|
|
/*
|
|
|
* 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.database.Cursor;
|
|
|
import android.util.Log;
|
|
|
|
|
|
import net.micode.notes.tool.GTaskStringUtils;
|
|
|
|
|
|
import org.json.JSONException;
|
|
|
import org.json.JSONObject;
|
|
|
|
|
|
|
|
|
public class MetaData extends Task {
|
|
|
private final static String TAG = MetaData.class.getSimpleName();
|
|
|
//功能：得到类的简写名称SimpleName存入字符串TAG中
|
|
|
//实现：调用getSimpleName()函数来得到类简写名称结果
|
|
|
private String mRelatedGid = null;
|
|
|
//功能：设置数据，即生成一个初始的，也叫元数据库
|
|
|
//实现：调用JSONObject库函数put()，Task类中的setNotes ()和setName ()函数
|
|
|
public void setMeta(String gid, JSONObject metaInfo) {
|
|
|
//对函数模块进行注释
|
|
|
try {
|
|
|
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
|
|
|
//将这一对键值放入jsonobject的对象metaInfo中
|
|
|
} catch (JSONException e) {
|
|
|
Log.e(TAG, "failed to put related gid");
|
|
|
//输出错误信息
|
|
|
}
|
|
|
setNotes(metaInfo.toString());
|
|
|
setName(GTaskStringUtils.META_NOTE_NAME);
|
|
|
}
|
|
|
|
|
|
//功能：获取相关联的Gid
|
|
|
public String getRelatedGid() {
|
|
|
return mRelatedGid;
|
|
|
}
|
|
|
|
|
|
@Override
|
|
|
//功能：判断当前数据是否为空，若为空则返回“真”，即就是值得保存的
|
|
|
public boolean isWorthSaving() {
|
|
|
return getNotes() != null;
|
|
|
}
|
|
|
|
|
|
@Override
|
|
|
//功能：使用远程json数据对象设置元数据内容
|
|
|
//实现：调用父类Task中的setContentByRemoteJSON ()函数
|
|
|
public void setContentByRemoteJSON(JSONObject js) {
|
|
|
super.setContentByRemoteJSON(js);
|
|
|
if (getNotes() != null) {
|
|
|
try {
|
|
|
JSONObject metaInfo = new JSONObject(getNotes().trim());
|
|
|
mRelatedGid = metaInfo.getString(GTaskStringUtils.META_HEAD_GTASK_ID);
|
|
|
} catch (JSONException e) {
|
|
|
Log.w(TAG, "failed to get related gid");
|
|
|
//输出警告信息
|
|
|
mRelatedGid = null;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
@Override
|
|
|
//功能：使用本地json数据对象设置元数据内容，一般不用到，若用到的话则throw Error，即则抛出异常
|
|
|
public void setContentByLocalJSON(JSONObject js) {
|
|
|
// this function should not be called
|
|
|
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
|
|
|
} //传递非法参数异常
|
|
|
|
|
|
@Override
|
|
|
public JSONObject getLocalJSONFromContent() {
|
|
|
throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
|
|
|
}
|
|
|
|
|
|
@Override
|
|
|
//功能：获取同步动作状态，也是一般用不到，如果用到则throw抛出异常
|
|
|
public int getSyncAction(Cursor c) {
|
|
|
throw new IllegalAccessError("MetaData:getSyncAction should not be called");
|
|
|
} //传递非法参数异常
|
|
|
|
|
|
}
|
