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gitProject1/doc/吴梦阳——精读代码/data/MetaData.java

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/*
* 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;
ppublic class MetaData extends Task {
private final static String TAG = MetaData.class.getSimpleName();
private String mRelatedGid = null;
/**
设置元数据信息
*/
public void setMeta(String gid, JSONObject metaInfo) {
try {
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
} catch (JSONException e) {
Log.e(TAG, "failed to put related gid");
}
setNotes(metaInfo.toString());
setName(GTaskStringUtils.META_NOTE_NAME);
}
}
public String getRelatedGid() {
return mRelatedGid;
}
/**
* 判断元数据是否需要保存
* @return 需要保存则返回true否则返回false
*/
@Override
public boolean isWorthSaving() {
return getNotes() != null;
}
/**
* 通过远程JSON内容设置元数据
* @param js 远程JSON内容
*/
@Override
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");
mRelatedGid = null;
}
}
}
/**
* 通过本地JSON内容设置元数据不应该被调用
* @param js 本地JSON内容
* @throws IllegalAccessError 不应该被调用的异常
*/
@Override
public void setContentByLocalJSON(JSONObject js) {
// this function should not be called
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");
}
/**
* 获取元数据本地JSON内容不应该被调用
* @return 不应该被调用的异常
* @throws IllegalAccessError 不应该被调用的异常
*/
@Override
public JSONObject getLocalJSONFromContent() {
throw new IllegalAccessError("MetaData:getLocalJSONFromContent should not be called");
}
/**
* 获取同步操作,不应该被调用
* @param c 游标
* @return 不应该被调用的异常
* @throws IllegalAccessError 不应该被调用的异常
*/
@Override
public int getSyncAction(Cursor c) {
throw new IllegalAccessError("MetaData:getSyncAction should not be called");
}