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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;
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import android.database.Cursor;
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import org.json.JSONObject;
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/**
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* 同步节点抽象类，定义同步操作的基础模型和行为
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* 用于表示Google Tasks中的任务、列表等实体的同步状态和数据
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*/
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public abstract class Node {
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// 同步操作类型常量定义
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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;// 远程添加
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public static final int SYNC_ACTION_ADD_LOCAL = 2;// 本地添加
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public static final int SYNC_ACTION_DEL_REMOTE = 3;// 远程删除
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public static final int SYNC_ACTION_DEL_LOCAL = 4;// 本地删除
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public static final int SYNC_ACTION_UPDATE_REMOTE = 5;// 远程更新
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public static final int SYNC_ACTION_UPDATE_LOCAL = 6;// 本地更新
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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;// 操作错误
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// 节点核心属性
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private String mGid;// Google Tasks全局唯一标识符（GID
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private String mName;// 节点名称（如任务标题、列表名称）
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private long mLastModified;// 最后修改时间戳
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private boolean mDeleted;// 是否已删除标记
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/**
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* 构造方法，初始化节点默认状态
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*/
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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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// ====================== 抽象方法（子类必须实现） ======================
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/**
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* 获取创建操作的JSON数据
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* @param actionId 操作ID，用于标识不同的创建场景
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* @return 包含创建操作的JSON对象
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*/
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public abstract JSONObject getCreateAction(int actionId);
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/**
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* 获取更新操作的JSON数据
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* @param actionId 操作ID，用于标识不同的更新场景
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* @return 包含更新操作的JSON对象
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*/
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public abstract JSONObject getUpdateAction(int actionId);
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/**
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* 从远程JSON数据中解析并设置节点内容（供同步模块调用）
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* @param js 包含远程数据的JSON对象
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*/
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public abstract void setContentByRemoteJSON(JSONObject js);
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/**
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* 从本地JSON数据中解析并设置节点内容（供本地存储模块调用）
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* @param js 包含本地数据的JSON对象
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*/
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public abstract void setContentByLocalJSON(JSONObject js);
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/**
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* 将节点内容转换为本地存储的JSON格式
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* @return 表示节点内容的JSON对象
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*/
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public abstract JSONObject getLocalJSONFromContent();
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/**
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* 获取节点的同步操作类型（根据数据库游标数据判断）
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* @param c 包含节点数据的数据库游标
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* @return 同步操作类型常量（如SYNC_ACTION_ADD_LOCAL）
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*/
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public abstract int getSyncAction(Cursor c);
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// ====================== 基础属性访问方法 ======================
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public void setGid(String gid) {
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this.mGid = gid;
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}
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public void setName(String name) {
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this.mName = name;
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}
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public void setLastModified(long lastModified) {
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this.mLastModified = lastModified;
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}
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public void setDeleted(boolean deleted) {
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this.mDeleted = deleted;
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}
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public String getGid() {
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return this.mGid;
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}
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public String getName() {
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return this.mName;
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}
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public long getLastModified() {
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return this.mLastModified;
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}
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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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