1/*
2 * Copyright (C) 2009 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 android.content;
18
19import android.content.ContentProvider;
20import android.net.Uri;
21import android.os.Parcelable;
22import android.os.Parcel;
23
24/**
25 * Contains the result of the application of a {@link ContentProviderOperation}. It is guaranteed
26 * to have exactly one of {@link #uri} or {@link #count} set.
27 */
28public class ContentProviderResult implements Parcelable {
29    public final Uri uri;
30    public final Integer count;
31
32    public ContentProviderResult(Uri uri) {
33        if (uri == null) throw new IllegalArgumentException("uri must not be null");
34        this.uri = uri;
35        this.count = null;
36    }
37
38    public ContentProviderResult(int count) {
39        this.count = count;
40        this.uri = null;
41    }
42
43    public ContentProviderResult(Parcel source) {
44        int type = source.readInt();
45        if (type == 1) {
46            count = source.readInt();
47            uri = null;
48        } else {
49            count = null;
50            uri = Uri.CREATOR.createFromParcel(source);
51        }
52    }
53
54    /** @hide */
55    public ContentProviderResult(ContentProviderResult cpr, int userId) {
56        uri = ContentProvider.maybeAddUserId(cpr.uri, userId);
57        count = cpr.count;
58    }
59
60    public void writeToParcel(Parcel dest, int flags) {
61        if (uri == null) {
62            dest.writeInt(1);
63            dest.writeInt(count);
64        } else {
65            dest.writeInt(2);
66            uri.writeToParcel(dest, 0);
67        }
68    }
69
70    public int describeContents() {
71        return 0;
72    }
73
74    public static final Creator<ContentProviderResult> CREATOR =
75            new Creator<ContentProviderResult>() {
76        public ContentProviderResult createFromParcel(Parcel source) {
77            return new ContentProviderResult(source);
78        }
79
80        public ContentProviderResult[] newArray(int size) {
81            return new ContentProviderResult[size];
82        }
83    };
84
85    public String toString() {
86        if (uri != null) {
87            return "ContentProviderResult(uri=" + uri.toString() + ")";
88        }
89        return "ContentProviderResult(count=" + count + ")";
90    }
91}
92