er.wopaypal
Class PayPalNotificationListener

java.lang.Object
  er.wopaypal.PayPalNotificationListener

public class PayPalNotificationListener

extends Object

The PayPalNotificationListener class is a receiver for notifications from PayPalAction's ipnAction method, which broadcasts notifications of different events having to do with "Instant Payment Notification" transaction notifications from PayPal. The observer gets registered to receive notifications, and the Delegate interface defines what it can do with the notifications. If a delegate is registered and implements some subset of the methods defined in the PayPalNotificationListener.Delegate interface, PayPalNotificationListener invokes the appropriate method on the delegate object.

Nested Class Summary

static interface	PayPalNotificationListener.Delegate Interface for the delegate.
static class	PayPalNotificationListener.Observer The Observer is the object which is registered (in WOPayPal) to listen for the NSNotifications broadcast by the PayPalAction's ipnAction method.

Field Summary

static String	DeniedPayPalPaymentReceivedNotification Notification name when IPN returns DENIED result.
static String	FailedPayPalPaymentReceivedNotification Notification name when IPN returns FAILED result.
static String	InvalidPayPalPaymentReceivedNotification Notification name when IPN returns INVALID result.
static String	PendingPayPalPaymentReceivedNotification Notification name when IPN returns PENDING result.
static String	ValidPayPalPaymentReceivedNotification Notification name when IPN returns VALID result.

Constructor Summary

PayPalNotificationListener()
Constructor.

Method Summary

protected static Object	defaultDelegate() Method to return the default delegate object.
static Object	delegate() Method to return the assigned delegate object.
static PayPalNotificationListener.Observer	observer() Method to return the observer object.
static void	setDelegate(Object obj) Method to assign the class's delegate object.

Methods inherited from class java.lang.Object

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

Field Detail

DeniedPayPalPaymentReceivedNotification

public static final String DeniedPayPalPaymentReceivedNotification

Notification name when IPN returns DENIED result.

See Also:

Constant Field Values

FailedPayPalPaymentReceivedNotification

public static final String FailedPayPalPaymentReceivedNotification

Notification name when IPN returns FAILED result.

See Also:

Constant Field Values

InvalidPayPalPaymentReceivedNotification

public static final String InvalidPayPalPaymentReceivedNotification

Notification name when IPN returns INVALID result.

See Also:

Constant Field Values

PendingPayPalPaymentReceivedNotification

public static final String PendingPayPalPaymentReceivedNotification

Notification name when IPN returns PENDING result.

See Also:

Constant Field Values

ValidPayPalPaymentReceivedNotification

public static final String ValidPayPalPaymentReceivedNotification

Notification name when IPN returns VALID result.

See Also:

Constant Field Values

Constructor Detail

PayPalNotificationListener

public PayPalNotificationListener()

Constructor.

Method Detail

defaultDelegate

protected static Object defaultDelegate()

Method to return the default delegate object. Creates a new Object as the delegate if it's not assigned.

Returns:

Object

delegate

public static Object delegate()

Method to return the assigned delegate object. If one is not assigned, it returns the defaultDelegate object.

Returns:

Object that is assigned as the class' delegate.

setDelegate

public static void setDelegate(Object obj)

Method to assign the class's delegate object. Throws an IllegalArgumentException if it receives a null object to assign as the delegate.

Parameters:

obj - Object

observer

public static PayPalNotificationListener.Observer observer()

Method to return the observer object. If one is not assigned, it instantiates and returns a new Observer.

Returns:

Observer