com.google.api.client.googleapis.subscriptions

Interface NotificationCallback

All Superinterfaces:

Serializable

All Known Implementing Classes:

JsonNotificationCallback, MockNotificationCallback, TypedNotificationCallback

public interface NotificationCallback
extends Serializable

Callback which is used to receive UnparsedNotifications after subscribing to a topic.

Must not be implemented in form of an anonymous class as this will break serialization.

Should be thread-safe as several notifications might be processed at the same time.

State will only be persisted once when a subscription is created. All state changes occurring during the .handleNotification(..) call will be lost.

Example usage:

    class MyNotificationCallback extends NotificationCallback {
      void handleNotification(
          Subscription subscription, UnparsedNotification notification) {
         if (notification.getEventType().equals(EventTypes.UPDATED)) {
          // add items in the notification to the local client state ...
        }
      }
    }

    ...

    myRequest.subscribe(new MyNotificationCallback()).execute();
 

Since:

1.14

Author:

Matthias Linder (mlinder)

Method Summary

Methods

Modifier and Type	Method and Description
void	handleNotification(StoredSubscription subscription, UnparsedNotification notification) Handles a received push notification.

Method Detail

handleNotification

void handleNotification(StoredSubscription subscription,
                      UnparsedNotification notification)
                        throws IOException

Handles a received push notification.

Parameters:

subscription - Subscription to which this notification belongs

notification - Notification which was delivered to this application

Throws:

IOException