public final class UnmodifiableQueue<E> extends AbstractQueueDecorator<E> implements Unmodifiable
Queue to ensure it can't be altered.
Attempts to modify it will result in an UnsupportedOperationException.
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(Object object) |
boolean |
addAll(Collection<? extends E> coll) |
void |
clear() |
Iterator<E> |
iterator() |
boolean |
offer(E obj) |
E |
poll() |
E |
remove() |
boolean |
remove(Object object) |
boolean |
removeAll(Collection<?> coll) |
boolean |
retainAll(Collection<?> coll) |
static <E> Queue<E> |
unmodifiableQueue(Queue<? extends E> queue)
Factory method to create an unmodifiable queue.
|
decorated, element, peekcontains, containsAll, equals, hashCode, isEmpty, setCollection, size, toArray, toArray, toStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitcontains, containsAll, equals, hashCode, isEmpty, size, toArray, toArraypublic static <E> Queue<E> unmodifiableQueue(Queue<? extends E> queue)
If the queue passed in is already unmodifiable, it is returned.
E - the type of the elements in the queuequeue - the queue to decorate, must not be nullIllegalArgumentException - if queue is nullpublic Iterator<E> iterator()
iterator in interface Iterable<E>iterator in interface Collection<E>iterator in class AbstractCollectionDecorator<E>public boolean add(Object object)
add in interface Collection<E>add in interface Queue<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 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>public boolean offer(E obj)
public E poll()
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