org.apache.commons.collections
Class TreeBag
- Bag, Collection, Bag, SortedBag
A
Bag
that is backed by a
TreeMap
.
Order will be maintained among the unique representative
members.
$Revision: 155406 $ $Date: 2005-02-26 12:55:26 +0000 (Sat, 26 Feb 2005) $TreeBag() - Constructs an empty
TreeBag .
|
TreeBag(Collection coll) - Constructs a
Bag containing all the members of the given
collection.
|
TreeBag(Comparator comparator) - Constructs an empty
Bag that maintains order on its unique
representative members according to the given Comparator .
|
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.
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add , add , addAll , calcTotalSize , clear , contains , containsAll , containsAll , equals , getCount , getMap , hashCode , isEmpty , iterator , remove , remove , removeAll , retainAll , retainAll , setMap , size , toArray , toArray , toString , uniqueSet |
TreeBag
public TreeBag()
Constructs an empty TreeBag
.
TreeBag
public TreeBag(Collection coll)
Constructs a
Bag
containing all the members of the given
collection.
coll
- the collection to copy into the bag
TreeBag
public TreeBag(Comparator comparator)
Constructs an empty
Bag
that maintains order on its unique
representative members according to the given
Comparator
.
comparator
- the comparator to use
comparator
public Comparator comparator()
Returns the comparator associated with this sorted set, or null
if it uses its elements' natural ordering.
- comparator in interface SortedBag
- the comparator in use, or null if natural ordering
first
public Object first()
Returns the first (lowest) member.
- first in interface SortedBag
- the first element in the sorted bag
last
public Object last()
Returns the last (highest) member.
- last in interface SortedBag
- the last element in the sorted bag
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