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## org.apache.commons.collections
Interface SortedBag

All Superinterfaces:
  Bag, Collection

All Known Implementing Classes:
  AbstractSortedBagDecorator, PredicatedSortedBag, SynchronizedSortedBag, TransformedSortedBag, TreeBag, TreeBag

public interface SortedBag
extends Bag

Defines a type of `Bag` that maintains a sorted order among its unique representative members.

Since:
  Commons Collections 2.0
Version:
  $Revision: 1.9 $ $Date: 2004/02/18 01:15:42 $
Author:
  Chuck Burdick

Method Summary
`Comparator` | `comparator()` Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering.
`Object` | `first()` Returns the first (lowest) member.
`Object` | `last()` Returns the last (highest) member.

Methods inherited from interface org.apache.commons.collections.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, toArray, toArray`

Method Detail

### comparator

    public Comparator comparator()

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

  Returns:
    the comparator in use, or null if natural ordering

### first

    public Object first()

  Returns the first (lowest) member.

  Returns:
    the first element in the sorted bag

### last

    public Object last()

  Returns the last (highest) member.

  Returns:
    the last element in the sorted bag

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