org.vrspace.util
Class ObservableProperties

java.lang.Object
  java.util.Dictionary
      java.util.Hashtable
          java.util.Properties
              org.vrspace.util.ObservableProperties

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class ObservableProperties

extends java.util.Properties

Properties which notify it's Observers when a property changes

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.Properties

defaults

Constructor Summary

ObservableProperties()
Constructor

ObservableProperties(java.util.Properties props)
Creates ObservableProperties from Properties

Method Summary

void	addObserver(java.util.Observer observer) Adds an Observer
void	deleteObserver(java.util.Observer observer) Deletes an Observer from the list of observers
void	deleteObsevers() Deletes all Observers
boolean	hasChanged() Properties changed?
java.lang.Object	setProperty(java.lang.String key, java.lang.String value) Sets the property key to value, and notifies Observers

Methods inherited from class java.util.Properties

getProperty, getProperty, list, list, load, propertyNames, save, store

Methods inherited from class java.util.Hashtable

clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, rehash, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ObservableProperties

public ObservableProperties()

Constructor

ObservableProperties

public ObservableProperties(java.util.Properties props)

Creates ObservableProperties from Properties

Method Detail

addObserver

public void addObserver(java.util.Observer observer)

Adds an Observer

deleteObserver

public void deleteObserver(java.util.Observer observer)

Deletes an Observer from the list of observers

deleteObsevers

public void deleteObsevers()

Deletes all Observers

hasChanged

public boolean hasChanged()

Properties changed?

setProperty

public java.lang.Object setProperty(java.lang.String key,
                                    java.lang.String value)

Sets the property key to value, and notifies Observers