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@ -38,11 +38,18 @@ import org.json.JSONObject;
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import java.util.ArrayList;
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/**
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* 数据库笔记处理类,用于管理笔记的完整数据结构
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* 包括笔记基本信息和关联的数据内容,提供与ContentResolver的交互
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*/
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public class SqlNote {
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// 日志标签
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private static final String TAG = SqlNote.class.getSimpleName();
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// 无效ID常量
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private static final int INVALID_ID = -99999;
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// 笔记查询投影数组
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public static final String[] PROJECTION_NOTE = new String[] {
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NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
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NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
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@ -52,76 +59,115 @@ public class SqlNote {
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NoteColumns.VERSION
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};
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// 投影数组中ID列的索引
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public static final int ID_COLUMN = 0;
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// 投影数组中提醒日期列的索引
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public static final int ALERTED_DATE_COLUMN = 1;
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// 投影数组中背景颜色ID列的索引
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public static final int BG_COLOR_ID_COLUMN = 2;
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// 投影数组中创建日期列的索引
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public static final int CREATED_DATE_COLUMN = 3;
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// 投影数组中是否有附件列的索引
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public static final int HAS_ATTACHMENT_COLUMN = 4;
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// 投影数组中修改日期列的索引
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public static final int MODIFIED_DATE_COLUMN = 5;
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// 投影数组中笔记数量列的索引
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public static final int NOTES_COUNT_COLUMN = 6;
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// 投影数组中父ID列的索引
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public static final int PARENT_ID_COLUMN = 7;
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// 投影数组中摘要列的索引
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public static final int SNIPPET_COLUMN = 8;
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// 投影数组中类型列的索引
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public static final int TYPE_COLUMN = 9;
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// 投影数组中小组件ID列的索引
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public static final int WIDGET_ID_COLUMN = 10;
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// 投影数组中小组件类型列的索引
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public static final int WIDGET_TYPE_COLUMN = 11;
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// 投影数组中同步ID列的索引
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public static final int SYNC_ID_COLUMN = 12;
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// 投影数组中本地修改标记列的索引
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public static final int LOCAL_MODIFIED_COLUMN = 13;
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// 投影数组中原始父ID列的索引
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public static final int ORIGIN_PARENT_ID_COLUMN = 14;
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// 投影数组中Google Task ID列的索引
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public static final int GTASK_ID_COLUMN = 15;
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// 投影数组中版本列的索引
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public static final int VERSION_COLUMN = 16;
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// 上下文对象
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private Context mContext;
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// 内容解析器
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private ContentResolver mContentResolver;
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// 是否为创建操作
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private boolean mIsCreate;
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// 笔记ID
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private long mId;
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// 提醒日期
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private long mAlertDate;
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// 背景颜色ID
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private int mBgColorId;
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// 创建日期
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private long mCreatedDate;
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// 是否有附件(0:无,1:有)
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private int mHasAttachment;
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// 修改日期
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private long mModifiedDate;
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// 父文件夹ID
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private long mParentId;
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// 笔记摘要
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private String mSnippet;
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// 笔记类型(文件夹或笔记)
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private int mType;
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// 小组件ID
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private int mWidgetId;
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// 小组件类型
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private int mWidgetType;
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// 原始父文件夹ID
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private long mOriginParent;
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// 版本号
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private long mVersion;
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// 差异笔记值,用于记录需要更新的字段
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private ContentValues mDiffNoteValues;
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// 数据内容列表
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private ArrayList<SqlData> mDataList;
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/**
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* 构造函数,创建新的笔记对象
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* @param context 上下文对象
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*/
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public SqlNote(Context context) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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@ -143,6 +189,11 @@ public class SqlNote {
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mDataList = new ArrayList<SqlData>();
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}
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/**
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* 构造函数,从游标创建笔记对象
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* @param context 上下文对象
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* @param c 数据库游标
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*/
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public SqlNote(Context context, Cursor c) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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@ -154,6 +205,11 @@ public class SqlNote {
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mDiffNoteValues = new ContentValues();
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}
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/**
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* 构造函数,通过ID加载笔记对象
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* @param context 上下文对象
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* @param id 笔记ID
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*/
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public SqlNote(Context context, long id) {
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mContext = context;
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mContentResolver = context.getContentResolver();
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@ -163,9 +219,12 @@ public class SqlNote {
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if (mType == Notes.TYPE_NOTE)
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loadDataContent();
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mDiffNoteValues = new ContentValues();
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}
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/**
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* 通过ID从数据库加载笔记数据
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* @param id 笔记ID
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*/
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private void loadFromCursor(long id) {
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Cursor c = null;
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try {
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@ -185,6 +244,10 @@ public class SqlNote {
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}
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}
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/**
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* 从数据库游标加载笔记数据
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* @param c 数据库查询游标
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*/
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private void loadFromCursor(Cursor c) {
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mId = c.getLong(ID_COLUMN);
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mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
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@ -200,6 +263,9 @@ public class SqlNote {
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mVersion = c.getLong(VERSION_COLUMN);
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}
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/**
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* 加载笔记的关联数据内容
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*/
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private void loadDataContent() {
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Cursor c = null;
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mDataList.clear();
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@ -226,6 +292,11 @@ public class SqlNote {
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}
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}
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/**
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* 设置笔记内容,从JSON对象中解析数据
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* @param js 包含笔记信息的JSON对象
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* @return 操作是否成功
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*/
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public boolean setContent(JSONObject js) {
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try {
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JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
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@ -359,6 +430,10 @@ public class SqlNote {
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return true;
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}
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/**
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* 获取笔记内容,转换为JSON对象
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* @return 包含笔记信息的JSON对象,若未创建则返回null
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*/
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public JSONObject getContent() {
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try {
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JSONObject js = new JSONObject();
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@ -407,39 +482,76 @@ public class SqlNote {
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return null;
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}
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/**
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* 设置笔记的父文件夹ID
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* @param id 父文件夹ID
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*/
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public void setParentId(long id) {
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mParentId = id;
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mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
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}
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/**
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* 设置Google Task ID
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* @param gid Google Task ID
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*/
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public void setGtaskId(String gid) {
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mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
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}
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/**
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* 设置同步ID
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* @param syncId 同步ID
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*/
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public void setSyncId(long syncId) {
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mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
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}
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/**
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* 重置本地修改标记
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*/
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public void resetLocalModified() {
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mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
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}
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/**
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* 获取笔记ID
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* @return 笔记ID
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*/
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public long getId() {
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return mId;
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}
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/**
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* 获取父文件夹ID
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* @return 父文件夹ID
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*/
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public long getParentId() {
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return mParentId;
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}
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/**
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* 获取笔记摘要
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* @return 笔记摘要
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*/
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public String getSnippet() {
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return mSnippet;
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}
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/**
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* 判断当前是否为笔记类型(非文件夹)
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* @return 是否为笔记类型
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*/
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public boolean isNoteType() {
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return mType == Notes.TYPE_NOTE;
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}
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/**
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* 提交笔记到数据库,创建或更新记录
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* @param validateVersion 是否验证版本号
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* @throws ActionFailureException 创建笔记失败时抛出
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* @throws IllegalStateException 更新无效ID时抛出
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*/
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public void commit(boolean validateVersion) {
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if (mIsCreate) {
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if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
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