com.google.api.client.googleapis.notifications.json

Class JsonNotificationCallback<T>

java.lang.Object

com.google.api.client.googleapis.notifications.TypedNotificationCallback<T>

com.google.api.client.googleapis.notifications.json.JsonNotificationCallback<T>

Type Parameters:

T - Type of the data contained within a notification

All Implemented Interfaces:

UnparsedNotificationCallback, Serializable

Direct Known Subclasses:

GsonNotificationCallback, JacksonNotificationCallback

@Beta
public abstract class JsonNotificationCallback<T>
extends TypedNotificationCallback<T>

Beta
A TypedNotificationCallback which uses an JSON content encoding.

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 <ListResponse > {

    private static final long serialVersionUID = 1L;

     @Override
    protected void onNotification(
        StoredChannel channel, TypedNotification <ListResponse > notification) {
      ListResponse content = notification.getContent();
      switch (notification.getResourceState()) {
        case ResourceStates.SYNC:
          break;
        case ResourceStates.EXISTS:
          break;
        case ResourceStates.NOT_EXISTS:
          break;
      }
    }

     @Override
    protected JsonFactory getJsonFactory() throws IOException {
      return new JacksonFactory();
    }

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

Since:

1.16

Author:

Yaniv Inbar

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
JsonNotificationCallback()

Method Summary

Modifier and Type	Method and Description
protected abstract JsonFactory	getJsonFactory() Returns the JSON factory to use to parse the notification content.
protected JsonObjectParser	getObjectParser() Returns an ObjectParser which can be used to parse this notification.

Methods inherited from class com.google.api.client.googleapis.notifications.TypedNotificationCallback

getDataClass, onNotification, onNotification

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonNotificationCallback

public JsonNotificationCallback()

Method Detail

getObjectParser

protected final JsonObjectParser getObjectParser()
                                          throws IOException

Description copied from class: TypedNotificationCallback

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

Specified by:

getObjectParser in class TypedNotificationCallback<T>

Throws:

IOException

getJsonFactory

protected abstract JsonFactory getJsonFactory()
                                       throws IOException

Returns the JSON factory to use to parse the notification content.

Throws:

IOException