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 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 } 60
