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:
- 
Constructor SummaryConstructorsModifierConstructorDescriptionprotectedConstructor only used in deserialization, do not use otherwise.protectedAbstractBagDecorator(Bag<E> bag) Constructor that wraps (not copies).
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Method SummaryModifier 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.AbstractCollectionDecoratoradd, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, removeIf, retainAll, setCollection, size, toArray, toArray, toStringMethods inherited from class java.lang.Objectclone, finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.collections4.Bagadd, containsAll, iterator, remove, removeAll, retainAll, sizeMethods inherited from interface java.util.CollectionaddAll, clear, contains, isEmpty, parallelStream, removeIf, spliterator, stream, toArray, toArray
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Constructor Details- 
AbstractBagDecoratorprotected AbstractBagDecorator()Constructor only used in deserialization, do not use otherwise.- Since:
- 3.1
 
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AbstractBagDecoratorConstructor 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- 
addDescription 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.
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decorated
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equals
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getCountDescription 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.
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hashCode
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removeDescription 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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