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
17package com.android.camera.device;
18
19import com.android.camera.async.Lifetime;
20
21/**
22 * Device specific actions for opening and closing a device.
23 */
24public 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