5MI/Node.java

// 多行注释，说明版权信息和许可证
/*
 * 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.
 */

// 导入所需的类
package net.micode.notes.gtask.data;

import android.database.Cursor;

import org.json.JSONObject;

// Node类是一个抽象类，用于表示任务或节点的数据结构
public abstract class Node {
    // 定义同步操作的常量
    public static final int SYNC_ACTION_NONE = 0; // 无操作
    public static final int SYNC_ACTION_ADD_REMOTE = 1; // 远程添加
    public static final int SYNC_ACTION_ADD_LOCAL = 2; // 本地添加
    public static final int SYNC_ACTION_DEL_REMOTE = 3; // 远程删除
    public static final int SYNC_ACTION_DEL_LOCAL = 4; // 本地删除
    public static final int SYNC_ACTION_UPDATE_REMOTE = 5; // 远程更新
    public static final int SYNC_ACTION_UPDATE_LOCAL = 6; // 本地更新
    public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; // 更新冲突
    public static final int SYNC_ACTION_ERROR = 8; // 错误

    // 成员变量
    private String mGid; // 节点的全局唯一标识符
    private String mName; // 节点的名称
    private long mLastModified; // 节点的最后修改时间
    private boolean mDeleted; // 节点是否被删除

    // 构造函数
    public Node() {
        mGid = null; // 初始时，全局唯一标识符为空
        mName = ""; // 初始时，名称为空字符串
        mLastModified = 0; // 初始时，最后修改时间为0
        mDeleted = false; // 初始时，节点未被删除
    }

    // 获取创建操作的JSON对象
    public abstract JSONObject getCreateAction(int actionId);

    // 获取更新操作的JSON对象
    public abstract JSONObject getUpdateAction(int actionId);

    // 根据远程JSON对象设置内容
    public abstract void setContentByRemoteJSON(JSONObject js);

    // 根据本地JSON对象设置内容
    public abstract void setContentByLocalJSON(JSONObject js);

    // 从内容获取本地JSON对象
    public abstract JSONObject getLocalJSONFromContent();

    // 获取同步操作
    public abstract int getSyncAction(Cursor c);

    // 设置全局唯一标识符
    public void setGid(String gid) {
        this.mGid = gid;
    }

    // 设置节点名称
    public void setName(String name) {
        this.mName = name;
    }

    // 设置最后修改时间
    public void setLastModified(long lastModified) {
        this.mLastModified = lastModified;
    }

    // 设置节点是否被删除
    public void setDeleted(boolean deleted) {
        this.mDeleted = deleted;
    }

    // 获取全局唯一标识符
    public String getGid() {
        return this.mGid;
    }

    // 获取节点名称
    public String getName() {
        return this.mName;
    }

    // 获取最后修改时间
    public long getLastModified() {
        return this.mLastModified;
    }

    // 获取节点是否被删除
    public boolean getDeleted() {
        return this.mDeleted;
    }

}