Example usage for java.beans BeanInfo getEventSetDescriptors

Introduction

In this page you can find the example usage for java.beans BeanInfo getEventSetDescriptors.

Prototype

EventSetDescriptor[] getEventSetDescriptors();

Source Link

Document

Returns the event descriptors of the bean that define the types of events fired by this bean.

Usage

From source file:IntrospectorDemo.java

public static void main(String args[]) {
    try {/*  w w w .java2s.  c o  m*/
        Class c = Class.forName("Colors");
        BeanInfo beanInfo = Introspector.getBeanInfo(c);

        System.out.println("Properties:");
        PropertyDescriptor propertyDescriptor[] = beanInfo.getPropertyDescriptors();
        for (int i = 0; i < propertyDescriptor.length; i++) {
            System.out.println("\t" + propertyDescriptor[i].getName());
        }

        System.out.println("Events:");
        EventSetDescriptor eventSetDescriptor[] = beanInfo.getEventSetDescriptors();
        for (int i = 0; i < eventSetDescriptor.length; i++) {
            System.out.println("\t" + eventSetDescriptor[i].getName());
        }
    } catch (Exception e) {
        System.out.println("Exception caught. " + e);
    }
}

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From source file:EventTracerTest.java

/**
 * Adds event tracers for all events to which this component and its children can listen
 * @param c a component// w w  w  . j  a  va 2s. c  o m
 */
public void add(Component c) {
    try {
        // get all events to which this component can listen
        BeanInfo info = Introspector.getBeanInfo(c.getClass());

        EventSetDescriptor[] eventSets = info.getEventSetDescriptors();
        for (EventSetDescriptor eventSet : eventSets)
            addListener(c, eventSet);
    } catch (IntrospectionException e) {
    }
    // ok not to add listeners if exception is thrown

    if (c instanceof Container) {
        // get all children and call add recursively
        for (Component comp : ((Container) c).getComponents())
            add(comp);
    }
}

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