Manager.java

  1. /**
  2.  *
  3.  * Copyright 2014 Florian Schmaus
  4.  *
  5.  * Licensed under the Apache License, Version 2.0 (the "License");
  6.  * you may not use this file except in compliance with the License.
  7.  * You may obtain a copy of the License at
  8.  *
  9.  *     http://www.apache.org/licenses/LICENSE-2.0
  10.  *
  11.  * Unless required by applicable law or agreed to in writing, software
  12.  * distributed under the License is distributed on an "AS IS" BASIS,
  13.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14.  * See the License for the specific language governing permissions and
  15.  * limitations under the License.
  16.  */
  17. package org.jivesoftware.smack;

  18. import java.lang.ref.WeakReference;

  19. import org.jivesoftware.smack.util.Objects;

  20. public abstract class Manager {

  21.     final WeakReference<XMPPConnection> weakConnection;

  22.     public Manager(XMPPConnection connection) {
  23.         Objects.requireNonNull(connection, "XMPPConnection must not be null");

  24.         weakConnection = new WeakReference<XMPPConnection>(connection);
  25.     }

  26.     protected final XMPPConnection connection() {
  27.         return weakConnection.get();
  28.     }
  29. }