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 com.android.messaging.datamodel;
17 
18 import android.database.sqlite.SQLiteDatabase;
19 
20 import com.android.messaging.util.Assert;
21 import com.android.messaging.util.LogUtil;
22 
23 public class DatabaseUpgradeHelper {
24     private static final String TAG = LogUtil.BUGLE_DATABASE_TAG;
25 
doOnUpgrade(final SQLiteDatabase db, final int oldVersion, final int newVersion)26     public void doOnUpgrade(final SQLiteDatabase db, final int oldVersion, final int newVersion) {
27         Assert.isTrue(newVersion >= oldVersion);
28         if (oldVersion == newVersion) {
29             return;
30         }
31 
32         LogUtil.i(TAG, "Database upgrade started from version " + oldVersion + " to " + newVersion);
33 
34         // Add future upgrade code here
35     }
36 
onDowngrade(final SQLiteDatabase db, final int oldVersion, final int newVersion)37     public void onDowngrade(final SQLiteDatabase db, final int oldVersion, final int newVersion) {
38         DatabaseHelper.rebuildTables(db);
39         LogUtil.e(TAG, "Database downgrade requested for version " +
40                 oldVersion + " version " + newVersion + ", forcing db rebuild!");
41     }
42 }
43