Examples of java.beans.PropertyChangeSupport

java.beans.PropertyChangeSupport
This is a utility class that can be used by beans that support bound properties. You can use an instance of this class as a member field of your bean and delegate various work to it. This class is serializable. When it is serialized it will save (and restore) any listeners that are themselves serializable. Any non-serializable listeners will be skipped during serialization.

    public synchronized void addPropertyChangeListener(final PropertyChangeListener listener) {
        if (listener == null) {
            return;
        }
        if (changeSupport == null) {
            changeSupport = new PropertyChangeSupport(this);
        }
        changeSupport.addPropertyChangeListener(listener);
    }

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        if (listener == null) {
            return;
        }
        if (changeSupport == null) {
            changeSupport = new PropertyChangeSupport(this);
        }
        changeSupport.addPropertyChangeListener(propertyName, listener);
    }

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    /**
     * Singleton constructor.
     */
    private ProjectionFactory() {
        pcs = new PropertyChangeSupport(this);
    }

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   */
  public SmartProperties() {


    values = new HashMap<String, List<String>>();
    descriptions = new HashMap<String, String>();
    listeners = new PropertyChangeSupport(this);
    vetoables = new VetoableChangeSupport(this);
    storeFlags = new HashMap<String, Boolean>();
    lineNumber = new HashMap<String,Integer>();
    cache = new HashMap<String, Object>();

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   * changes.
   */
  public void addPropertyChangeListener(PropertyChangeListener listener) {


    if (listeners == null) {
      listeners = new PropertyChangeSupport(this);
    }


    listeners.addPropertyChangeListener(listener);
  }

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   */
  public void addPropertyChangeListener(String propertyName,
      PropertyChangeListener listener) {


    if (listeners == null) {
      listeners = new PropertyChangeSupport(this);
    }


    listeners.addPropertyChangeListener(propertyName, listener);
  }

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   */
  public void addVetoableChangeListener(String propertyName,
      VetoableChangeListener listener) {


    if (listeners == null) {
      listeners = new PropertyChangeSupport(this);
    }


    vetoables.addVetoableChangeListener(propertyName, listener);
  }

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     * @param prefix the token to prefix the property names
     * @param props the <code>Properties</code> object
     */
    public void setProperties(String prefix, Properties props) {


        propertyChangeSupport = new PropertyChangeSupport(this);
        setPropertyPrefix(prefix);


        if (props == null) {
            return;
        }

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  public SimpleNamespace(String name) {
    entries = new HashMap<String, Object>();
    children = new HashMap<String, Namespace>();
    
    listeners = new PropertyChangeSupport(this);
    
    unresolvedLookup = new HashMap<String, LookupResult>();
    
    setName(name);
  }

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    public BeanContextChildSupport() {
  super();


  beanContextChildPeer = this;


  pcSupport = new PropertyChangeSupport(beanContextChildPeer);
  vcSupport = new VetoableChangeSupport(beanContextChildPeer);
    }

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