Package com.pushtechnology.diffusion.client.callbacks

Interface Callback

All Known Subinterfaces:
AuthenticationControl.ControlAuthenticator, ClientControl.QueueEventStream, ClientControl.SessionEventStream, ClientControl.SessionPropertiesStream, Messaging.RequestHandler<T,R>, Messaging.RequestStream<T,R>, Stream, TopicControl.MissingTopicNotificationStream, TopicNotifications.TopicNotificationListener, Topics.SubscriberStream, Topics.ValueStream<V>
All Known Implementing Classes:
Callback.Default, ClientControl.QueueEventStream.Default, ClientControl.SessionEventStream.Default, ClientControl.SessionPropertiesStream.Default, Messaging.FilteredRequestCallback.Default, Stream.Default, TopicControl.MissingTopicNotificationStream.Default, TopicNotifications.TopicNotificationListener.Default, Topics.SubscriberStream.Default, Topics.ValueStream.Default
public interface Callback
Callback interface that provides responses from the server. Extensions of this interface have callback methods that provide results for successful calls.

The Stream extension supports multiple responses for each call.

If the server returns a response for an unknown call context (typically a late response for a call context has timed out), an error will be reported to the session error handler.

Since:
5.1
Author:
DiffusionData Limited
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static class 
    Callback.Default
    Abstract default callback.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    onError(ErrorReason errorReason)
    Notification of a contextual error related to this callback.

  • Method Details

    • onError

      void onError(ErrorReason errorReason)
      Notification of a contextual error related to this callback. This is analogous to an exception being raised. Situations in which onError is called include the session being closed, a communication timeout, or a problem with the provided parameters. No further calls will be made to this callback for the call context.
      Parameters:
      errorReason - a value representing the error; this can be one of constants defined in ErrorReason, or a feature-specific reason