Package org.appformer.client.stateControl.registry.impl

Class DefaultRegistryImpl<C>

java.lang.Object

org.appformer.client.stateControl.registry.impl.DefaultRegistryImpl<C>

All Implemented Interfaces:

DefaultRegistry<C>, Registry<C>

public class DefaultRegistryImpl<C>
extends Object
implements DefaultRegistry<C>

The default generic implementation for the Registry type. It's implemented for achieving an in-memory and lightweight registry approach, don't do an overuse of it. Note: The Stack class behavior when using the iterator is not the expected one, so used ArrayDeque instead of an Stack to provide right iteration order.

Constructor Summary

Constructors

Constructor	Description
DefaultRegistryImpl()

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears the registry
List<C>	getHistory()	Returns a List containing all the items in the registry
boolean	isEmpty()	Determines if the registry is empty or not
C	peek()	Peeks the last added item.
C	pop()	Pops the last added item and removes it.
void	register(C item)	Registers an item into the registry
void	setMaxSize(int size)	Sets the max number of items that can be stored on the registry.
void	setRegistryChangeListener(RegistryChangeListener registryChangeListener)	Sets a RegistryChangeListener to be called when the registry changes.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultRegistryImpl

public DefaultRegistryImpl()

Method Detail

setMaxSize

public void setMaxSize(int size)

Description copied from interface: Registry

Sets the max number of items that can be stored on the registry.

Specified by:

setMaxSize in interface Registry<C>

Parameters:

size - A positive integer

register

public void register(C item)

Description copied from interface: Registry

Registers an item into the registry

Specified by:

register in interface Registry<C>

Parameters:

item - An item to register

clear

public void clear()

Description copied from interface: Registry

Clears the registry

Specified by:

clear in interface Registry<C>

getHistory

public List<C> getHistory()

Description copied from interface: Registry

Returns a List containing all the items in the registry

Specified by:

getHistory in interface Registry<C>

Returns:

A List of containing the registered items

setRegistryChangeListener

public void setRegistryChangeListener(RegistryChangeListener registryChangeListener)

Description copied from interface: Registry

Sets a RegistryChangeListener to be called when the registry changes.

Specified by:

setRegistryChangeListener in interface Registry<C>

Parameters:

registryChangeListener - A RegistryChangeListener

peek

public C peek()

Description copied from interface: Registry

Peeks the last added item. Doesn't remove it.

Specified by:

peek in interface Registry<C>

Returns:

The last added item

pop

public C pop()

Description copied from interface: Registry

Pops the last added item and removes it.

Specified by:

pop in interface Registry<C>

Returns:

The last added item

isEmpty

public boolean isEmpty()

Description copied from interface: Registry

Determines if the registry is empty or not

Specified by:

isEmpty in interface Registry<C>

Returns:

true if empty, false if not.