org.exolab.castor.mapping.loader.collection.handler
Class QueueCollectionHandler<T>

java.lang.Object
  org.exolab.castor.mapping.loader.collection.handler.QueueCollectionHandler<T>

All Implemented Interfaces:

CollectionHandler<T>

public final class QueueCollectionHandler<T>
extends Object
implements CollectionHandler<T>

Constructor Summary

QueueCollectionHandler()

Method Summary

Object	add(Object collection, T object) Add an object to the collection.
Object	clear(Object collection) Clears the collection of any objects.
Enumeration<T>	elements(Object collection) Returns an enumeration of all the elements in the collection.
int	size(Object collection) Returns the number of elements in the collection.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

QueueCollectionHandler

public QueueCollectionHandler()

Method Detail

add

public Object add(Object collection,
                  T object)

Description copied from interface: CollectionHandler

Add an object to the collection. A collection may not allow the same object to be added more than once. The collection is provided as a parameter and is returned as the return value if the returned collection is a different object. That way the handler can create a new collection or change the collection as necessary (e.g. when resizing an array).

Specified by:

add in interface CollectionHandler<T>

Parameters:

collection - The collection, null if no collection has been created yet

object - The object to add to the collection

Returns:

The collection with the new object if a different instance than the collection parameter, null otherwise

elements

public Enumeration<T> elements(Object collection)

Description copied from interface: CollectionHandler

Returns an enumeration of all the elements in the collection.

Specified by:

elements in interface CollectionHandler<T>

Parameters:

collection - The collection

Returns:

An enumeration of all the elements in the collection

size

public int size(Object collection)

Description copied from interface: CollectionHandler

Returns the number of elements in the collection.

Specified by:

size in interface CollectionHandler<T>

Parameters:

collection - The collection

Returns:

Number of elements in the collection

clear

public Object clear(Object collection)

Description copied from interface: CollectionHandler

Clears the collection of any objects. The collection is provided as a parameter and is returned as the return value if the returned collection is a different object. That way the handler can create a new collection or change the collection as necessary (e.g. when resizing an array).

Specified by:

clear in interface CollectionHandler<T>

Parameters:

collection - The collection, null if no collection has been created yet

Returns:

The empty collection if a different instance than the collection parameter, null otherwise

toString

public String toString()

Overrides:

toString in class Object