public class HashBag extends AbstractMapBag implements Bag, java.io.Serializable
Bag
, using a HashMap
to provide the
data storage. This is the standard implementation of a bag.
A Bag
stores each object in the collection together with a
count of occurrences. Extra methods on the interface allow multiple copies
of an object to be added or removed at once. It is important to read the
interface javadoc carefully as several methods violate the
Collection
interface specification.
AbstractMapBag.BagIterator, AbstractMapBag.MutableInteger
Modifier and Type | Field and Description |
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private static long |
serialVersionUID
Serial version lock
|
Constructor and Description |
---|
HashBag()
Constructs an empty
HashBag . |
HashBag(java.util.Collection coll)
Constructs a bag containing all the members of the given collection.
|
Modifier and Type | Method and Description |
---|---|
private void |
readObject(java.io.ObjectInputStream in)
Read the bag in using a custom routine.
|
private void |
writeObject(java.io.ObjectOutputStream out)
Write the bag out using a custom routine.
|
add, add, addAll, clear, contains, containsAll, containsAll, doReadObject, doWriteObject, equals, getCount, getMap, hashCode, isEmpty, iterator, remove, remove, removeAll, retainAll, retainAll, size, toArray, toArray, toString, uniqueSet
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
add, add, containsAll, getCount, iterator, remove, remove, removeAll, retainAll, size, uniqueSet
private static final long serialVersionUID
public HashBag()
HashBag
.public HashBag(java.util.Collection coll)
coll
- a collection to copy into this bagprivate void writeObject(java.io.ObjectOutputStream out) throws java.io.IOException
java.io.IOException
private void readObject(java.io.ObjectInputStream in) throws java.io.IOException, java.lang.ClassNotFoundException
java.io.IOException
java.lang.ClassNotFoundException