Class TypedNotificationCallback<T> (1.35.0)

public abstract class TypedNotificationCallback<T> implements UnparsedNotificationCallback

Beta
Callback to receive notifications for watched resource in which the . Callback which is used to receive typed AbstractNotifications after subscribing to a topic.

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

Implementation should be thread-safe. Example usage:


 static class MyNotificationCallback
     extends JsonNotificationCallback{@literal <}listresponse{@literal>} {

   private static final long serialVersionUID = 1L;

   {@literal @}Override
   protected void onNotification
       (StoredChannel subscription, Notification notification, ListResponse content) {
     switch (notification.getResourceState()) {
       case ResourceStates.SYNC:
         break;
       case ResourceStates.EXISTS:
         break;
       case ResourceStates.NOT_EXISTS:
         break;
     }
   }

    {@literal @}Override
    protected ObjectParser getObjectParser(Notification notification) throws IOException {
      return new JsonObjectParser(new GsonFactory());
    }

    {@literal @}Override
    protected Class{@literal <}listresponse{@literal>} getDataClass() throws IOException {
      return ListResponse.class;
    }
 }

Inheritance

java.lang.Object > TypedNotificationCallback<T>

Implements

UnparsedNotificationCallback

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Type Parameter

Name	Description
T

Constructors

TypedNotificationCallback()

public TypedNotificationCallback()

Methods

getDataClass()

protected abstract Class<T> getDataClass()

Returns the data class to parse the notification content into or Void.class if no notification content is expected.

Returns

Type	Description
Class<T>

Exceptions

Type	Description
IOException

getObjectParser()

protected abstract ObjectParser getObjectParser()

Returns an ObjectParser which can be used to parse this notification.

Returns

Type	Description
com.google.api.client.util.ObjectParser

Exceptions

Type	Description
IOException

onNotification(StoredChannel storedChannel, TypedNotification<T> notification)

protected abstract void onNotification(StoredChannel storedChannel, TypedNotification<T> notification)

Handles a received typed notification.

Parameters

Name	Description
storedChannel	`StoredChannel` stored notification channel
notification	`TypedNotification<T>` typed notification

Exceptions

Type	Description
IOException

onNotification(StoredChannel storedChannel, UnparsedNotification notification)

public final void onNotification(StoredChannel storedChannel, UnparsedNotification notification)

Handles a received unparsed notification.

Parameters

Name	Description
storedChannel	`StoredChannel`
notification	`UnparsedNotification`

Exceptions

Type	Description
IOException