1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.camera.device; 18 19 import com.android.camera.async.Lifetime; 20 21 /** 22 * Device specific actions for opening and closing a device. 23 */ 24 public interface SingleDeviceActions<TDevice> { 25 26 /** 27 * Open the device represented by this instance. This should only 28 * be called if there is a reasonable expectation that the device is 29 * available and openable. 30 * 31 * It is possible for this to throw if there is a problem with the 32 * parameters or if the camera device determined to be un-openable. 33 */ 34 public void executeOpen(SingleDeviceOpenListener<TDevice> openListener, 35 Lifetime deviceLifetime) throws UnsupportedOperationException; 36 /** 37 * Close the device represented by this instance. 38 * 39 * It is possible for this to throw if there is a problem with the 40 * parameters used to create these actions. 41 */ 42 public void executeClose(SingleDeviceCloseListener closeListener, TDevice device) 43 throws UnsupportedOperationException; 44 } 45
