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org.apache.commons.collections.bag.package.html Maven / Gradle / Ivy

 


This package contains implementations of the
{@link org.apache.commons.collections.Bag Bag} and 
{@link org.apache.commons.collections.SortedBag 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