content: /**
   * JBoss, Home of Professional Open Source
   * Copyright Red Hat, Inc., and individual contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.jboss.aerogear.unifiedpush.message.sender;
  
  /**
   * A simple Callback interface used when sending {@link org.jboss.aerogear.unifiedpush.message.UnifiedPushMessage} to
   * an actual push network.
   */
  public interface NotificationSenderCallback {
  
      /**
       * Simple indicator which will be called on a successful to deliver to the push network. However, the invocation of
       * this callback does <b>NOT</b> mean the messages have been sent out to the mobile devices. The invocation simply means
       * the {@link org.jboss.aerogear.unifiedpush.message.sender.PushNotificationSender} was able to send the messages to
       * the push network for its further processing
       */
      void onSuccess();
  
      /**
       * Simple indicator which will be called on any type of error that occurred while sending the payload to the
       * underlying push network.
       *
       * @param reason details about the error
       */
      void onError(String reason);
  
  }
  