sunw.demo.misc
Class ChangeReporter

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.TextComponent
              |
              +--java.awt.TextField
                    |
                    +--sunw.demo.misc.ChangeReporter

public class ChangeReporter

extends java.awt.TextField

implements java.io.Serializable

A simple extension of TextField that handles PropertyChangeEvents. This Bean handles PropertyChange events by displaying the name of the property and the new property value. A Java Bean that displays bound properties can be connected to a ChangeReporter with the BeanBox. To do so programatically is straightforward:

 import sunw.demo.misc.OurButton;
 import sunw.demo.misc.ChangeReporter;
 import java.awt.*;
 import java.beans.*;
   
 public class DemoChangeReporter
 {
   OurButton button = new OurButton(); 
   ChangeReporter reporter = new ChangeReporter();
   PropertyChangeAdapter adapter = new PropertyChangeAdapter();
     
   DemoChangeReporter()
   {
     button.addPropertyChangeListener(adapter);
     button.setLabel("Report This");
 
     Frame f = new Frame("Demo Change Reporter");
     f.setLayout(new FlowLayout());
     f.add(button);
     f.add(reporter);
     f.pack();
     f.show();
   }
   
   class PropertyChangeAdapter implements PropertyChangeListener 
   {
     public void propertyChange(PropertyChangeEvent e)
     {
       reporter.reportChange(e);
     }
   }
 
   public static void main(String[] argv)
   {
     new DemoChangeReporter();
   }
 }
 

In the example above, the button is connected to the ChangeReporter with a (nested) adpater class. When the DemoChangeReporter object is constructed the buttons label field is set, and the adapters propertyChange method runs.

See Also:

Serialized Form

Fields inherited from class java.awt.TextComponent

textListener

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

ChangeReporter()

Method Summary

void	reportChange(java.beans.PropertyChangeEvent evt)

Methods inherited from class java.awt.TextField

addActionListener, addNotify, echoCharIsSet, getColumns, getEchoChar, getMinimumSize, getMinimumSize, getPreferredSize, getPreferredSize, minimumSize, minimumSize, paramString, preferredSize, preferredSize, processActionEvent, processEvent, removeActionListener, setColumns, setEchoChar, setEchoCharacter, setText

Methods inherited from class java.awt.TextComponent

addTextListener, getCaretPosition, getSelectedText, getSelectionEnd, getSelectionStart, getText, isEditable, processTextEvent, removeNotify, removeTextListener, select, selectAll, setCaretPosition, setEditable, setSelectionEnd, setSelectionStart

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getName, getParent, getPeer, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paint, paintAll, postEvent, prepareImage, prepareImage, print, printAll, processComponentEvent, processFocusEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, update, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

ChangeReporter

public ChangeReporter()

Method Detail

reportChange

public void reportChange(java.beans.PropertyChangeEvent evt)