com.sptci.echo2
Class ViewPropertyChangeListener

java.lang.Object
  com.sptci.PropertyChangeListener
      com.sptci.echo2.PropertyChangeListener
          com.sptci.echo2.ViewPropertyChangeListener

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.io.Serializable, java.util.EventListener

public class ViewPropertyChangeListener
extends PropertyChangeListener
implements java.io.Serializable

The PropertyChangeListener for change events fired by java beans to update Echo2 UI container classes (represented by PropertyChangeListener.bean).

Copyright 2006 Sans Pareil Technologies, Inc.

Version:

$Id: ViewPropertyChangeListener.java,v 1.2 2006/02/15 00:48:26 rakesh Exp $

Author:

Rakesh Vidyadharan 2006-01-25

See Also:

Serialized Form

Field Summary

private java.util.HashMap<java.lang.String,java.lang.reflect.Field>	fields A map of all the Fields in the PropertyChangeListener.bean.
private static java.util.logging.Logger	logger The logger used to log errors/warnings to.
private java.util.HashMap<java.lang.reflect.Field,java.lang.reflect.Method>	methods A map of the appropriate methods to be invoked for the elements in fields.

Fields inherited from class com.sptci.PropertyChangeListener

bean, properties, typeMapping

Constructor Summary

ViewPropertyChangeListener(java.lang.Object bean)
Create a new instance of the listener for the specified object.

Method Summary

private void	introspect() Introspect the fields of PropertyChangeListener.bean and populate the fields and methods fields.
protected void	processList(java.lang.Object object, java.beans.PropertyChangeEvent event, java.lang.reflect.Field field) Update AbstractList UI components.
protected void	processMap(java.util.Map map, java.beans.PropertyChangeEvent event) Update ToggleButton UI components.
void	propertyChange(java.beans.PropertyChangeEvent event) Implementation of the event handling method.
void	setBean(java.lang.Object bean) Set PropertyChangeListener.bean.
protected void	updateListBox(nextapp.echo2.app.ListBox listBox, java.beans.PropertyChangeEvent event) Update a ListBox UI component.
protected void	updateSelectField(nextapp.echo2.app.SelectField selectField, java.beans.PropertyChangeEvent event) Process a SelectField UI component.

Methods inherited from class com.sptci.echo2.PropertyChangeListener

modifyObject, parseName, processList, processMap

Methods inherited from class com.sptci.PropertyChangeListener

getBean, getProperties, initProperties, modifyPrimitive, objectFromString

Methods inherited from class java.lang.Object

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

Field Detail

logger

private static final transient java.util.logging.Logger logger

The logger used to log errors/warnings to.

fields

private transient java.util.HashMap<java.lang.String,java.lang.reflect.Field> fields

A map of all the Fields in the PropertyChangeListener.bean.

methods

private transient java.util.HashMap<java.lang.reflect.Field,java.lang.reflect.Method> methods

A map of the appropriate methods to be invoked for the elements in fields.

Constructor Detail

ViewPropertyChangeListener

public ViewPropertyChangeListener(java.lang.Object bean)

Create a new instance of the listener for the specified object.

Parameters:

bean - The object whose fields are to be updated by change events.

See Also:

setBean(java.lang.Object)

Method Detail

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent event)
                    throws BindingException

Implementation of the event handling method.

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Overrides:

propertyChange in class PropertyChangeListener

Parameters:

event - A PropertyChangeEvent object describing the event source and the property that has changed.

Throws:

BindingException - If errors are encountered while attempting to modify the property in PropertyChangeListener.bean.

See Also:

PropertyChangeListener.parseName(java.lang.String), processList(java.lang.Object, java.beans.PropertyChangeEvent, java.lang.reflect.Field), processMap(java.util.Map, java.beans.PropertyChangeEvent)

introspect

private void introspect()
                 throws BindingException

Introspect the fields of PropertyChangeListener.bean and populate the fields and methods fields.

Throws:

BindingException - If errors are encountered while introspecting the PropertyChangeListener.bean.

processList

protected void processList(java.lang.Object object,
                           java.beans.PropertyChangeEvent event,
                           java.lang.reflect.Field field)
                    throws BindingException

Update AbstractList UI components.

Parameters:

object - The UI component that is to be updated.

event - A PropertyChangeEvent object describing the event source and the property that has changed.

field - The field that represents the UI component that is to be updated.

Throws:

BindingException - If errors are encountered while attempting to modify the property in PropertyChangeListener.bean.

updateSelectField

protected void updateSelectField(nextapp.echo2.app.SelectField selectField,
                                 java.beans.PropertyChangeEvent event)

Process a SelectField UI component.

Parameters:

selectField - The UI component that is to be updated.

event - A PropertyChangeEvent object describing the event source and the property that has changed.

updateListBox

protected void updateListBox(nextapp.echo2.app.ListBox listBox,
                             java.beans.PropertyChangeEvent event)

Update a ListBox UI component.

Parameters:

listBox - The ListBox UI component that is to be updated.

event - A PropertyChangeEvent object describing the event source and the property that has changed.

processMap

protected void processMap(java.util.Map map,
                          java.beans.PropertyChangeEvent event)

Update ToggleButton UI components.

Parameters:

map - The map that contains the name and selected state of the toggle button.

setBean

public void setBean(java.lang.Object bean)

Set PropertyChangeListener.bean.

Overrides:

setBean in class PropertyChangeListener

Parameters:

bean - The value to set.

See Also:

introspect()