Java Code Examples for java.beans.BeanInfo#getEventSetDescriptors()

The following examples show how to use java.beans.BeanInfo#getEventSetDescriptors() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: DefaultWidgetIntrospector.java From nebula with Eclipse Public License 2.0

6 votes

public BeanInfo getBeanInfo(Class<?> beanClass) throws IntrospectionException {
	Introspector.flushFromCaches(beanClass);
	BeanInfo bi = Introspector.getBeanInfo(beanClass);
	BeanDescriptor bd = bi.getBeanDescriptor();
	MethodDescriptor mds[] = bi.getMethodDescriptors();
	EventSetDescriptor esds[] = bi.getEventSetDescriptors();
	PropertyDescriptor pds[] = bi.getPropertyDescriptors();

	List<PropertyDescriptor> filteredPDList = new ArrayList<PropertyDescriptor>();
	
	List<String> nonPropList = Arrays.asList(getNonProperties());
	for(PropertyDescriptor pd : pds){
		if(!nonPropList.contains(pd.getName()) && pd.getWriteMethod() != null && pd.getReadMethod() != null)
			filteredPDList.add(pd);
	}
	
	int defaultEvent = bi.getDefaultEventIndex();
	int defaultProperty = bi.getDefaultPropertyIndex();

     return new GenericBeanInfo(bd, esds, defaultEvent, 
    		 filteredPDList.toArray(new PropertyDescriptor[filteredPDList.size()]),
			defaultProperty, mds, null);
	
}

Example 2

Source File: SerialDataNode.java From netbeans with Apache License 2.0

6 votes

/** try to register PropertyChangeListener to instance to fire its changes.
 * @param bean     */
private void initPList (Object bean, BeanInfo bInfo, BeanNode.Descriptor descr) {
    EventSetDescriptor[] descs  = bInfo.getEventSetDescriptors();
    try {
        Method setter = null;
        for (int i = 0; descs != null && i < descs.length; i++) {
            setter = descs[i].getAddListenerMethod();
            if (setter != null && setter.getName().equals("addPropertyChangeListener")) { // NOI18N                    
                propertyChangeListener = new PropL(createSupportedPropertyNames(descr));
                setter.invoke(bean, new Object[] {WeakListeners.propertyChange(propertyChangeListener, bean)});
                setSettingsInstance(bean);
            }
        }
    } catch (Exception ex) {
        // ignore
    }
}

Example 3

Source File: AbstractResource.java From gate-core with GNU Lesser General Public License v3.0

5 votes

/**
 * Adds listeners to a resource.
 * @param listeners The listeners to be registered with the resource. A
 * {@link java.util.Map} that maps from fully qualified class name (as a
 * string) to listener (of the type declared by the key).
 * @param resource the resource that listeners will be registered to.
 */
public static void setResourceListeners(Resource resource, Map<String, ? extends Object> listeners)
throws
  IntrospectionException, InvocationTargetException,
  IllegalAccessException, GateException
{
  // get the beaninfo for the resource bean, excluding data about Object
  BeanInfo resBeanInfo = getBeanInfo(resource.getClass());

  // get all the events the bean can fire
  EventSetDescriptor[] events = resBeanInfo.getEventSetDescriptors();

  // add the listeners
  if (events != null) {
    EventSetDescriptor event;
    for(int i = 0; i < events.length; i++) {
      event = events[i];

      // did we get such a listener?
      Object listener =
        listeners.get(event.getListenerType().getName());
      if(listener != null) {
        Method addListener = event.getAddListenerMethod();

        // call the set method with the parameter value
        Object[] args = new Object[1];
        args[0] = listener;
        addListener.invoke(resource, args);
      }
    } // for each event
  }   // if events != null
}

Example 4

Source File: AbstractResource.java From gate-core with GNU Lesser General Public License v3.0

5 votes

/**
 * Removes listeners from a resource.
 * @param listeners The listeners to be removed from the resource. A
 * {@link java.util.Map} that maps from fully qualified class name
 * (as a string) to listener (of the type declared by the key).
 * @param resource the resource that listeners will be removed from.
 */
public static void removeResourceListeners(Resource resource, Map<String, ? extends Object> listeners)
                   throws IntrospectionException, InvocationTargetException,
                          IllegalAccessException, GateException{

  // get the beaninfo for the resource bean, excluding data about Object
  BeanInfo resBeanInfo = getBeanInfo(resource.getClass());

  // get all the events the bean can fire
  EventSetDescriptor[] events = resBeanInfo.getEventSetDescriptors();

  //remove the listeners
  if(events != null) {
    EventSetDescriptor event;
    for(int i = 0; i < events.length; i++) {
      event = events[i];

      // did we get such a listener?
      Object listener =
        listeners.get(event.getListenerType().getName());
      if(listener != null) {
        Method removeListener = event.getRemoveListenerMethod();

        // call the set method with the parameter value
        Object[] args = new Object[1];
        args[0] = listener;
        removeListener.invoke(resource, args);
      }
    } // for each event
  }   // if events != null
}

Example 5