Class AbstractBagDecorator<E>
java.lang.Object
org.apache.commons.collections4.collection.AbstractCollectionDecorator<E>
org.apache.commons.collections4.bag.AbstractBagDecorator<E>
- Type Parameters:
E- the type of elements in this bag
- All Implemented Interfaces:
Serializable,Iterable<E>,Collection<E>,Bag<E>
- Direct Known Subclasses:
AbstractSortedBagDecorator,CollectionBag,UnmodifiableBag
public abstract class AbstractBagDecorator<E>
extends AbstractCollectionDecorator<E>
implements Bag<E>
Decorates another
Bag to provide additional behavior.
Methods are forwarded directly to the decorated bag.
- Since:
- 3.0
- See Also:
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstructor only used in deserialization, do not use otherwise.protectedAbstractBagDecorator(Bag<E> bag) Constructor that wraps (not copies). -
Method Summary
Modifier and TypeMethodDescriptionbooleanAddsnCopiescopies of the specified object to the Bag.Gets the bag being decorated.booleanintGets the number of occurrences (cardinality) of the given object currently in the bag.inthashCode()booleanRemovesnCopiescopies of the specified object from the Bag.Returns aSetof unique elements in the Bag.Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator
add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, removeIf, retainAll, setCollection, size, toArray, toArray, toStringMethods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.collections4.Bag
add, containsAll, iterator, remove, removeAll, retainAll, sizeMethods inherited from interface java.util.Collection
addAll, clear, contains, isEmpty, parallelStream, removeIf, spliterator, stream, toArray, toArray
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Constructor Details
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AbstractBagDecorator
protected AbstractBagDecorator()Constructor only used in deserialization, do not use otherwise.- Since:
- 3.1
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AbstractBagDecorator
Constructor that wraps (not copies).- Parameters:
bag- the bag to decorate, must not be null- Throws:
NullPointerException- if bag is null
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Method Details
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add
Description copied from interface:BagAddsnCopiescopies of the specified object to the Bag.If the object is already in the
Bag.uniqueSet()then increment its count as reported byBag.getCount(Object). Otherwise add it to theBag.uniqueSet()and report its count asnCopies. -
decorated
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equals
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getCount
Description copied from interface:BagGets the number of occurrences (cardinality) of the given object currently in the bag. If the object does not exist in the bag, return 0. -
hashCode
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remove
Description copied from interface:BagRemovesnCopiescopies 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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uniqueSet
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