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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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java
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// 导入所需的包
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package net.micode.notes.gtask.data;
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import android.database.Cursor; // 用于数据库查询结果的游标
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import org.json.JSONObject; // JSON对象类
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// 定义一个抽象类Node,它代表了一个节点(如任务、笔记等)的基本属性和行为
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public abstract class Node {
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// 定义同步操作的常量,用于指示节点的同步状态或要执行的同步动作
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public static final int SYNC_ACTION_NONE = 0; // 无操作
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public static final int SYNC_ACTION_ADD_REMOTE = 1; // 在远程添加
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public static final int SYNC_ACTION_ADD_LOCAL = 2; // 在本地添加
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public static final int SYNC_ACTION_DEL_REMOTE = 3; // 在远程删除
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public static final int SYNC_ACTION_DEL_LOCAL = 4; // 在本地删除
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public static final int SYNC_ACTION_UPDATE_REMOTE = 5; // 更新远程节点
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public static final int SYNC_ACTION_UPDATE_LOCAL = 6; // 更新本地节点
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public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; // 更新冲突
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public static final int SYNC_ACTION_ERROR = 8; // 同步错误
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// 定义节点的私有属性
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private String mGid; // 节点的全局唯一标识符
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private String mName; // 节点的名称
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private long mLastModified; // 节点最后修改的时间戳
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private boolean mDeleted; // 节点是否被删除的标志
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// 构造方法,初始化节点的属性
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public Node() {
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mGid = null; // GID初始化为null,表示新创建的节点还没有GID
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mName = ""; // 名称初始化为空字符串
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mLastModified = 0; // 最后修改时间初始化为0,表示节点还没有被修改过
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mDeleted = false; // 删除标志初始化为false,表示节点没有被删除
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}
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// 抽象方法,用于获取创建节点的动作JSON对象,具体实现由子类提供
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public abstract JSONObject getCreateAction(int actionId);
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// 抽象方法,用于获取更新节点的动作JSON对象,具体实现由子类提供
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public abstract JSONObject getUpdateAction(int actionId);
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// 抽象方法,用于从远程JSON对象设置节点的内容,具体实现由子类提供
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public abstract void setContentByRemoteJSON(JSONObject js);
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// 抽象方法,用于从本地JSON对象设置节点的内容,具体实现由子类提供
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public abstract void setContentByLocalJSON(JSONObject js);
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// 抽象方法,用于将节点的内容转换为本地JSON对象,具体实现由子类提供
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public abstract JSONObject getLocalJSONFromContent();
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// 抽象方法,用于根据数据库游标获取节点的同步动作,具体实现由子类提供
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public abstract int getSyncAction(Cursor c);
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// 设置节点的GID
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public void setGid(String gid) {
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this.mGid = gid;
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}
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// 获取节点的GID
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public String getGid() {
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return this.mGid;
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}
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// 设置节点的名称
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public void setName(String name) {
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this.mName = name;
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}
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// 获取节点的名称
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public String getName() {
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return this.mName;
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}
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// 设置节点最后修改的时间戳
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public void setLastModified(long lastModified) {
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this.mLastModified = lastModified;
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}
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// 获取节点最后修改的时间戳
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public long getLastModified() {
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return this.mLastModified;
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}
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// 设置节点是否被删除的标志
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public void setDeleted(boolean deleted) {
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this.mDeleted = deleted;
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}
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// 获取节点是否被删除的标志
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public boolean getDeleted() {
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return this.mDeleted;
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}
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}
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