Package org.apache.commons.collections4.bag

Class AbstractSortedBagDecorator<E>

java.lang.Object

org.apache.commons.collections4.collection.AbstractCollectionDecorator<E>

org.apache.commons.collections4.bag.AbstractBagDecorator<E>

org.apache.commons.collections4.bag.AbstractSortedBagDecorator<E>

Type Parameters:

E - the type of elements in this bag

All Implemented Interfaces:

Serializable, Iterable<E>, Collection<E>, Bag<E>, SortedBag<E>

Direct Known Subclasses:

CollectionSortedBag, UnmodifiableSortedBag

public abstract class AbstractSortedBagDecorator<E>
extends AbstractBagDecorator<E>
implements SortedBag<E>

Decorates another SortedBag to provide additional behaviour.

Methods are forwarded directly to the decorated bag.

Since:

3.0

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractSortedBagDecorator()	Constructor only used in deserialization, do not use otherwise.
protected	AbstractSortedBagDecorator(SortedBag<E> bag)	Constructor that wraps (not copies).

Method Summary

Modifier and Type	Method	Description
Comparator<? super E>	comparator()	Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering.
protected SortedBag<E>	decorated()	Gets the bag being decorated.
E	first()	Returns the first (lowest) member.
E	last()	Returns the last (highest) member.

Methods inherited from class org.apache.commons.collections4.bag.AbstractBagDecorator

add, equals, getCount, hashCode, remove, uniqueSet

Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator

add, addAll, clear, contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.commons.collections4.Bag

add, add, containsAll, getCount, iterator, remove, remove, removeAll, retainAll, size, uniqueSet

Methods inherited from interface java.util.Collection

addAll, clear, contains, equals, hashCode, isEmpty, parallelStream, removeIf, spliterator, stream, toArray, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

AbstractSortedBagDecorator

protected AbstractSortedBagDecorator()

Constructor only used in deserialization, do not use otherwise.

Since:

3.1

AbstractSortedBagDecorator

protected AbstractSortedBagDecorator(SortedBag<E> bag)

Constructor that wraps (not copies).

Parameters:

bag - the bag to decorate, must not be null

Throws:

NullPointerException - if bag is null

Method Detail

decorated

protected SortedBag<E> decorated()

Gets the bag being decorated.

Overrides:

decorated in class AbstractBagDecorator<E>

Returns:

the decorated bag

first

public E first()

Description copied from interface: SortedBag

Returns the first (lowest) member.

Specified by:

first in interface SortedBag<E>

Returns:

the first element in the sorted bag

last

public E last()

Description copied from interface: SortedBag

Returns the last (highest) member.

Specified by:

last in interface SortedBag<E>

Returns:

the last element in the sorted bag

comparator

public Comparator<? super E> comparator()

Description copied from interface: SortedBag

Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering.

Specified by:

comparator in interface SortedBag<E>

Returns:

the comparator in use, or null if natural ordering