1 /* 2 * Copyright (C) 2008 Esmertec AG. 3 * Copyright (C) 2008 The Android Open Source Project 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 com.android.im.engine; 18 19 import com.android.im.service.AndroidSystemService; 20 21 /** 22 * The interface to access system service objects. 23 * 24 */ 25 public abstract class SystemService { 26 /** 27 * Gets the default instance of the system service. 28 * 29 * @return the default instance of the system service. 30 */ 31 public static SystemService getDefault() { 32 return AndroidSystemService.getInstance(); 33 } 34 35 /** 36 * Gets the system HeartbeatService. 37 * 38 * @return the instance of the HeartbeatService. 39 */ 40 public abstract HeartbeatService getHeartbeatService(); 41 42 /** 43 * Gets the system SmsService. 44 * 45 * @return the instance of the SmsService. 46 */ 47 public abstract SmsService getSmsService(); 48 } 49
