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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.gtask.data; //包名，依赖关系
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import android.database.Cursor; //引用cursor，此公用接口提供对数据库查询返回的结果集的随机读写访问。
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import org.json.JSONObject;//引用 JSONObject，一组可修改的名称/值映射集。
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public abstract class Node {
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public static final int SYNC_ACTION_NONE = 0;
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public static final int SYNC_ACTION_ADD_REMOTE = 1;//需要在远程云端增加内容
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public static final int SYNC_ACTION_ADD_LOCAL = 2;//需要在本地增加内容
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public static final int SYNC_ACTION_DEL_REMOTE = 3; //需要在远程云端删除内容
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public static final int SYNC_ACTION_DEL_LOCAL = 4;//需要在本地删除内容
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public static final int SYNC_ACTION_UPDATE_REMOTE = 5;//需要将本地内容更新到远程云端
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public static final int SYNC_ACTION_UPDATE_LOCAL = 6;//需要将远程云端内容更新到本地
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public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; //同步出现冲突
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public static final int SYNC_ACTION_ERROR = 8;//同步出现错误
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private String mGid; //记录最后一次修改时间
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private String mName;//bool类型，表明表征是否被删除
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private long mLastModified;//记录最后一次修改时间
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private boolean mDeleted;//判断 表征是否被删除
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//构造函数，进行初始化，界面没有，名字为空，最后一次修改时间为0（没有修改），表征是否删除。
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public Node() {
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mGid = null;
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mName = "";
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mLastModified = 0;
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mDeleted = false;
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}
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// 创建JSONObject对象，创建操作和更新操作，形参是操作号
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public abstract JSONObject getCreateAction(int actionId);
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public abstract JSONObject getUpdateAction(int actionId);//获取需要更新活动的ID
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public abstract void setContentByRemoteJSON(JSONObject js);//都是JSONObject和Curson中的一些操作，主要是创建相应的对象进行远端和本地同步操作
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public abstract void setContentByLocalJSON(JSONObject js);//声明JSONObject对象抽象类，从本地JSON中同步设置目录
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public abstract JSONObject getLocalJSONFromContent();//声明JSONObject对象抽象类，从目录中获取本地JSON
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public abstract int getSyncAction(Cursor c);//声明int抽象类，获取同步行为代号
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public void setGid(String gid) {
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this.mGid = gid;
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} //对构造函数中的对象进行赋值或者获取对象的具体内容将gid赋给mGid，以下均为Node函数参数的输入与赋值
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public void setName(String name) {
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this.mName = name;
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} //设置名字
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public void setLastModified(long lastModified) {
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this.mLastModified = lastModified;
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}//时间标识
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public void setDeleted(boolean deleted) {
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this.mDeleted = deleted;
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}//删除标识
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public String getGid() {
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return this.mGid;
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}//返回git
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public String getName() {
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return this.mName;
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}//返回mname
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public long getLastModified() {
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return this.mLastModified;
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}//获取时间标识
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public boolean getDeleted() {
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return this.mDeleted;
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}//获取删除标识
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}
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