.util.AbstractCollection
isEmpty
Methods inherited from interface java.util.Collection
isEmpty, parallelStream, stream, toArray
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Method Details
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contains
public boolean contains(boolean k) Description copied from class:AbstractBooleanCollection
Returnstrue
if this collection contains the specified element.- Specified by:
contains
in interfaceBooleanCollection
- Overrides:
contains
in classAbstractBooleanCollection
- See Also:
-
toArray
- Specified by:
toArray
in interfaceCollection<Boolean>
- Overrides:
toArray
in classAbstractCollection<Boolean>
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toArray
public <T> T[] toArray(T[] array) - Specified by:
toArray
in interfaceCollection<Boolean>
- Overrides:
toArray
in classAbstractCollection<Boolean>
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iterator
Description copied from interface:BooleanCollection
Returns a type-specific iterator on the elements of this collection.- Specified by:
iterator
in interfaceBooleanCollection
- Specified by:
iterator
in interfaceBooleanIterable
- Specified by:
iterator
in interfaceCollection<Boolean>
- Specified by:
iterator
in interfaceIterable<Boolean>
- Specified by:
iterator
in classAbstractBooleanCollection
- Returns:
- a type-specific iterator on the elements of this collection.
- See Also:
-
spliterator
Description copied from interface:BooleanCollection
Returns a type-specific spliterator on the elements of this collection.See
Collection.spliterator()
for more documentation on the requirements of the returned spliterator.- Returns:
- a type-specific spliterator on the elements of this collection.
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size
public int size()- Specified by:
size
in interfaceCollection<Boolean>
- Specified by:
size
in classAbstractCollection<Boolean>
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clear
public void clear()- Specified by:
clear
in interfaceCollection<Boolean>
- Overrides:
clear
in classAbstractCollection<Boolean>
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hashCode
public int hashCode()- Specified by:
hashCode
in interfaceCollection<Boolean>
- Overrides:
hashCode
in classObject
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equals
- Specified by:
equals
in interfaceCollection<Boolean>
- Overrides:
equals
in classObject
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forEach
Deprecated.Description copied from interface:BooleanIterable
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containsAll
Description copied from class:AbstractBooleanCollection
- Specified by:
containsAll
in interfaceCollection<Boolean>
- Overrides:
containsAll
in classAbstractBooleanCollection
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addAll
Description copied from class:AbstractBooleanCollection
- Specified by:
addAll
in interfaceCollection<Boolean>
- Overrides:
addAll
in classAbstractBooleanCollection
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removeAll
Description copied from class:AbstractBooleanCollection
- Specified by:
removeAll
in interfaceCollection<Boolean>
- Overrides:
removeAll
in classAbstractBooleanCollection
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retainAll
Description copied from class:AbstractBooleanCollection
- Specified by:
retainAll
in interfaceCollection<Boolean>
- Overrides:
retainAll
in classAbstractBooleanCollection
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removeIf
Deprecated.Description copied from interface:BooleanCollection
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toBooleanArray
public boolean[] toBooleanArray()Description copied from interface:BooleanCollection
Returns a primitive type array containing the items of this collection.- Specified by:
toBooleanArray
in interfaceBooleanCollection
- Overrides:
toBooleanArray
in classAbstractBooleanCollection
- Returns:
- a primitive type array containing the items of this collection.
- See Also:
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toBooleanArray
Deprecated.Description copied from class:AbstractBooleanCollection
Returns a primitive type array containing the items of this collection.Note that, contrarily to
Collection.toArray(Object[])
, this methods just writes all elements of this collection: no special value will be added after the last one.- Specified by:
toBooleanArray
in interfaceBooleanCollection
- Overrides:
toBooleanArray
in classAbstractBooleanCollection
- Parameters:
a
- if this array is big enough, it will be used to store this collection.- Returns:
- a primitive type array containing the items of this collection.
- See Also:
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forEach
Description copied from interface:BooleanIterable
Performs the given action for each element of this type-specificIterable
until all elements have been processed or the action throws an exception.- Parameters:
action
- the action to be performed for each element.- See Also:
-
containsAll
Description copied from interface:BooleanCollection
Checks whether this collection contains all elements from the given type-specific collection.- Specified by:
containsAll
in interfaceBooleanCollection
- Overrides:
containsAll
in classAbstractBooleanCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection contains all elements of the argument.- See Also:
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addAll
Description copied from interface:BooleanCollection
Adds all elements of the given type-specific collection to this collection.- Specified by:
addAll
in interfaceBooleanCollection
- Overrides:
addAll
in classAbstractBooleanCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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removeAll
Description copied from interface:BooleanCollection
Remove from this collection all elements in the given type-specific collection.- Specified by:
removeAll
in interfaceBooleanCollection
- Overrides:
removeAll
in classAbstractBooleanCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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retainAll
Description copied from interface:BooleanCollection
Retains in this collection only elements from the given type-specific collection.- Specified by:
retainAll
in interfaceBooleanCollection
- Overrides:
retainAll
in classAbstractBooleanCollection
- Parameters:
c
- a type-specific collection.- Returns:
true
if this collection changed as a result of the call.- See Also:
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removeIf
Description copied from interface:BooleanCollection
Remove from this collection all elements which satisfy the given predicate.- Parameters:
filter
- a predicate which returnstrue
for elements to be removed.- Returns:
true
if any elements were removed.- See Also:
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