/*

* 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.gtask.data;

import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.util.Log;

import net.micode.notes.data.Notes;
import net.micode.notes.data.Notes.DataColumns;
import net.micode.notes.data.Notes.DataConstants;
import net.micode.notes.data.Notes.NoteColumns;
import net.micode.notes.data.NotesDatabaseHelper.TABLE;
import net.micode.notes.gtask.exception.ActionFailureException;

import org.json.JSONException;
import org.json.JSONObject;

public class SqlData {
    private static final String TAG = SqlData.class.getSimpleName();

    private static final int INVALID_ID = -99999;

    public static final String[] PROJECTION_DATA = new String[] {
            DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
            DataColumns.DATA3
    };

    public static final int DATA_ID_COLUMN = 0;

    public static final int DATA_MIME_TYPE_COLUMN = 1;

    public static final int DATA_CONTENT_COLUMN = 2;

    public static final int DATA_CONTENT_DATA_1_COLUMN = 3;

    public static final int DATA_CONTENT_DATA_3_COLUMN = 4;

    private ContentResolver mContentResolver;

    private boolean mIsCreate;

    private long mDataId;

    private String mDataMimeType;

    private String mDataContent;

    private long mDataContentData1;

    private String mDataContentData3;

    private ContentValues mDiffDataValues;

    public SqlData(Context context) {
        mContentResolver = context.getContentResolver();
        mIsCreate = true;
        mDataId = INVALID_ID;
        mDataMimeType = DataConstants.NOTE;
        mDataContent = "";
        mDataContentData1 = 0;
        mDataContentData3 = "";
        mDiffDataValues = new ContentValues();
    }

    public SqlData(Context context, Cursor c) {
        mContentResolver = context.getContentResolver();
        mIsCreate = false;
        loadFromCursor(c);
        mDiffDataValues = new ContentValues();
    }

    private void loadFromCursor(Cursor c) {
        mDataId = c.getLong(DATA_ID_COLUMN);
        mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
        mDataContent = c.getString(DATA_CONTENT_COLUMN);
        mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
        mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
    }

    public void setContent(JSONObject js) throws JSONException {
        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
        if (mIsCreate || mDataId != dataId) {
            mDiffDataValues.put(DataColumns.ID, dataId);
        }
        mDataId = dataId;

        String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
                : DataConstants.NOTE;
        if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
            mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
        }
        mDataMimeType = dataMimeType;

        String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
        if (mIsCreate || !mDataContent.equals(dataContent)) {
            mDiffDataValues.put(DataColumns.CONTENT, dataContent);
        }
        mDataContent = dataContent;

        long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
        if (mIsCreate || mDataContentData1 != dataContentData1) {
            mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
        }
        mDataContentData1 = dataContentData1;

        String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
        if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
            mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
        }
        mDataContentData3 = dataContentData3;
    }

    public JSONObject getContent() throws JSONException {
        if (mIsCreate) {
            Log.e(TAG, "it seems that we haven't created this in database yet");
            return null;
        }
        JSONObject js = new JSONObject();
        js.put(DataColumns.ID, mDataId);
        js.put(DataColumns.MIME_TYPE, mDataMimeType);
        js.put(DataColumns.CONTENT, mDataContent);
        js.put(DataColumns.DATA1, mDataContentData1);
        js.put(DataColumns.DATA3, mDataContentData3);
        return js;
    }

    public void commit(long noteId, boolean validateVersion, long version) {

        if (mIsCreate) {
            if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
                mDiffDataValues.remove(DataColumns.ID);
            }

            mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
            Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
            try {
                mDataId = Long.valueOf(uri.getPathSegments().get(1));
            } catch (NumberFormatException e) {
                Log.e(TAG, "Get note id error :" + e.toString());
                throw new ActionFailureException("create note failed");
            }
        } else {
            if (mDiffDataValues.size() > 0) {
                int result = 0;
                if (!validateVersion) {
                    result = mContentResolver.update(ContentUris.withAppendedId(
                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
                } else {
                    result = mContentResolver.update(ContentUris.withAppendedId(
                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
                            " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
                                    + " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
                                    String.valueOf(noteId), String.valueOf(version)
                            });
                }
                if (result == 0) {
                    Log.w(TAG, "there is no update. maybe user updates note when syncing");
                }
            }
        }

        mDiffDataValues.clear();
        mIsCreate = false;
    }

    public long getId() {
        return mDataId;
    }
}

src/MiNotes-master/app/src/main/java/net/micode/notes/gtask/data/SqlData.java

@@ -1,577 +1,189 @@
 /*
- * Description：用于支持小米便签最底层的数据库相关操作，和sqldata的关系上是父集关系，即note是data的子父集。
+ * Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
- * 和SqlData相比，SqlNote算是真正意义上的数据了。
+ *
+ * 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.gtask.data;
-/*
+
- * 功能描述：
+import android.content.ContentResolver;
- * 实现过程：
+import android.content.ContentUris;
- * 参数注解： 
+import android.content.ContentValues;
- * Made By CuiCan
+import android.content.Context;
- */
+import android.database.Cursor;
- 
+import android.net.Uri;
-public class SqlNote {
+import android.util.Log;
-	/*
+
-	 * 功能描述：得到类的简写名称存入字符串TAG中
+import net.micode.notes.data.Notes;
-	 * 实现过程：调用getSimpleName ()函数
+import net.micode.notes.data.Notes.DataColumns;
-	 * Made By CuiCan
+import net.micode.notes.data.Notes.DataConstants;
-	 */
+import net.micode.notes.data.Notes.NoteColumns;
-    private static final String TAG = SqlNote.class.getSimpleName();
+import net.micode.notes.data.NotesDatabaseHelper.TABLE;
- 
+import net.micode.notes.gtask.exception.ActionFailureException;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+public class SqlData {
+    private static final String TAG = SqlData.class.getSimpleName();
+
     private static final int INVALID_ID = -99999;
-    // 集合了interface NoteColumns中所有SF常量（17个）
+
-    public static final String[] PROJECTION_NOTE = new String[] {
+    public static final String[] PROJECTION_DATA = new String[] {
-            NoteColumns.ID, NoteColumns.ALERTED_DATE, NoteColumns.BG_COLOR_ID,
+            DataColumns.ID, DataColumns.MIME_TYPE, DataColumns.CONTENT, DataColumns.DATA1,
-            NoteColumns.CREATED_DATE, NoteColumns.HAS_ATTACHMENT, NoteColumns.MODIFIED_DATE,
+            DataColumns.DATA3
-            NoteColumns.NOTES_COUNT, NoteColumns.PARENT_ID, NoteColumns.SNIPPET, NoteColumns.TYPE,
-            NoteColumns.WIDGET_ID, NoteColumns.WIDGET_TYPE, NoteColumns.SYNC_ID,
-            NoteColumns.LOCAL_MODIFIED, NoteColumns.ORIGIN_PARENT_ID, NoteColumns.GTASK_ID,
-            NoteColumns.VERSION
     };
- 
+
-    //以下设置17个列的编号
+    public static final int DATA_ID_COLUMN = 0;
-    public static final int ID_COLUMN = 0;
+
- 
+    public static final int DATA_MIME_TYPE_COLUMN = 1;
-    public static final int ALERTED_DATE_COLUMN = 1;
+
- 
+    public static final int DATA_CONTENT_COLUMN = 2;
-    public static final int BG_COLOR_ID_COLUMN = 2;
+
- 
+    public static final int DATA_CONTENT_DATA_1_COLUMN = 3;
-    public static final int CREATED_DATE_COLUMN = 3;
+
- 
+    public static final int DATA_CONTENT_DATA_3_COLUMN = 4;
-    public static final int HAS_ATTACHMENT_COLUMN = 4;
+
- 
-    public static final int MODIFIED_DATE_COLUMN = 5;
- 
-    public static final int NOTES_COUNT_COLUMN = 6;
- 
-    public static final int PARENT_ID_COLUMN = 7;
- 
-    public static final int SNIPPET_COLUMN = 8;
- 
-    public static final int TYPE_COLUMN = 9;
- 
-    public static final int WIDGET_ID_COLUMN = 10;
- 
-    public static final int WIDGET_TYPE_COLUMN = 11;
- 
-    public static final int SYNC_ID_COLUMN = 12;
- 
-    public static final int LOCAL_MODIFIED_COLUMN = 13;
- 
-    public static final int ORIGIN_PARENT_ID_COLUMN = 14;
- 
-    public static final int GTASK_ID_COLUMN = 15;
- 
-    public static final int VERSION_COLUMN = 16;
- 
-    //一下定义了17个内部的变量，其中12个可以由content中获得，5个需要初始化为0或者new
-    private Context mContext;
- 
     private ContentResolver mContentResolver;
- 
+
     private boolean mIsCreate;
- 
+
-    private long mId;
+    private long mDataId;
- 
+
-    private long mAlertDate;
+    private String mDataMimeType;
- 
+
-    private int mBgColorId;
+    private String mDataContent;
- 
+
-    private long mCreatedDate;
+    private long mDataContentData1;
- 
+
-    private int mHasAttachment;
+    private String mDataContentData3;
- 
+
-    private long mModifiedDate;
+    private ContentValues mDiffDataValues;
- 
+
-    private long mParentId;
+    public SqlData(Context context) {
- 
-    private String mSnippet;
- 
-    private int mType;
- 
-    private int mWidgetId;
- 
-    private int mWidgetType;
- 
-    private long mOriginParent;
- 
-    private long mVersion;
- 
-    private ContentValues mDiffNoteValues;
- 
-    private ArrayList<SqlData> mDataList;
- 
-    /*
-     * 功能描述：构造函数
-     * 参数注解： mIsCreate用于标示构造方式
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    //构造函数只有context，对所有的变量进行初始化
-    public SqlNote(Context context) {
-        mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = true;
-        mId = INVALID_ID;
+        mDataId = INVALID_ID;
-        mAlertDate = 0;
+        mDataMimeType = DataConstants.NOTE;
-        mBgColorId = ResourceParser.getDefaultBgId(context);
+        mDataContent = "";
-        mCreatedDate = System.currentTimeMillis();//调用系统函数获得创建时间
+        mDataContentData1 = 0;
-        mHasAttachment = 0;
+        mDataContentData3 = "";
-        mModifiedDate = System.currentTimeMillis();//最后一次修改时间初始化为创建时间
+        mDiffDataValues = new ContentValues();
-        mParentId = 0;
+    }
-        mSnippet = "";
+
-        mType = Notes.TYPE_NOTE;
+    public SqlData(Context context, Cursor c) {
-        mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;
-        mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
-        mOriginParent = 0;
-        mVersion = 0;
-        mDiffNoteValues = new ContentValues();
-        mDataList = new ArrayList<SqlData>();
-    }
- 
- 
-    /*
-     * 功能描述：构造函数
-     * 参数注解： mIsCreate用于标示构造方式
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    //构造函数有context和一个数据库的cursor，多数变量通过cursor指向的一条记录直接进行初始化
-    public SqlNote(Context context, Cursor c) {
-        mContext = context;
         mContentResolver = context.getContentResolver();
         mIsCreate = false;
         loadFromCursor(c);
-        mDataList = new ArrayList<SqlData>();
+        mDiffDataValues = new ContentValues();
-        //
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
-        mDiffNoteValues = new ContentValues();
-    }
- 
- 
-    /*
-     * 功能描述：构造函数
-     * 参数注解： mIsCreate用于标示构造方式
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public SqlNote(Context context, long id) {
-        mContext = context;
-        mContentResolver = context.getContentResolver();
-        mIsCreate = false;
-        loadFromCursor(id);
-        mDataList = new ArrayList<SqlData>();
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
-        mDiffNoteValues = new ContentValues();
- 
-    }
- 
-    /*
-     * 功能描述：通过id从光标处加载数据
-     * Made By CuiCan
-     */
-    private void loadFromCursor(long id) {
-        Cursor c = null;
-        try {
-            c = mContentResolver.query(Notes.CONTENT_NOTE_URI, PROJECTION_NOTE, "(_id=?)",
-                    new String[] {
-                        String.valueOf(id)
-                    }, null);//通过id获得对应的ContentResolver中的cursor
-            if (c != null) {
-                c.moveToNext();
-                loadFromCursor(c);//然后加载数据进行初始化，这样函数
-                //SqlNote(Context context, long id)与SqlNote(Context context, long id)的实现方式基本相同
-            } else {
-                Log.w(TAG, "loadFromCursor: cursor = null");
-            }
-        } finally {
-            if (c != null)
-                c.close();
-        }
     }
- 
+
-    /*
-     * 功能描述：通过游标从光标处加载数据
-     * Made By CuiCan
-     */
     private void loadFromCursor(Cursor c) {
-    	//直接从一条记录中的获得以下变量的初始值
+        mDataId = c.getLong(DATA_ID_COLUMN);
-        mId = c.getLong(ID_COLUMN);
+        mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
-        mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
+        mDataContent = c.getString(DATA_CONTENT_COLUMN);
-        mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
+        mDataContentData1 = c.getLong(DATA_CONTENT_DATA_1_COLUMN);
-        mCreatedDate = c.getLong(CREATED_DATE_COLUMN);
+        mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
-        mHasAttachment = c.getInt(HAS_ATTACHMENT_COLUMN);
+    }
-        mModifiedDate = c.getLong(MODIFIED_DATE_COLUMN);
+
-        mParentId = c.getLong(PARENT_ID_COLUMN);
+    public void setContent(JSONObject js) throws JSONException {
-        mSnippet = c.getString(SNIPPET_COLUMN);
+        long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;
-        mType = c.getInt(TYPE_COLUMN);
+        if (mIsCreate || mDataId != dataId) {
-        mWidgetId = c.getInt(WIDGET_ID_COLUMN);
+            mDiffDataValues.put(DataColumns.ID, dataId);
-        mWidgetType = c.getInt(WIDGET_TYPE_COLUMN);
-        mVersion = c.getLong(VERSION_COLUMN);
-    }
- 
-    /*
-     * 功能描述：通过content机制获取共享数据并加载到数据库当前游标处
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    private void loadDataContent() {
-        Cursor c = null;
-        mDataList.clear();
-        try {
-            c = mContentResolver.query(Notes.CONTENT_DATA_URI, SqlData.PROJECTION_DATA,
-                    "(note_id=?)", new String[] {
-                        String.valueOf(mId)
-                    }, null);
-            if (c != null) {
-                if (c.getCount() == 0) {
-                    Log.w(TAG, "it seems that the note has not data");
-                    return;
-                }
-                while (c.moveToNext()) {
-                    SqlData data = new SqlData(mContext, c);
-                    mDataList.add(data);
-                }
-            } else {
-                Log.w(TAG, "loadDataContent: cursor = null");
-            }
-        } finally {
-            if (c != null)
-                c.close();
         }
-    }
+        mDataId = dataId;
- 
+
-    /*
+        String dataMimeType = js.has(DataColumns.MIME_TYPE) ? js.getString(DataColumns.MIME_TYPE)
-     * 功能描述：设置通过content机制用于共享的数据信息
+                : DataConstants.NOTE;
-     * 参数注解： 
+        if (mIsCreate || !mDataMimeType.equals(dataMimeType)) {
-     * Made By CuiCan
+            mDiffDataValues.put(DataColumns.MIME_TYPE, dataMimeType);
-     */
-    public boolean setContent(JSONObject js) {
-        try {
-            JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
-            if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
-                Log.w(TAG, "cannot set system folder");
-            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_FOLDER) {
-                // for folder we can only update the snnipet and type
-                String snippet = note.has(NoteColumns.SNIPPET) ? note
-                        .getString(NoteColumns.SNIPPET) : "";
-                if (mIsCreate || !mSnippet.equals(snippet)) {
-                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
-                }
-                mSnippet = snippet;
- 
-                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
-                        : Notes.TYPE_NOTE;
-                if (mIsCreate || mType != type) {
-                    mDiffNoteValues.put(NoteColumns.TYPE, type);
-                }
-                mType = type;
-            } else if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_NOTE) {
-                JSONArray dataArray = js.getJSONArray(GTaskStringUtils.META_HEAD_DATA);
-                long id = note.has(NoteColumns.ID) ? note.getLong(NoteColumns.ID) : INVALID_ID;
-                if (mIsCreate || mId != id) {
-                    mDiffNoteValues.put(NoteColumns.ID, id);
-                }
-                mId = id;
- 
-                long alertDate = note.has(NoteColumns.ALERTED_DATE) ? note
-                        .getLong(NoteColumns.ALERTED_DATE) : 0;
-                if (mIsCreate || mAlertDate != alertDate) {
-                    mDiffNoteValues.put(NoteColumns.ALERTED_DATE, alertDate);
-                }
-                mAlertDate = alertDate;
- 
-                int bgColorId = note.has(NoteColumns.BG_COLOR_ID) ? note
-                        .getInt(NoteColumns.BG_COLOR_ID) : ResourceParser.getDefaultBgId(mContext);
-                if (mIsCreate || mBgColorId != bgColorId) {
-                    mDiffNoteValues.put(NoteColumns.BG_COLOR_ID, bgColorId);
-                }
-                mBgColorId = bgColorId;
-                long createDate = note.has(NoteColumns.CREATED_DATE) ? note
-                        .getLong(NoteColumns.CREATED_DATE) : System.currentTimeMillis();
-                if (mIsCreate || mCreatedDate != createDate) {
-                    mDiffNoteValues.put(NoteColumns.CREATED_DATE, createDate);
-                }
-                mCreatedDate = createDate;
- 
-                int hasAttachment = note.has(NoteColumns.HAS_ATTACHMENT) ? note
-                        .getInt(NoteColumns.HAS_ATTACHMENT) : 0;
-                if (mIsCreate || mHasAttachment != hasAttachment) {
-                    mDiffNoteValues.put(NoteColumns.HAS_ATTACHMENT, hasAttachment);
-                }
-                mHasAttachment = hasAttachment;
- 
-                long modifiedDate = note.has(NoteColumns.MODIFIED_DATE) ? note
-                        .getLong(NoteColumns.MODIFIED_DATE) : System.currentTimeMillis();
-                if (mIsCreate || mModifiedDate != modifiedDate) {
-                    mDiffNoteValues.put(NoteColumns.MODIFIED_DATE, modifiedDate);
-                }
-                mModifiedDate = modifiedDate;
- 
-                long parentId = note.has(NoteColumns.PARENT_ID) ? note
-                        .getLong(NoteColumns.PARENT_ID) : 0;
-                if (mIsCreate || mParentId != parentId) {
-                    mDiffNoteValues.put(NoteColumns.PARENT_ID, parentId);
-                }
-                mParentId = parentId;
- 
-                String snippet = note.has(NoteColumns.SNIPPET) ? note
-                        .getString(NoteColumns.SNIPPET) : "";
-                if (mIsCreate || !mSnippet.equals(snippet)) {
-                    mDiffNoteValues.put(NoteColumns.SNIPPET, snippet);
-                }
-                mSnippet = snippet;
- 
-                int type = note.has(NoteColumns.TYPE) ? note.getInt(NoteColumns.TYPE)
-                        : Notes.TYPE_NOTE;
-                if (mIsCreate || mType != type) {
-                    mDiffNoteValues.put(NoteColumns.TYPE, type);
-                }
-                mType = type;
- 
-                int widgetId = note.has(NoteColumns.WIDGET_ID) ? note.getInt(NoteColumns.WIDGET_ID)
-                        : AppWidgetManager.INVALID_APPWIDGET_ID;
-                if (mIsCreate || mWidgetId != widgetId) {
-                    mDiffNoteValues.put(NoteColumns.WIDGET_ID, widgetId);
-                }
-                mWidgetId = widgetId;
- 
-                int widgetType = note.has(NoteColumns.WIDGET_TYPE) ? note
-                        .getInt(NoteColumns.WIDGET_TYPE) : Notes.TYPE_WIDGET_INVALIDE;
-                if (mIsCreate || mWidgetType != widgetType) {
-                    mDiffNoteValues.put(NoteColumns.WIDGET_TYPE, widgetType);
-                }
-                mWidgetType = widgetType;
- 
-                long originParent = note.has(NoteColumns.ORIGIN_PARENT_ID) ? note
-                        .getLong(NoteColumns.ORIGIN_PARENT_ID) : 0;
-                if (mIsCreate || mOriginParent != originParent) {
-                    mDiffNoteValues.put(NoteColumns.ORIGIN_PARENT_ID, originParent);
-                }
-                mOriginParent = originParent;
- 
-                for (int i = 0; i < dataArray.length(); i++) {
-                    JSONObject data = dataArray.getJSONObject(i);
-                    SqlData sqlData = null;
-                    if (data.has(DataColumns.ID)) {
-                        long dataId = data.getLong(DataColumns.ID);
-                        for (SqlData temp : mDataList) {
-                            if (dataId == temp.getId()) {
-                                sqlData = temp;
-                            }
-                        }
-                    }
- 
-                    if (sqlData == null) {
-                        sqlData = new SqlData(mContext);
-                        mDataList.add(sqlData);
-                    }
- 
-                    sqlData.setContent(data);
-                }
-            }
-        } catch (JSONException e) {
-            Log.e(TAG, e.toString());
-            e.printStackTrace();
-            return false;
         }
-        return true;
+        mDataMimeType = dataMimeType;
-    }
+
- 
+        String dataContent = js.has(DataColumns.CONTENT) ? js.getString(DataColumns.CONTENT) : "";
-    /*
+        if (mIsCreate || !mDataContent.equals(dataContent)) {
-     * 功能描述：获取content机制提供的数据并加载到note中
+            mDiffDataValues.put(DataColumns.CONTENT, dataContent);
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public JSONObject getContent() {
-        try {
-            JSONObject js = new JSONObject();
- 
-            if (mIsCreate) {
-                Log.e(TAG, "it seems that we haven't created this in database yet");
-                return null;
-            }
- 
-            JSONObject note = new JSONObject();
-            if (mType == Notes.TYPE_NOTE) {//类型为note时
-                note.put(NoteColumns.ID, mId);
-                note.put(NoteColumns.ALERTED_DATE, mAlertDate);
-                note.put(NoteColumns.BG_COLOR_ID, mBgColorId);
-                note.put(NoteColumns.CREATED_DATE, mCreatedDate);
-                note.put(NoteColumns.HAS_ATTACHMENT, mHasAttachment);
-                note.put(NoteColumns.MODIFIED_DATE, mModifiedDate);
-                note.put(NoteColumns.PARENT_ID, mParentId);
-                note.put(NoteColumns.SNIPPET, mSnippet);
-                note.put(NoteColumns.TYPE, mType);
-                note.put(NoteColumns.WIDGET_ID, mWidgetId);
-                note.put(NoteColumns.WIDGET_TYPE, mWidgetType);
-                note.put(NoteColumns.ORIGIN_PARENT_ID, mOriginParent);
-                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
- 
-                JSONArray dataArray = new JSONArray();
-                for (SqlData sqlData : mDataList) {
-                    JSONObject data = sqlData.getContent();
-                    if (data != null) {
-                        dataArray.put(data);
-                    }
-                }
-                js.put(GTaskStringUtils.META_HEAD_DATA, dataArray);
-            } else if (mType == Notes.TYPE_FOLDER || mType == Notes.TYPE_SYSTEM) {//类型为文件夹或者
-                note.put(NoteColumns.ID, mId);
-                note.put(NoteColumns.TYPE, mType);
-                note.put(NoteColumns.SNIPPET, mSnippet);
-                js.put(GTaskStringUtils.META_HEAD_NOTE, note);
-            }
- 
-            return js;
-        } catch (JSONException e) {
-            Log.e(TAG, e.toString());
-            e.printStackTrace();
         }
-        return null;
+        mDataContent = dataContent;
-    }
+
- 
+        long dataContentData1 = js.has(DataColumns.DATA1) ? js.getLong(DataColumns.DATA1) : 0;
-    /*
+        if (mIsCreate || mDataContentData1 != dataContentData1) {
-     * 功能描述：给当前id设置父id
+            mDiffDataValues.put(DataColumns.DATA1, dataContentData1);
-     * 参数注解： 
+        }
-     * Made By CuiCan
+        mDataContentData1 = dataContentData1;
-     */
+
-    public void setParentId(long id) {
+        String dataContentData3 = js.has(DataColumns.DATA3) ? js.getString(DataColumns.DATA3) : "";
-        mParentId = id;
+        if (mIsCreate || !mDataContentData3.equals(dataContentData3)) {
-        mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
+            mDiffDataValues.put(DataColumns.DATA3, dataContentData3);
-    }
+        }
- 
+        mDataContentData3 = dataContentData3;
-    /*
-     * 功能描述：给当前id设置Gtaskid
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public void setGtaskId(String gid) {
-        mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
-    }
- 
-    /*
-     * 功能描述：给当前id设置同步id
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public void setSyncId(long syncId) {
-        mDiffNoteValues.put(NoteColumns.SYNC_ID, syncId);
-    }
- 
-    /*
-     * 功能描述：初始化本地修改，即撤销所有当前修改
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public void resetLocalModified() {
-        mDiffNoteValues.put(NoteColumns.LOCAL_MODIFIED, 0);
-    }
- 
-    /*
-     * 功能描述：获得当前id
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public long getId() {
-        return mId;
-    }
- 
-    /*
-     * 功能描述：获得当前id的父id
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public long getParentId() {
-        return mParentId;
-    }
- 
-    /*
-     * 功能描述：获取小片段即用于显示的部分便签内容
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public String getSnippet() {
-        return mSnippet;
-    }
- 
-    /*
-     * 功能描述：判断是否为便签类型
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public boolean isNoteType() {
-        return mType == Notes.TYPE_NOTE;
     }
- 
+
-    /*
+    public JSONObject getContent() throws JSONException {
-     * 功能描述：commit函数用于把当前造作所做的修改保存到数据库
-     * 参数注解： 
-     * Made By CuiCan
-     */
-    public void commit(boolean validateVersion) {
         if (mIsCreate) {
-            if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
+            Log.e(TAG, "it seems that we haven't created this in database yet");
-                mDiffNoteValues.remove(NoteColumns.ID);
+            return null;
+        }
+        JSONObject js = new JSONObject();
+        js.put(DataColumns.ID, mDataId);
+        js.put(DataColumns.MIME_TYPE, mDataMimeType);
+        js.put(DataColumns.CONTENT, mDataContent);
+        js.put(DataColumns.DATA1, mDataContentData1);
+        js.put(DataColumns.DATA3, mDataContentData3);
+        return js;
+    }
+
+    public void commit(long noteId, boolean validateVersion, long version) {
+
+        if (mIsCreate) {
+            if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
+                mDiffDataValues.remove(DataColumns.ID);
             }
- 
+
-            Uri uri = mContentResolver.insert(Notes.CONTENT_NOTE_URI, mDiffNoteValues);
+            mDiffDataValues.put(DataColumns.NOTE_ID, noteId);
+            Uri uri = mContentResolver.insert(Notes.CONTENT_DATA_URI, mDiffDataValues);
             try {
-                mId = Long.valueOf(uri.getPathSegments().get(1));
+                mDataId = Long.valueOf(uri.getPathSegments().get(1));
             } catch (NumberFormatException e) {
                 Log.e(TAG, "Get note id error :" + e.toString());
                 throw new ActionFailureException("create note failed");
             }
-            if (mId == 0) {
-                throw new IllegalStateException("Create thread id failed");
-            }
- 
-            if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {//直接使用sqldata中的实现
-                    sqlData.commit(mId, false, -1);
-                }
-            }
         } else {
-            if (mId <= 0 && mId != Notes.ID_ROOT_FOLDER && mId != Notes.ID_CALL_RECORD_FOLDER) {
+            if (mDiffDataValues.size() > 0) {
-                Log.e(TAG, "No such note");
-                throw new IllegalStateException("Try to update note with invalid id");
-            }
-            if (mDiffNoteValues.size() > 0) {
-                mVersion ++;
                 int result = 0;
-                if (!validateVersion) {//构造字符串
+                if (!validateVersion) {
-                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+                    result = mContentResolver.update(ContentUris.withAppendedId(
-                            + NoteColumns.ID + "=?)", new String[] {
+                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
-                        String.valueOf(mId)
-                    });
                 } else {
-                    result = mContentResolver.update(Notes.CONTENT_NOTE_URI, mDiffNoteValues, "("
+                    result = mContentResolver.update(ContentUris.withAppendedId(
-                            + NoteColumns.ID + "=?) AND (" + NoteColumns.VERSION + "<=?)",
+                            Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
-                            new String[] {
+                            " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE
-                                    String.valueOf(mId), String.valueOf(mVersion)
+                                    + " WHERE " + NoteColumns.VERSION + "=?)", new String[] {
+                                    String.valueOf(noteId), String.valueOf(version)
                             });
                 }
                 if (result == 0) {
                     Log.w(TAG, "there is no update. maybe user updates note when syncing");
                 }
             }
- 
-            if (mType == Notes.TYPE_NOTE) {
-                for (SqlData sqlData : mDataList) {
-                    sqlData.commit(mId, validateVersion, mVersion);
-                }
-            }
         }
- 
+
-        // refresh local info
+        mDiffDataValues.clear();
-        loadFromCursor(mId);
-        if (mType == Notes.TYPE_NOTE)
-            loadDataContent();
- 
-        mDiffNoteValues.clear();
         mIsCreate = false;
     }
-}
+
+    public long getId() {
+        return mDataId;
+    }
+}