1 /* 2 * Copyright (C) 2015 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 package android.databinding; 17 18 /** 19 * Utility class for managing ObservableMap callbacks. 20 */ 21 public class MapChangeRegistry 22 extends CallbackRegistry<ObservableMap.OnMapChangedCallback, ObservableMap, Object> { 23 24 private static NotifierCallback<ObservableMap.OnMapChangedCallback, ObservableMap, Object> NOTIFIER_CALLBACK = 25 new NotifierCallback<ObservableMap.OnMapChangedCallback, ObservableMap, Object>() { 26 @Override 27 public void onNotifyCallback(ObservableMap.OnMapChangedCallback callback, ObservableMap sender, 28 int arg, Object arg2) { 29 callback.onMapChanged(sender, arg2); 30 } 31 }; 32 MapChangeRegistry()33 public MapChangeRegistry() { 34 super(NOTIFIER_CALLBACK); 35 } 36 37 /** 38 * Notifies registered callbacks that an element has been added, removed, or changed. 39 * 40 * @param sender The map that has changed. 41 * @param key The key of the element that changed. 42 */ notifyChange(ObservableMap sender, Object key)43 public void notifyChange(ObservableMap sender, Object key) { 44 notifyCallbacks(sender, 0, key); 45 } 46 } 47