E
- the type of the elements in the collectionpublic final class UnmodifiableCollection<E> extends AbstractCollectionDecorator<E> implements Unmodifiable
Collection
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 <T> Collection<T> |
unmodifiableCollection(Collection<? extends T> coll)
Factory method to create an unmodifiable collection.
|
contains, containsAll, decorated, isEmpty, setCollection, size, toArray, toArray, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
equals, hashCode, parallelStream, spliterator, stream
public static <T> Collection<T> unmodifiableCollection(Collection<? extends T> coll)
If the collection passed in is already unmodifiable, it is returned.
T
- the type of the elements in the collectioncoll
- the collection to decorate, must not be nullNullPointerException
- if collection is nullpublic Iterator<E> iterator()
iterator
in interface Iterable<E>
iterator
in interface Collection<E>
iterator
in class AbstractCollectionDecorator<E>
public boolean add(E object)
add
in interface Collection<E>
add
in class AbstractCollectionDecorator<E>
public boolean addAll(Collection<? extends E> coll)
addAll
in interface Collection<E>
addAll
in class AbstractCollectionDecorator<E>
public void clear()
clear
in interface Collection<E>
clear
in class AbstractCollectionDecorator<E>
public boolean remove(Object object)
remove
in interface Collection<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 class AbstractCollectionDecorator<E>
public boolean retainAll(Collection<?> coll)
retainAll
in interface Collection<E>
retainAll
in class AbstractCollectionDecorator<E>
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