Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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 com.android.gallery3d.util; |
| 17 | |
| 18 | import com.android.gallery3d.common.Utils; |
| 19 | |
| 20 | public class UpdateHelper { |
| 21 | |
| 22 | private boolean mUpdated = false; |
| 23 | |
| 24 | public int update(int original, int update) { |
| 25 | if (original != update) { |
| 26 | mUpdated = true; |
| 27 | original = update; |
| 28 | } |
| 29 | return original; |
| 30 | } |
| 31 | |
| 32 | public long update(long original, long update) { |
| 33 | if (original != update) { |
| 34 | mUpdated = true; |
| 35 | original = update; |
| 36 | } |
| 37 | return original; |
| 38 | } |
| 39 | |
| 40 | public double update(double original, double update) { |
| 41 | if (original != update) { |
| 42 | mUpdated = true; |
| 43 | original = update; |
| 44 | } |
| 45 | return original; |
| 46 | } |
| 47 | |
Owen Lin | a2fba68 | 2011-08-17 22:07:43 +0800 | [diff] [blame] | 48 | public <T> T update(T original, T update) { |
| 49 | if (!Utils.equals(original, update)) { |
| 50 | mUpdated = true; |
| 51 | original = update; |
| 52 | } |
| 53 | return original; |
| 54 | } |
| 55 | |
| 56 | public boolean isUpdated() { |
| 57 | return mUpdated; |
| 58 | } |
| 59 | } |