rafa
Class NameRegistry

java.lang.Object
  rafa.NameRegistry

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener

public class NameRegistry
extends java.lang.Object
implements java.beans.PropertyChangeListener

Very simple registry of named objects.

Author:

rafa

Method Summary

void	clear() Cleans the register up.
Named	get(java.lang.String name)
java.util.Collection<Named>	getAll() Retrieves all of the registered objects.
java.util.Collection<Named>	getAll(java.lang.Class<?> aClass) Retrieves all the registered objects of a given class.
java.util.Collection<java.lang.String>	getAllNames(java.lang.Class<?> aClass) Retrieves all of the names for registered objects of a given class.
static NameRegistry	getInstance() This class is a singleton.
void	propertyChange(java.beans.PropertyChangeEvent evt) Updates the registry table with added/modified/removed names.
Named	remove(java.lang.String name) Removes a name from the register.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static NameRegistry getInstance()

This class is a singleton.

Returns:

the only instance of this class.

getAll

public java.util.Collection<Named> getAll()

Retrieves all of the registered objects.

Returns:

all of the registered objects.

getAll

public java.util.Collection<Named> getAll(java.lang.Class<?> aClass)

Retrieves all the registered objects of a given class.

Parameters:

aClass - the Class used as selector.

Returns:

a collection of named, registered objects of that class.

getAllNames

public java.util.Collection<java.lang.String> getAllNames(java.lang.Class<?> aClass)

Retrieves all of the names for registered objects of a given class.

Parameters:

aClass - the Class used as selector.

Returns:

a collection of names of registered objects of that class.

get

public Named get(java.lang.String name)

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent evt)

Updates the registry table with added/modified/removed names.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Parameters:

evt -

Throws:

ExistingNameException - if a new/changing name is already registered.

remove

public Named remove(java.lang.String name)

Removes a name from the register.

Parameters:

name - the removed name.

Returns:

the unregistered object.

clear

public void clear()

Cleans the register up.