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 com.android.queryable.collections;
18 
19 import com.android.queryable.queries.Query;
20 
21 import java.util.Set;
22 
23 /**
24  * A {@link Set} which can also have its contents queried.
25  */
26 public interface QueryableSet<E, F extends Query<E>, G extends QueryableSet<E, F, ?>> extends Set<E> {
27 
28     /**
29      * Query the data.
30      */
query()31     QueryableSetQuery<E, F, G> query();
32 }
33