public abstract class AbstractBagDecorator<E> extends AbstractCollectionDecorator<E> implements Bag<E>
Bag to provide additional behaviour.
Methods are forwarded directly to the decorated bag.
| Modifier | Constructor and Description |
|---|---|
protected |
AbstractBagDecorator()
Constructor only used in deserialization, do not use otherwise.
|
protected |
AbstractBagDecorator(Bag<E> bag)
Constructor that wraps (not copies).
|
| Modifier and Type | Method and Description |
|---|---|
boolean |
add(E object,
int count)
Adds
nCopies copies of the specified object to the Bag. |
protected Bag<E> |
decorated()
Gets the bag being decorated.
|
int |
getCount(Object object)
Returns the number of occurrences (cardinality) of the given
object currently in the bag.
|
boolean |
remove(Object object,
int count)
Removes
nCopies copies of the specified object from the Bag. |
Set<E> |
uniqueSet()
Returns a
Set of unique elements in the Bag. |
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toStringclone, finalize, getClass, notify, notifyAll, wait, wait, waitprotected AbstractBagDecorator()
protected AbstractBagDecorator(Bag<E> bag)
bag - the bag to decorate, must not be nullIllegalArgumentException - if list is nullprotected Bag<E> decorated()
decorated in class AbstractCollectionDecorator<E>public int getCount(Object object)
Bagpublic boolean add(E object, int count)
BagnCopies copies of the specified object to the Bag.
If the object is already in the Bag.uniqueSet() then increment its
count as reported by Bag.getCount(Object). Otherwise add it to the
Bag.uniqueSet() and report its count as nCopies.
public boolean remove(Object object, int count)
BagnCopies copies of the specified object from the Bag.
If the number of copies to remove is greater than the actual number of copies in the Bag, no error is thrown.
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