From 30813ec1c817f1bda48f9e90460e9247f6d9409e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=A2=81=E7=8E=89=E9=BE=99?= <15312879+liang-yu-long-3@user.noreply.gitee.com> Date: Thu, 15 May 2025 14:29:03 +0800 Subject: [PATCH] =?UTF-8?q?=E5=9C=A8=E5=8E=9F=E6=9C=89=E5=9F=BA=E7=A1=80?= =?UTF-8?q?=E4=B8=8A=E5=A2=9E=E5=8A=A0=E6=B3=A8=E9=87=8A=EF=BC=8C=E6=B7=BB?= =?UTF-8?q?=E5=8A=A0=E4=BA=86=E6=96=87=E4=BB=B6=E5=A4=B9=E5=8A=9F=E8=83=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/net/micode/notes/data/Contact.java | 87 ++++ .../java/net/micode/notes/data/Notes.java | 304 ++++++++++++ .../notes/data/NotesDatabaseHelper.java | 466 ++++++++++++++++++ .../net/micode/notes/data/NotesProvider.java | 366 ++++++++++++++ 4 files changed, 1223 insertions(+) create mode 100644 NotesMaster2/app/src/main/java/net/micode/notes/data/Contact.java create mode 100644 NotesMaster2/app/src/main/java/net/micode/notes/data/Notes.java create mode 100644 NotesMaster2/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java create mode 100644 NotesMaster2/app/src/main/java/net/micode/notes/data/NotesProvider.java diff --git a/NotesMaster2/app/src/main/java/net/micode/notes/data/Contact.java b/NotesMaster2/app/src/main/java/net/micode/notes/data/Contact.java new file mode 100644 index 0000000..fe3991d --- /dev/null +++ b/NotesMaster2/app/src/main/java/net/micode/notes/data/Contact.java @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 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 net.micode.notes.data; +import android.content.Context; +import android.database.Cursor; +import android.provider.ContactsContract.CommonDataKinds.Phone; +import android.provider.ContactsContract.Data; +import android.telephony.PhoneNumberUtils; +import android.util.Log; + +import java.util.HashMap; + +public class Contact { + // 定义一个静态的HashMap，用于缓存联系人信息 + private static HashMap sContactCache; + // 定义一个常量，用于打印日志 + private static final String TAG = "Contact"; + + // 定义一个常量，用于查询联系人信息的SQL语句 + // 定义一个常量，用于选择来电号码 + private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + Phone.NUMBER + // 选择来电号码等于参数 + + ",?) AND " + Data.MIMETYPE + "='" + Phone.CONTENT_ITEM_TYPE + "'" + // 选择MIME类型为Phone.CONTENT_ITEM_TYPE + + " AND " + Data.RAW_CONTACT_ID + " IN " + // 选择RAW_CONTACT_ID在phone_lookup表中min_match为+的记录中 + + "(SELECT raw_contact_id " + + " FROM phone_lookup" + + " WHERE min_match = '+')"; + + public static String getContact(Context context, String phoneNumber) { + // 如果sContactCache为空，则创建一个新的HashMap + if(sContactCache == null) { + sContactCache = new HashMap(); + } + + // 如果sContactCache中包含phoneNumber，则直接返回对应的联系人名称 + if(sContactCache.containsKey(phoneNumber)) { + return sContactCache.get(phoneNumber); + } + + // 构造查询条件，将phoneNumber中的"+"替换为PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)的返回值 + String selection = CALLER_ID_SELECTION.replace("+", + PhoneNumberUtils.toCallerIDMinMatch(phoneNumber)); + // 查询联系人数据库，获取联系人名称 + Cursor cursor = context.getContentResolver().query( + Data.CONTENT_URI, + new String [] { Phone.DISPLAY_NAME }, + selection, + new String[] { phoneNumber }, + null); + + // 如果查询结果不为空，则获取联系人名称，并放入sContactCache中 + if (cursor != null && cursor.moveToFirst()) { + try { + String name = cursor.getString(0); + sContactCache.put(phoneNumber, name); + return name; + } catch (IndexOutOfBoundsException e) { + // 如果获取联系人名称出错，则打印错误日志 + Log.e(TAG, " Cursor get string error " + e.toString()); + return null; + } finally { + // 关闭查询结果 + cursor.close(); + } + } else { + // 如果没有匹配的联系人，则打印日志 + Log.d(TAG, "No contact matched with number:" + phoneNumber); + return null; + } + } +} diff --git a/NotesMaster2/app/src/main/java/net/micode/notes/data/Notes.java b/NotesMaster2/app/src/main/java/net/micode/notes/data/Notes.java new file mode 100644 index 0000000..259d781 --- /dev/null +++ b/NotesMaster2/app/src/main/java/net/micode/notes/data/Notes.java @@ -0,0 +1,304 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 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 net.micode.notes.data; + +import android.net.Uri; +public class Notes { + // 定义Notes类的常量 + // 定义一个常量，表示Notes的授权 + public static final String AUTHORITY = "micode_notes"; + // 定义一个常量，表示Notes的标签 + public static final String TAG = "Notes"; + // 定义一个常量，表示Notes的类型为Note + public static final int TYPE_NOTE = 0; + // 定义一个常量，表示Notes的类型为Folder + public static final int TYPE_FOLDER = 1; + // 定义一个常量，表示Notes的类型为System + public static final int TYPE_SYSTEM = 2; + + /** + * Following IDs are system folders' identifiers + * {@link Notes#ID_ROOT_FOLDER } is default folder + * {@link Notes#ID_TEMPARAY_FOLDER } is for notes belonging no folder + * {@link Notes#ID_CALL_RECORD_FOLDER} is to store call records + */ + // 根文件夹的ID + public static final int ID_ROOT_FOLDER = 0; + // 临时文件夹的ID + public static final int ID_TEMPARAY_FOLDER = -1; + // 呼叫记录文件夹的ID + public static final int ID_CALL_RECORD_FOLDER = -2; + // 回收站文件夹的ID + public static final int ID_TRASH_FOLER = -3; + + // 定义Intent的额外参数 + public static final String INTENT_EXTRA_ALERT_DATE = "net.micode.notes.alert_date"; + public static final String INTENT_EXTRA_BACKGROUND_ID = "net.micode.notes.background_color_id"; + public static final String INTENT_EXTRA_WIDGET_ID = "net.micode.notes.widget_id"; + public static final String INTENT_EXTRA_WIDGET_TYPE = "net.micode.notes.widget_type"; + public static final String INTENT_EXTRA_FOLDER_ID = "net.micode.notes.folder_id"; + public static final String INTENT_EXTRA_CALL_DATE = "net.micode.notes.call_date"; + + // 定义Widget的类型 + public static final int TYPE_WIDGET_INVALIDE = -1; + public static final int TYPE_WIDGET_2X = 0; + public static final int TYPE_WIDGET_4X = 1; + + // 定义DataConstants类 + public static class DataConstants { + public static final String NOTE = TextNote.CONTENT_ITEM_TYPE; + public static final String CALL_NOTE = CallNote.CONTENT_ITEM_TYPE; + } + + /** + * Uri to query all notes and folders + */ + public static final Uri CONTENT_NOTE_URI = Uri.parse("content://" + AUTHORITY + "/note"); + + /** + * Uri to query data + */ + public static final Uri CONTENT_DATA_URI = Uri.parse("content://" + AUTHORITY + "/data"); + + // 定义NoteColumns接口 + public interface NoteColumns { + /** + * The unique ID for a row + *

Type: INTEGER (long)

+ */ + public static final String ID = "_id"; + + /** + * The parent's id for note or folder + *

Type: INTEGER (long)

+ */ + public static final String PARENT_ID = "parent_id"; + + /** + * Created data for note or folder + *

Type: INTEGER (long)

+ */ + public static final String CREATED_DATE = "created_date"; + + /** + * Latest modified date + *

Type: INTEGER (long)

+ */ + public static final String MODIFIED_DATE = "modified_date"; + + + /** + * Alert date + *

Type: INTEGER (long)

+ */ + public static final String ALERTED_DATE = "alert_date"; + + /** + * Folder's name or text content of note + *

Type: TEXT

+ */ + public static final String SNIPPET = "snippet"; + + /** + * Note's widget id + *

Type: INTEGER (long)

+ */ + public static final String WIDGET_ID = "widget_id"; + + /** + * Note's widget type + *

Type: INTEGER (long)

+ */ + public static final String WIDGET_TYPE = "widget_type"; + + /** + * Note's background color's id + *

Type: INTEGER (long)

+ */ + public static final String BG_COLOR_ID = "bg_color_id"; + + /** + * For text note, it doesn't has attachment, for multi-media + * note, it has at least one attachment + *

Type: INTEGER

+ */ + public static final String HAS_ATTACHMENT = "has_attachment"; + + /** + * Folder's count of notes + *

Type: INTEGER (long)

+ */ + public static final String NOTES_COUNT = "notes_count"; + + /** + * The file type: folder or note + *

Type: INTEGER

+ */ + public static final String TYPE = "type"; + + /** + * The last sync id + *

Type: INTEGER (long)

+ */ + public static final String SYNC_ID = "sync_id"; + + /** + * Sign to indicate local modified or not + *

Type: INTEGER

+ */ + public static final String LOCAL_MODIFIED = "local_modified"; + + /** + * Original parent id before moving into temporary folder + *

Type : INTEGER

+ */ + public static final String ORIGIN_PARENT_ID = "origin_parent_id"; + + /** + * The gtask id + *

Type : TEXT

+ */ + public static final String GTASK_ID = "gtask_id"; + + /** + * The version code + *

Type : INTEGER (long)

+ */ + public static final String VERSION = "version"; + } + + // 定义DataColumns接口 + public interface DataColumns { + /** + * The unique ID for a row + *

Type: INTEGER (long)

+ */ + public static final String ID = "_id"; + + /** + * The MIME type of the item represented by this row. + *

Type: Text

+ */ + public static final String MIME_TYPE = "mime_type"; + + /** + * The reference id to note that this data belongs to + *

Type: INTEGER (long)

+ */ + public static final String NOTE_ID = "note_id"; + + /** + * Created data for note or folder + *

Type: INTEGER (long)

+ */ + public static final String CREATED_DATE = "created_date"; + + /** + * Latest modified date + *

Type: INTEGER (long)

+ */ + public static final String MODIFIED_DATE = "modified_date"; + + /** + * Data's content + *

Type: TEXT

+ */ + public static final String CONTENT = "content"; + + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * integer data type + *

Type: INTEGER

+ */ + public static final String DATA1 = "data1"; + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * integer data type + *

Type: INTEGER

+ */ + public static final String DATA2 = "data2"; + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * TEXT data type + *

Type: TEXT

+ */ + public static final String DATA3 = "data3"; + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * TEXT data type + *

Type: TEXT

+ */ + public static final String DATA4 = "data4"; + + /** + * Generic data column, the meaning is {@link #MIMETYPE} specific, used for + * TEXT data type + *

Type: TEXT

+ */ + public static final String DATA5 = "data5"; + } + + // 定义TextNote类 + public static final class TextNote implements DataColumns { + /** + * Mode to indicate the text in check list mode or not + *

Type: Integer 1:check list mode 0: normal mode

+ */ + public static final String MODE = DATA1; + + // 检查列表模式 + public static final int MODE_CHECK_LIST = 1; + + // 内容类型 + public static final String CONTENT_TYPE = "vnd.android.cursor.dir/text_note"; + + // 内容项类型 + public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/text_note"; + + // 内容URI + public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/text_note"); + } + + // 定义CallNote类 + public static final class CallNote implements DataColumns { + /** + * Call date for this record + *

Type: INTEGER (long)

+ */ + public static final String CALL_DATE = DATA1; + + /** + * Phone number for this record + *

Type: TEXT

+ */ + // 定义一个常量，表示电话号码 + public static final String PHONE_NUMBER = DATA3; + + // 定义一个常量，表示内容类型 + public static final String CONTENT_TYPE = "vnd.android.cursor.dir/call_note"; + + // 定义一个常量，表示内容项类型 + public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/call_note"; + + // 定义一个常量，表示内容URI + public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/call_note"); + } +} diff --git a/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java b/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java new file mode 100644 index 0000000..680bb0a --- /dev/null +++ b/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesDatabaseHelper.java @@ -0,0 +1,466 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 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 net.micode.notes.data; + +import android.content.ContentValues; +import android.content.Context; +import android.database.sqlite.SQLiteDatabase; +import android.database.sqlite.SQLiteOpenHelper; +import android.util.Log; + +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.DataConstants; +import net.micode.notes.data.Notes.NoteColumns; + + +public class NotesDatabaseHelper extends SQLiteOpenHelper { + // 数据库名称 + private static final String DB_NAME = "note.db"; + + // 数据库版本号 + private static final int DB_VERSION = 4; + + // 定义数据库中的表名 + public interface TABLE { + // 表名：note + public static final String NOTE = "note"; + + // 表名：data + public static final String DATA = "data"; + } + + // 定义一个常量，用于标识数据库帮助类的标签 + private static final String TAG = "NotesDatabaseHelper"; + + // 定义一个静态变量，用于保存数据库帮助类的实例 + private static NotesDatabaseHelper mInstance; + + // 定义一个常量，用于保存创建笔记表的SQL语句 + private static final String CREATE_NOTE_TABLE_SQL = + "CREATE TABLE " + TABLE.NOTE + "(" + + // 定义笔记表的ID列，类型为INTEGER，为主键 + NoteColumns.ID + " INTEGER PRIMARY KEY," + + // 定义笔记表的父ID列，类型为INTEGER，默认值为0 + NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的提醒日期列，类型为INTEGER，默认值为0 + NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的背景颜色ID列，类型为INTEGER，默认值为0 + NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的创建日期列，类型为INTEGER，默认值为当前时间戳 + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + // 定义笔记表是否有附件列，类型为INTEGER，默认值为0 + NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的修改日期列，类型为INTEGER，默认值为当前时间戳 + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + // 定义笔记表的笔记数量列，类型为INTEGER，默认值为0 + NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的摘要列，类型为TEXT，默认值为空字符串 + NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," + + // 定义笔记表的类型列，类型为INTEGER，默认值为0 + NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的Widget ID列，类型为INTEGER，默认值为0 + NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的Widget类型列，类型为INTEGER，默认值为-1 + NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," + + // 定义笔记表的同步ID列，类型为INTEGER，默认值为0 + NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的本地修改列，类型为INTEGER，默认值为0 + NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的原始父ID列，类型为INTEGER，默认值为0 + NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义笔记表的GTask ID列，类型为TEXT，默认值为空字符串 + NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," + + // 定义笔记表的版本列，类型为INTEGER，默认值为0 + NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" + + ")"; + + // 定义创建数据表的SQL语句 + private static final String CREATE_DATA_TABLE_SQL = + "CREATE TABLE " + TABLE.DATA + "(" + + // 定义ID列，类型为INTEGER，为主键 + DataColumns.ID + " INTEGER PRIMARY KEY," + + // 定义MIME_TYPE列，类型为TEXT，不能为空 + DataColumns.MIME_TYPE + " TEXT NOT NULL," + + // 定义NOTE_ID列，类型为INTEGER，不能为空，默认值为0 + DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," + + // 定义CREATED_DATE列，类型为INTEGER，不能为空，默认值为当前时间戳 + NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + // 定义MODIFIED_DATE列，类型为INTEGER，不能为空，默认值为当前时间戳 + NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," + + // 定义CONTENT列，类型为TEXT，不能为空，默认值为空字符串 + DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," + + // 定义DATA1列，类型为INTEGER + DataColumns.DATA1 + " INTEGER," + + // 定义DATA2列，类型为INTEGER + DataColumns.DATA2 + " INTEGER," + + // 定义DATA3列，类型为TEXT，不能为空，默认值为空字符串 + DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," + + // 定义DATA4列，类型为TEXT，不能为空，默认值为空字符串 + DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," + + // 定义DATA5列，类型为TEXT，不能为空，默认值为空字符串 + DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" + + ")"; + + // 创建一个名为note_id_index的索引，用于在DATA表中根据NOTE_ID进行查询 + private static final String CREATE_DATA_NOTE_ID_INDEX_SQL = + "CREATE INDEX IF NOT EXISTS note_id_index ON " + + TABLE.DATA + "(" + DataColumns.NOTE_ID + ");"; + + /** + * Increase folder's note count when move note to the folder + */ + // 创建一个名为increase_folder_count_on_update的触发器，用于在NOTE表中更新PARENT_ID时，增加对应文件夹的note count + // 创建一个触发器，在更新Note表的PARENT_ID字段后，增加对应文件夹的NOTES_COUNT字段 + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_update "+ + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * Decrease folder's note count when move note from folder + */ + // 创建一个触发器，在更新Note表的PARENT_ID字段后，减少对应文件夹的NOTES_COUNT字段 + // 创建一个触发器，在更新Note表的PARENT_ID字段后，减少对应文件夹的NOTES_COUNT字段 + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_update " + + " AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0" + ";" + + " END"; + + /** + * Increase folder's note count when insert new note to the folder + */ + // 创建一个触发器，在插入笔记后，增加父文件夹的笔记数量 + private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER = + "CREATE TRIGGER increase_folder_count_on_insert " + + " AFTER INSERT ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" + + " WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" + + " END"; + + /** + * Decrease folder's note count when delete note from the folder + */ + // 创建一个触发器，在删除笔记后，减少父文件夹中的笔记数量 + private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER = + "CREATE TRIGGER decrease_folder_count_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN " + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" + + " WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID + + " AND " + NoteColumns.NOTES_COUNT + ">0;" + + " END"; + + /** + * Update note's content when insert data with type {@link DataConstants#NOTE} + */ + // 创建一个触发器，在插入数据后更新笔记内容 + private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER = + "CREATE TRIGGER update_note_content_on_insert " + + " AFTER INSERT ON " + TABLE.DATA + // 在数据表上创建触发器 + " WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + // 当插入的数据类型为笔记时 + " BEGIN" + + " UPDATE " + TABLE.NOTE + // 更新笔记表 + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + // 将新插入的数据内容设置为笔记的片段 + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + // 根据笔记ID更新笔记表 + " END"; + + /** + * Update note's content when data with {@link DataConstants#NOTE} type has changed + */ + // 创建一个名为update_note_content_on_update的触发器，在更新DATA表后执行 + private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER = + "CREATE TRIGGER update_note_content_on_update " + + " AFTER UPDATE ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT + + " WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * Update note's content when data with {@link DataConstants#NOTE} type has deleted + */ + private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER = + "CREATE TRIGGER update_note_content_on_delete " + + " AFTER delete ON " + TABLE.DATA + + " WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.SNIPPET + "=''" + + " WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" + + " END"; + + /** + * Delete datas belong to note which has been deleted + */ + // 创建一个名为delete_data_on_delete的触发器，在删除note表中的数据后，删除data表中的数据 + private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER = + "CREATE TRIGGER delete_data_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.DATA + + " WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * Delete notes belong to folder which has been deleted + */ + // 创建一个触发器，在删除笔记时，删除其子笔记 + private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER = + "CREATE TRIGGER folder_delete_notes_on_delete " + + " AFTER DELETE ON " + TABLE.NOTE + + " BEGIN" + + " DELETE FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + /** + * Move notes belong to folder which has been moved to trash folder + */ + // 创建一个触发器，当更新NOTE表时，如果新父ID等于垃圾文件夹ID，则更新NOTE表中的父ID为垃圾文件夹ID + private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER = + "CREATE TRIGGER folder_move_notes_on_trash " + + " AFTER UPDATE ON " + TABLE.NOTE + + " WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " BEGIN" + + " UPDATE " + TABLE.NOTE + + " SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER + + " WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" + + " END"; + + public NotesDatabaseHelper(Context context) { + super(context, DB_NAME, null, DB_VERSION); + } + + /** + * 创建note表 + */ + public void createNoteTable(SQLiteDatabase db) { + // 执行创建note表的SQL语句 + db.execSQL(CREATE_NOTE_TABLE_SQL); + // 重新创建note表的触发器 + reCreateNoteTableTriggers(db); + // 创建系统文件夹 + createSystemFolder(db); + // 打印日志，note表已创建 + Log.d(TAG, "note table has been created"); + } + + /** + * 重新创建note表的触发器 + */ + // 重新创建Note表触发器 + private void reCreateNoteTableTriggers(SQLiteDatabase db) { + // 删除increase_folder_count_on_update触发器 + db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_update"); + // 删除decrease_folder_count_on_update触发器 + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_update"); + // 删除decrease_folder_count_on_delete触发器 + db.execSQL("DROP TRIGGER IF EXISTS decrease_folder_count_on_delete"); + // 删除delete_data_on_delete触发器 + db.execSQL("DROP TRIGGER IF EXISTS delete_data_on_delete"); + // 删除increase_folder_count_on_insert触发器 + db.execSQL("DROP TRIGGER IF EXISTS increase_folder_count_on_insert"); + // 删除folder_delete_notes_on_delete触发器 + db.execSQL("DROP TRIGGER IF EXISTS folder_delete_notes_on_delete"); + // 删除folder_move_notes_on_trash触发器 + db.execSQL("DROP TRIGGER IF EXISTS folder_move_notes_on_trash"); + + // 创建increase_folder_count_on_update触发器 + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); + // 创建decrease_folder_count_on_update触发器 + db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER); + // 创建decrease_folder_count_on_delete触发器 + db.execSQL(NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER); + // 创建delete_data_on_delete触发器 + db.execSQL(NOTE_DELETE_DATA_ON_DELETE_TRIGGER); + // 创建increase_folder_count_on_insert触发器 + db.execSQL(NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER); + // 创建folder_delete_notes_on_delete触发器 + db.execSQL(FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER); + // 创建folder_move_notes_on_trash触发器 + db.execSQL(FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER); + } + + /** + * 创建系统文件夹 + */ + // 创建系统文件夹 + private void createSystemFolder(SQLiteDatabase db) { + ContentValues values = new ContentValues(); + + + // 插入通话记录文件夹 + values.put(NoteColumns.ID, Notes.ID_CALL_RECORD_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + + // 清空values + values.clear(); + // 插入根文件夹 + values.put(NoteColumns.ID, Notes.ID_ROOT_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + /** + * temporary folder which is used for moving note + */ + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TEMPARAY_FOLDER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + + /** + * create trash folder + */ + values.clear(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + /** + * 创建data表 + */ + public void createDataTable(SQLiteDatabase db) { + db.execSQL(CREATE_DATA_TABLE_SQL); + reCreateDataTableTriggers(db); + db.execSQL(CREATE_DATA_NOTE_ID_INDEX_SQL); + Log.d(TAG, "data table has been created"); + } + + /** + * 重新创建data表的触发器 + */ + private void reCreateDataTableTriggers(SQLiteDatabase db) { + // 删除原有的触发器 + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_update"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_content_on_delete"); + + // 创建新的触发器 + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER); + db.execSQL(DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER); + } + + /** + * 获取NotesDatabaseHelper实例 + */ + // 获取NotesDatabaseHelper实例 + static synchronized NotesDatabaseHelper getInstance(Context context) { + // 如果mInstance为空，则创建一个新的NotesDatabaseHelper实例 + if (mInstance == null) { + mInstance = new NotesDatabaseHelper(context); + } + // 返回mInstance + return mInstance; + } + + // 创建数据库 + @Override + public void onCreate(SQLiteDatabase db) { + // 创建Note表 + createNoteTable(db); + // 创建Data表 + createDataTable(db); + } + + @Override + public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { + // 定义两个布尔变量，用于判断是否需要重新创建触发器和是否跳过v2版本 + boolean reCreateTriggers = false; + boolean skipV2 = false; + + if (oldVersion == 1) { + upgradeToV2(db); + skipV2 = true; // this upgrade including the upgrade from v2 to v3 + oldVersion++; + } + + if (oldVersion == 2 && !skipV2) { + upgradeToV3(db); + reCreateTriggers = true; + oldVersion++; + } + + if (oldVersion == 3) { + upgradeToV4(db); + oldVersion++; + } + + if (reCreateTriggers) { + reCreateNoteTableTriggers(db); + reCreateDataTableTriggers(db); + } + + if (oldVersion != newVersion) { + throw new IllegalStateException("Upgrade notes database to version " + newVersion + + "fails"); + } + } + + /** + * 升级到v2版本 + */ + private void upgradeToV2(SQLiteDatabase db) { + db.execSQL("DROP TABLE IF EXISTS " + TABLE.NOTE); + db.execSQL("DROP TABLE IF EXISTS " + TABLE.DATA); + createNoteTable(db); + createDataTable(db); + } + + /** + * 升级到v3版本 + */ + private void upgradeToV3(SQLiteDatabase db) { + // drop unused triggers + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_insert"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_delete"); + db.execSQL("DROP TRIGGER IF EXISTS update_note_modified_date_on_update"); + // add a column for gtask id + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.GTASK_ID + + " TEXT NOT NULL DEFAULT ''"); + // add a trash system folder + ContentValues values = new ContentValues(); + values.put(NoteColumns.ID, Notes.ID_TRASH_FOLER); + values.put(NoteColumns.TYPE, Notes.TYPE_SYSTEM); + db.insert(TABLE.NOTE, null, values); + } + + /** + * 升级到v4版本 + */ + private void upgradeToV4(SQLiteDatabase db) { + db.execSQL("ALTER TABLE " + TABLE.NOTE + " ADD COLUMN " + NoteColumns.VERSION + + " INTEGER NOT NULL DEFAULT 0"); + } +} diff --git a/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesProvider.java b/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesProvider.java new file mode 100644 index 0000000..4837c4a --- /dev/null +++ b/NotesMaster2/app/src/main/java/net/micode/notes/data/NotesProvider.java @@ -0,0 +1,366 @@ +/* + * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net) + * + * 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 net.micode.notes.data; + + +import android.app.SearchManager; +import android.content.ContentProvider; +import android.content.ContentUris; +import android.content.ContentValues; +import android.content.Intent; +import android.content.UriMatcher; +import android.database.Cursor; +import android.database.sqlite.SQLiteDatabase; +import android.net.Uri; +import android.text.TextUtils; +import android.util.Log; + +import net.micode.notes.R; +import net.micode.notes.data.Notes.DataColumns; +import net.micode.notes.data.Notes.NoteColumns; +import net.micode.notes.data.NotesDatabaseHelper.TABLE; + + +public class NotesProvider extends ContentProvider { + private static final UriMatcher mMatcher; + + private NotesDatabaseHelper mHelper; + + // 定义TAG常量，用于日志输出 + private static final String TAG = "NotesProvider"; + + // 定义URI常量，用于匹配URI + private static final int URI_NOTE = 1; + private static final int URI_NOTE_ITEM = 2; + private static final int URI_DATA = 3; + private static final int URI_DATA_ITEM = 4; + + private static final int URI_SEARCH = 5; + private static final int URI_SEARCH_SUGGEST = 6; + + // 静态代码块，初始化UriMatcher + static { + mMatcher = new UriMatcher(UriMatcher.NO_MATCH); + mMatcher.addURI(Notes.AUTHORITY, "note", URI_NOTE); + mMatcher.addURI(Notes.AUTHORITY, "note/#", URI_NOTE_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "data", URI_DATA); + mMatcher.addURI(Notes.AUTHORITY, "data/#", URI_DATA_ITEM); + mMatcher.addURI(Notes.AUTHORITY, "search", URI_SEARCH); + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, URI_SEARCH_SUGGEST); + mMatcher.addURI(Notes.AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", URI_SEARCH_SUGGEST); + } + + /** + * x'0A' represents the '\n' character in sqlite. For title and content in the search result, + * we will trim '\n' and white space in order to show more information. + */ + // 定义搜索结果的投影 + private static final String NOTES_SEARCH_PROJECTION = NoteColumns.ID + "," + // 搜索结果的ID + + NoteColumns.ID + " AS " + SearchManager.SUGGEST_COLUMN_INTENT_EXTRA_DATA + "," + // 搜索结果的文本1 + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_1 + "," + // 搜索结果的文本2 + + "TRIM(REPLACE(" + NoteColumns.SNIPPET + ", x'0A','')) AS " + SearchManager.SUGGEST_COLUMN_TEXT_2 + "," + // 搜索结果的图标 + + R.drawable.search_result + " AS " + SearchManager.SUGGEST_COLUMN_ICON_1 + "," + // 搜索结果的Intent Action + + "'" + Intent.ACTION_VIEW + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_ACTION + "," + // 搜索结果的Intent Data + + "'" + Notes.TextNote.CONTENT_TYPE + "' AS " + SearchManager.SUGGEST_COLUMN_INTENT_DATA; + + // 定义一个静态字符串，用于查询笔记片段 + private static String NOTES_SNIPPET_SEARCH_QUERY = "SELECT " + NOTES_SEARCH_PROJECTION + + " FROM " + TABLE.NOTE + + " WHERE " + NoteColumns.SNIPPET + " LIKE ?" + + " AND " + NoteColumns.PARENT_ID + "<>" + Notes.ID_TRASH_FOLER + + " AND " + NoteColumns.TYPE + "=" + Notes.TYPE_NOTE; + + // 创建数据库 + @Override + public boolean onCreate() { + // 获取NotesDatabaseHelper实例 + mHelper = NotesDatabaseHelper.getInstance(getContext()); + return true; + } + + @Override + public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, + String sortOrder) { + Cursor c = null; + SQLiteDatabase db = mHelper.getReadableDatabase(); + String id = null; + switch (mMatcher.match(uri)) { + case URI_NOTE: + c = db.query(TABLE.NOTE, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_NOTE_ITEM: + id = uri.getPathSegments().get(1); + c = db.query(TABLE.NOTE, projection, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_DATA: + c = db.query(TABLE.DATA, projection, selection, selectionArgs, null, null, + sortOrder); + break; + case URI_DATA_ITEM: + id = uri.getPathSegments().get(1); + c = db.query(TABLE.DATA, projection, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs, null, null, sortOrder); + break; + case URI_SEARCH: + case URI_SEARCH_SUGGEST: + if (sortOrder != null || projection != null) { + throw new IllegalArgumentException( + "do not specify sortOrder, selection, selectionArgs, or projection" + "with this query"); + } + + String searchString = null; + if (mMatcher.match(uri) == URI_SEARCH_SUGGEST) { + if (uri.getPathSegments().size() > 1) { + searchString = uri.getPathSegments().get(1); + } + } else { + searchString = uri.getQueryParameter("pattern"); + } + + if (TextUtils.isEmpty(searchString)) { + return null; + } + + try { + searchString = String.format("%%%s%%", searchString); + c = db.rawQuery(NOTES_SNIPPET_SEARCH_QUERY, + new String[] { searchString }); + } catch (IllegalStateException ex) { + Log.e(TAG, "got exception: " + ex.toString()); + } + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + if (c != null) { + c.setNotificationUri(getContext().getContentResolver(), uri); + } + return c; + } + + @Override + public Uri insert(Uri uri, ContentValues values) { + SQLiteDatabase db = mHelper.getWritableDatabase(); + long dataId = 0, noteId = 0, insertedId = 0; + switch (mMatcher.match(uri)) { + case URI_NOTE: + insertedId = noteId = db.insert(TABLE.NOTE, null, values); + break; + case URI_DATA: + if (values.containsKey(DataColumns.NOTE_ID)) { + noteId = values.getAsLong(DataColumns.NOTE_ID); + } else { + Log.d(TAG, "Wrong data format without note id:" + values.toString()); + } + insertedId = dataId = db.insert(TABLE.DATA, null, values); + break; + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + // Notify the note uri + if (noteId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_NOTE_URI, noteId), null); + } + + // Notify the data uri + if (dataId > 0) { + getContext().getContentResolver().notifyChange( + ContentUris.withAppendedId(Notes.CONTENT_DATA_URI, dataId), null); + } + + return ContentUris.withAppendedId(uri, insertedId); + } + + @Override + public int delete(Uri uri, String selection, String[] selectionArgs) { + // 初始化删除的记录数 + int count = 0; + // 初始化ID + String id = null; + // 获取可写的数据库 + SQLiteDatabase db = mHelper.getWritableDatabase(); + // 初始化删除数据标志 + boolean deleteData = false; + // 根据URI匹配对应的操作 + switch (mMatcher.match(uri)) { + case URI_NOTE: + // 添加删除条件 + selection = "(" + selection + ") AND " + NoteColumns.ID + ">0 "; + // 删除符合条件的记录 + count = db.delete(TABLE.NOTE, selection, selectionArgs); + break; + case URI_NOTE_ITEM: + // 获取URI中的ID + id = uri.getPathSegments().get(1); + /** + * ID that smaller than 0 is system folder which is not allowed to + * trash + */ + // 将id转换为long类型 + long noteId = Long.valueOf(id); + // 如果noteId小于等于0，则跳出循环 + if (noteId <= 0) { + break; + } + // 删除指定id的note + count = db.delete(TABLE.NOTE, + NoteColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + break; + case URI_DATA: + // 删除所有data + count = db.delete(TABLE.DATA, selection, selectionArgs); + // 标记删除data + deleteData = true; + break; + case URI_DATA_ITEM: + // 获取uri的路径段，获取第二个路径段作为id + id = uri.getPathSegments().get(1); + // 删除指定id的data + count = db.delete(TABLE.DATA, + DataColumns.ID + "=" + id + parseSelection(selection), selectionArgs); + // 标记删除data + deleteData = true; + break; + default: + // 抛出异常，未知uri + throw new IllegalArgumentException("Unknown URI " + uri); + } + // 如果删除了数据 + if (count > 0) { + // 如果删除了data，则通知content resolver + if (deleteData) { + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + // 通知content resolver + getContext().getContentResolver().notifyChange(uri, null); + } + // 返回删除的条数 + return count; + } + + @Override + public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { + // 定义更新条数 + int count = 0; + // 定义id + String id = null; + // 获取可写数据库 + SQLiteDatabase db = mHelper.getWritableDatabase(); + // 定义是否更新数据 + boolean updateData = false; + // 根据uri匹配对应的操作 + switch (mMatcher.match(uri)) { + // 更新note表 + case URI_NOTE: + // 增加note版本号 + increaseNoteVersion(-1, selection, selectionArgs); + // 更新数据 + count = db.update(TABLE.NOTE, values, selection, selectionArgs); + break; + // 更新note_item表 + case URI_NOTE_ITEM: + // 获取id + id = uri.getPathSegments().get(1); + // 增加note版本号 + increaseNoteVersion(Long.valueOf(id), selection, selectionArgs); + // 更新数据 + count = db.update(TABLE.NOTE, values, NoteColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + break; + // 更新data表 + case URI_DATA: + // 更新数据 + count = db.update(TABLE.DATA, values, selection, selectionArgs); + // 标记更新数据 + updateData = true; + break; + // 更新data_item表 + case URI_DATA_ITEM: + // 获取id + id = uri.getPathSegments().get(1); + // 更新数据 + count = db.update(TABLE.DATA, values, DataColumns.ID + "=" + id + + parseSelection(selection), selectionArgs); + // 标记更新数据 + updateData = true; + break; + // 未知uri + default: + throw new IllegalArgumentException("Unknown URI " + uri); + } + + // 如果count大于0 + if (count > 0) { + // 如果updateData为true + if (updateData) { + // 通知ContentResolver，Notes.CONTENT_NOTE_URI发生了变化 + getContext().getContentResolver().notifyChange(Notes.CONTENT_NOTE_URI, null); + } + // 通知ContentResolver，uri发生了变化 + getContext().getContentResolver().notifyChange(uri, null); + } + // 返回count + return count; + } + + // 解析selection字符串 + private String parseSelection(String selection) { + // 如果selection不为空，则返回" AND (" + selection + ')'，否则返回空字符串 + return (!TextUtils.isEmpty(selection) ? " AND (" + selection + ')' : ""); + } + + private void increaseNoteVersion(long id, String selection, String[] selectionArgs) { + StringBuilder sql = new StringBuilder(120); + sql.append("UPDATE "); + sql.append(TABLE.NOTE); + sql.append(" SET "); + sql.append(NoteColumns.VERSION); + sql.append("=" + NoteColumns.VERSION + "+1 "); + + if (id > 0 || !TextUtils.isEmpty(selection)) { + sql.append(" WHERE "); + } + if (id > 0) { + sql.append(NoteColumns.ID + "=" + String.valueOf(id)); + } + if (!TextUtils.isEmpty(selection)) { + String selectString = id > 0 ? parseSelection(selection) : selection; + for (String args : selectionArgs) { + selectString = selectString.replaceFirst("\\?", args); + } + sql.append(selectString); + } + + mHelper.getWritableDatabase().execSQL(sql.toString()); + } + + @Override + public String getType(Uri uri) { + // TODO Auto-generated method stub + return null; + } + +}