1 /* 2 * Copyright (C) 2017 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 androidx.lifecycle; 18 19 import androidx.annotation.NonNull; 20 21 /** 22 * A scope that owns {@link ViewModelStore}. 23 * <p> 24 * A responsibility of an implementation of this interface is to retain owned ViewModelStore 25 * during the configuration changes and call {@link ViewModelStore#clear()}, when this scope is 26 * going to be destroyed. 27 */ 28 @SuppressWarnings("WeakerAccess") 29 public interface ViewModelStoreOwner { 30 /** 31 * Returns owned {@link ViewModelStore} 32 * 33 * @return a {@code ViewModelStore} 34 */ 35 @NonNull 36 ViewModelStore getViewModelStore(); 37 } 38