|  | /* | 
|  | * Copyright (C) 2015 The Android Open Source Project | 
|  | * | 
|  | * 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 android.telecom; | 
|  |  | 
|  | /** | 
|  | * Interface used to identify entities with which another entity can participate in a conference | 
|  | * call with.  The {@link ConnectionService} implementation will only recognize | 
|  | * {@link Conferenceable}s which are {@link Connection}s or {@link Conference}s. | 
|  | */ | 
|  | public abstract class Conferenceable { | 
|  | Conferenceable() {} | 
|  | } |