1 /*
2  * Copyright (C) 2022 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.app.admin;
18 
19 import android.annotation.NonNull;
20 import android.annotation.Nullable;
21 import android.annotation.TestApi;
22 import android.os.Parcel;
23 import android.os.Parcelable;
24 
25 import java.util.Set;
26 
27 /**
28  * Class to identify a union resolution mechanism for {@code Set<String>} policies, it's used to
29  * resolve the enforced policy when being set by multiple admins (see
30  * {@link PolicyState#getResolutionMechanism()}).
31  *
32  * @hide
33  */
34 @TestApi
35 public final class StringSetUnion extends ResolutionMechanism<Set<String>> {
36 
37     /**
38      * Union resolution for policies represented {@code Set<String>} which resolves as the union of
39      * all sets.
40      */
41     @NonNull
42     public static final StringSetUnion STRING_SET_UNION = new StringSetUnion();
43 
44     @Override
equals(@ullable Object o)45     public boolean equals(@Nullable Object o) {
46         if (this == o) return true;
47         return o != null && getClass() == o.getClass();
48     }
49     @Override
hashCode()50     public int hashCode() {
51         return 0;
52     }
53 
54     @Override
toString()55     public String toString() {
56         return "StringSetUnion {}";
57     }
58 
59     @Override
describeContents()60     public int describeContents() {
61         return 0;
62     }
63 
64     @Override
writeToParcel(@onNull Parcel dest, int flags)65     public void writeToParcel(@NonNull Parcel dest, int flags) {}
66 
67     @NonNull
68     public static final Parcelable.Creator<StringSetUnion> CREATOR =
69             new Parcelable.Creator<StringSetUnion>() {
70                 @Override
71                 public StringSetUnion createFromParcel(Parcel source) {
72                     return new StringSetUnion();
73                 }
74 
75                 @Override
76                 public StringSetUnion[] newArray(int size) {
77                     return new StringSetUnion[size];
78                 }
79             };
80 }
81