aim4.util
Class ArrayListRegistry<T>

java.lang.Object
  aim4.util.ArrayListRegistry<T>

All Implemented Interfaces:

Registry<T>

public class ArrayListRegistry<T>
extends Object
implements Registry<T>

A registry based on array list.

Constructor Summary

ArrayListRegistry()
Create an array list registry.

ArrayListRegistry(int initId)
Create an array list 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.

Methods inherited from class java.lang.Object

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

Constructor Detail

ArrayListRegistry

public ArrayListRegistry()

Create an array list registry.

ArrayListRegistry

public ArrayListRegistry(int initId)

Create an array list registry.

Parameters:

initId - the initial ID

Method Detail

register

public int register(T obj)

Description copied from interface: Registry

Register an object.

Specified by:

register in interface Registry<T>

Parameters:

obj - the object

Returns:

the ID of the object

isIdExist

public boolean isIdExist(int id)

Description copied from interface: Registry

Whether or not an object is in the registry.

Specified by:

isIdExist in interface Registry<T>

Parameters:

id - the ID of the object

Returns:

Whether or not an object is in the registry

get

public T get(int id)

Description copied from interface: Registry

Retrieve an object from the registry.

Specified by:

get in interface Registry<T>

Parameters:

id - the ID of the object

Returns:

the object

getNewId

public int getNewId()

Description copied from interface: Registry

Get a new unused ID.

Specified by:

getNewId in interface Registry<T>

Returns:

a new unused ID

set

public void set(int id,
                T obj)

Description copied from interface: Registry

Associate an object to a given ID.

Specified by:

set in interface Registry<T>

Parameters:

id - the ID

obj - the object

setNull

public void setNull(int id)

Description copied from interface: Registry

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

Specified by:

setNull in interface Registry<T>

Parameters:

id - the ID