aim4.util
Interface Registry<T>

Type Parameters:

T - the type of object in the registry

All Known Implementing Classes:

ArrayListRegistry, HashMapRegistry, WeakRefRegistry

public interface Registry<T>

A generic registry.

Method Summary

T	get(int id) Retrieve an object from the registry.
int	getNewId() Get a new unused ID.
boolean	isIdExist(int id) Whether or not an object is in the registry.
int	register(T obj) Register an object.
void	set(int id, T obj) Associate an object to a given ID.
void	setNull(int id) Remove the object associated with a given ID from the registry.

Method Detail

register

int register(T obj)

Register an object.

Parameters:

obj - the object

Returns:

the ID of the object

isIdExist

boolean isIdExist(int id)

Whether or not an object is in the registry.

Parameters:

id - the ID of the object

Returns:

Whether or not an object is in the registry

get

T get(int id)

Retrieve an object from the registry.

Parameters:

id - the ID of the object

Returns:

the object

getNewId

int getNewId()

Get a new unused ID.

Returns:

a new unused ID

set

void set(int id,
         T obj)

Associate an object to a given ID.

Parameters:

id - the ID

obj - the object

setNull

void setNull(int id)

Remove the object associated with a given ID from the registry.

Parameters:

id - the ID