Package org.apache.commons.collections.bag

This package contains implementations of the Bag and SortedBag interfaces.

See:
Description

Class Summary

AbstractBagDecorator<E>	Decorates another Bag to provide additional behaviour.
AbstractMapBag<E>	Abstract implementation of the Bag interface to simplify the creation of subclass implementations.
AbstractMapBag.MutableInteger	Mutable integer class for storing the data.
AbstractSortedBagDecorator<E>	Decorates another SortedBag to provide additional behaviour.
HashBag<E>	Implements Bag, using a HashMap to provide the data storage.
PredicatedBag<E>	Decorates another Bag to validate that additions match a specified predicate.
PredicatedSortedBag<E>	Decorates another SortedBag to validate that additions match a specified predicate.
SynchronizedBag<E>	Decorates another Bag to synchronize its behaviour for a multi-threaded environment.
SynchronizedSortedBag<E>	Decorates another SortedBag to synchronize its behaviour for a multi-threaded environment.
TransformedBag	Decorates another Bag to transform objects that are added.
TransformedSortedBag	Decorates another SortedBag to transform objects that are added.
TreeBag<E>	Implements SortedBag, using a TreeMap to provide the data storage.
TypedBag	Deprecated. Type safety classes not required anymore under 1.5, just use a typed Bag.
TypedSortedBag<E>	Decorates another SortedBag to validate that elements added are of a specific type.
UnmodifiableBag<E>	Decorates another Bag to ensure it can't be altered.
UnmodifiableSortedBag<E>	Decorates another SortedBag to ensure it can't be altered.

Package org.apache.commons.collections.bag Description

This package contains implementations of the Bag and SortedBag interfaces. A bag stores an object and a count of the number of occurences of the object.

The following implementations are provided in the package:

• HashBag - implementation that uses a HashMap to store the data
• TreeBag - implementation that uses a TreeMap to store the data

The following decorators are provided in the package:

• Synchronized - synchronizes method access for multi-threaded environments
• Unmodifiable - ensures the bag cannot be altered
• Predicated - ensures that only elements that are valid according to a predicate can be added
• Typed - ensures that only elements that are of a specific type can be added
• Transformed - transforms each element added to the bag