2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 package android.app.backup;
19 import java.lang.String;
20 import android.app.backup.RestoreSet;
23 * Callback class for receiving progress reports during a restore operation. These
24 * methods will all be called on your application's main thread.
26 public abstract class RestoreObserver {
28 * Supply a list of the restore datasets available from the current transport. This
29 * method is invoked as a callback following the application's use of the
30 * {@link android.app.backup.IRestoreSession.getAvailableRestoreSets} method.
32 * @param result An array of {@link android.app.backup.RestoreSet RestoreSet} objects
33 * describing all of the available datasets that are candidates for restoring to
34 * the current device. If no applicable datasets exist, {@code result} will be
39 public void restoreSetsAvailable(RestoreSet[] result) {
43 * The restore operation has begun.
45 * @param numPackages The total number of packages being processed in
46 * this restore operation.
48 public void restoreStarting(int numPackages) {
52 * An indication of which package is being restored currently, out of the
53 * total number provided in the {@link #restoreStarting(int)} callback. This method
54 * is not guaranteed to be called: if the transport is unable to obtain
55 * data for one or more of the requested packages, no onUpdate() call will
56 * occur for those packages.
58 * @param nowBeingRestored The index, between 1 and the numPackages parameter
59 * to the {@link #restoreStarting(int)} callback, of the package now being
60 * restored. This may be non-monotonic; it is intended purely as a rough
61 * indication of the backup manager's progress through the overall restore process.
62 * @param currentPackage The name of the package now being restored.
64 public void onUpdate(int nowBeingRestored, String currentPackage) {
68 * The restore process has completed. This method will always be called,
69 * even if no individual package restore operations were attempted.
71 * @param error Zero on success; a nonzero error code if the restore operation
74 public void restoreFinished(int error) {