The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 Esmertec AG. |
| 3 | * Copyright (C) 2008 The Android Open Source Project |
| 4 | * |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | * you may not use this file except in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, software |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | * See the License for the specific language governing permissions and |
| 15 | * limitations under the License. |
| 16 | */ |
| 17 | |
Tom Taylor | 5e342fa | 2010-01-28 15:54:15 -0800 | [diff] [blame^] | 18 | package android.database.sqlite; |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 19 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 20 | import android.content.ContentResolver; |
| 21 | import android.content.ContentValues; |
| 22 | import android.content.Context; |
| 23 | import android.database.Cursor; |
| 24 | import android.database.sqlite.SQLiteException; |
| 25 | import android.net.Uri; |
| 26 | import android.util.Log; |
| 27 | import android.widget.Toast; |
| 28 | |
Tom Taylor | 5e342fa | 2010-01-28 15:54:15 -0800 | [diff] [blame^] | 29 | /** |
| 30 | * @hide |
| 31 | */ |
| 32 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 33 | public final class SqliteWrapper { |
| 34 | private static final String TAG = "SqliteWrapper"; |
| 35 | private static final String SQLITE_EXCEPTION_DETAIL_MESSAGE |
| 36 | = "unable to open database file"; |
| 37 | |
| 38 | private SqliteWrapper() { |
| 39 | // Forbidden being instantiated. |
| 40 | } |
| 41 | |
The Android Open Source Project | 9066cfe | 2009-03-03 19:31:44 -0800 | [diff] [blame] | 42 | // FIXME: need to optimize this method. |
| 43 | private static boolean isLowMemory(SQLiteException e) { |
| 44 | return e.getMessage().equals(SQLITE_EXCEPTION_DETAIL_MESSAGE); |
| 45 | } |
| 46 | |
| 47 | public static void checkSQLiteException(Context context, SQLiteException e) { |
| 48 | if (isLowMemory(e)) { |
| 49 | Toast.makeText(context, com.android.internal.R.string.low_memory, |
| 50 | Toast.LENGTH_SHORT).show(); |
| 51 | } else { |
| 52 | throw e; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | public static Cursor query(Context context, ContentResolver resolver, Uri uri, |
| 57 | String[] projection, String selection, String[] selectionArgs, String sortOrder) { |
| 58 | try { |
| 59 | return resolver.query(uri, projection, selection, selectionArgs, sortOrder); |
| 60 | } catch (SQLiteException e) { |
| 61 | Log.e(TAG, "Catch a SQLiteException when query: ", e); |
| 62 | checkSQLiteException(context, e); |
| 63 | return null; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | public static boolean requery(Context context, Cursor cursor) { |
| 68 | try { |
| 69 | return cursor.requery(); |
| 70 | } catch (SQLiteException e) { |
| 71 | Log.e(TAG, "Catch a SQLiteException when requery: ", e); |
| 72 | checkSQLiteException(context, e); |
| 73 | return false; |
| 74 | } |
| 75 | } |
| 76 | public static int update(Context context, ContentResolver resolver, Uri uri, |
| 77 | ContentValues values, String where, String[] selectionArgs) { |
| 78 | try { |
| 79 | return resolver.update(uri, values, where, selectionArgs); |
| 80 | } catch (SQLiteException e) { |
| 81 | Log.e(TAG, "Catch a SQLiteException when update: ", e); |
| 82 | checkSQLiteException(context, e); |
| 83 | return -1; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | public static int delete(Context context, ContentResolver resolver, Uri uri, |
| 88 | String where, String[] selectionArgs) { |
| 89 | try { |
| 90 | return resolver.delete(uri, where, selectionArgs); |
| 91 | } catch (SQLiteException e) { |
| 92 | Log.e(TAG, "Catch a SQLiteException when delete: ", e); |
| 93 | checkSQLiteException(context, e); |
| 94 | return -1; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | public static Uri insert(Context context, ContentResolver resolver, |
| 99 | Uri uri, ContentValues values) { |
| 100 | try { |
| 101 | return resolver.insert(uri, values); |
| 102 | } catch (SQLiteException e) { |
| 103 | Log.e(TAG, "Catch a SQLiteException when insert: ", e); |
| 104 | checkSQLiteException(context, e); |
| 105 | return null; |
| 106 | } |
| 107 | } |
| 108 | } |