E
- the type of the elements in this setpublic final class UnmodifiableSet<E> extends AbstractSerializableSetDecorator<E> implements Unmodifiable
Set
to ensure it can't be altered.
This class is Serializable from Commons Collections 3.1.
Attempts to modify it will result in an UnsupportedOperationException.
Modifier and Type | Method and Description |
---|---|
boolean |
add(E object) |
boolean |
addAll(Collection<? extends E> coll) |
void |
clear() |
Iterator<E> |
iterator() |
boolean |
remove(Object object) |
boolean |
removeAll(Collection<?> coll) |
boolean |
removeIf(Predicate<? super E> filter) |
boolean |
retainAll(Collection<?> coll) |
static <E> Set<E> |
unmodifiableSet(Set<? extends E> set)
Factory method to create an unmodifiable set.
|
decorated, equals, hashCode
contains, containsAll, isEmpty, setCollection, size, toArray, toArray, toString
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
contains, containsAll, isEmpty, size, spliterator, toArray, toArray
parallelStream, stream
public static <E> Set<E> unmodifiableSet(Set<? extends E> set)
E
- the element typeset
- the set to decorate, must not be nullNullPointerException
- if set is nullpublic boolean add(E object)
add
in interface Collection<E>
add
in interface Set<E>
add
in class AbstractCollectionDecorator<E>
public boolean addAll(Collection<? extends E> coll)
addAll
in interface Collection<E>
addAll
in interface Set<E>
addAll
in class AbstractCollectionDecorator<E>
public void clear()
clear
in interface Collection<E>
clear
in interface Set<E>
clear
in class AbstractCollectionDecorator<E>
public boolean remove(Object object)
remove
in interface Collection<E>
remove
in interface Set<E>
remove
in class AbstractCollectionDecorator<E>
public boolean removeIf(Predicate<? super E> filter)
removeIf
in interface Collection<E>
removeIf
in class AbstractCollectionDecorator<E>
public boolean removeAll(Collection<?> coll)
removeAll
in interface Collection<E>
removeAll
in interface Set<E>
removeAll
in class AbstractCollectionDecorator<E>
public boolean retainAll(Collection<?> coll)
retainAll
in interface Collection<E>
retainAll
in interface Set<E>
retainAll
in class AbstractCollectionDecorator<E>
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