org.sourceforge.jemm.client.id
Interface TrackedIDFactory

All Known Implementing Classes:

TrackedIDFactoryImpl

public interface TrackedIDFactory

A Factory which produces TrackedID flyweights.

Author:

Paul Keeble

See Also:

TrackedIDFactoryImpl

Method Summary

void	addListener(TrackedIDListener listener) Adds a listener which receives notification if a trackedID is enqueued for garbage collection.
boolean	contains(ID id) Returns true if there is a TrackedID for that ID, false otherwise.
TrackedID	create(ID id) Determines if a TrackedID already exists and if so uses it, otherwise creates a new TrackedID and maps that weakly and returns the value.
TrackedID	get(ID id) Gets a TrackedID if it exists, otherwise returns null.
void	remove(ID id) Removes a mapping for an ID and the associated TrackedID.
void	removeListener(TrackedIDListener listener) Removes the listener

Method Detail

create

TrackedID create(ID id)

Determines if a TrackedID already exists and if so uses it, otherwise creates a new TrackedID and maps that weakly and returns the value.

Parameters:

id - The id to look up

Returns:

The TrackedID associated with the ID

contains

boolean contains(ID id)

Returns true if there is a TrackedID for that ID, false otherwise.

Parameters:

id - The ID to lookup

Returns:

True if the TrackedID is present, false otherwise.

get

TrackedID get(ID id)

Gets a TrackedID if it exists, otherwise returns null.

Parameters:

id - The ID to find.

Returns:

The TrackedID or null if not found

remove

void remove(ID id)

Removes a mapping for an ID and the associated TrackedID.

Parameters:

id -

addListener

void addListener(TrackedIDListener listener)

Adds a listener which receives notification if a trackedID is enqueued for garbage collection.

Parameters:

listener -

removeListener

void removeListener(TrackedIDListener listener)

Removes the listener

Parameters:

listener -