horstmann.ch10_command

Class GreetingAction

java.lang.Object

javax.swing.AbstractAction

horstmann.ch10_command.GreetingAction

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.Action

public class GreetingAction
extends javax.swing.AbstractAction

This action places a greeting into a text field and afterwards disables itself and enables its opposite action.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	greeting
private javax.swing.Action	oppositeAction
private javax.swing.JTextArea	textArea

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor and Description
GreetingAction(java.lang.String greeting, javax.swing.JTextArea textArea) Constructs a greeting action.

Method Summary

Modifier and Type	Method and Description
void	actionPerformed(java.awt.event.ActionEvent event)
void	setOpposite(javax.swing.Action action) Sets the opposite action.

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

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

Field Detail

greeting

private java.lang.String greeting

textArea

private javax.swing.JTextArea textArea

oppositeAction

private javax.swing.Action oppositeAction

Constructor Detail

GreetingAction

public GreetingAction(java.lang.String greeting,
                      javax.swing.JTextArea textArea)

Constructs a greeting action.

Parameters:

greeting - the string to add to the text area

textArea - the text area to which to add the greeting

Method Detail

setOpposite

public void setOpposite(javax.swing.Action action)

Sets the opposite action.

Parameters:

action - the action to be enabled after this action was carried out

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent event)