| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.gallery3d.app; |
| |
| import java.util.HashMap; |
| |
| public class TransitionStore { |
| private HashMap<Object, Object> mStorage = new HashMap<Object, Object>(); |
| |
| public void put(Object key, Object value) { |
| mStorage.put(key, value); |
| } |
| |
| public <T> void putIfNotPresent(Object key, T valueIfNull) { |
| mStorage.put(key, get(key, valueIfNull)); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> T get(Object key) { |
| return (T) mStorage.get(key); |
| } |
| |
| @SuppressWarnings("unchecked") |
| public <T> T get(Object key, T valueIfNull) { |
| T value = (T) mStorage.get(key); |
| return value == null ? valueIfNull : value; |
| } |
| |
| public void clear() { |
| mStorage.clear(); |
| } |
| } |