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      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 
     17 package android.content;
     18 
     19 import android.content.ContentProvider;
     20 import android.net.Uri;
     21 import android.os.Parcelable;
     22 import 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  */
     28 public 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