package com.application.zhangshi_app_android.data.source.local;

import com.application.zhangshi_app_android.data.source.LocalDataSource;

/**
 * @author Ljj
 * @date 2023.03.01. 21:21
 * @desc 本地数据源 接口实现类
 *       配合 Room框架 或 SP本地存储 使用
 */
public class LocalDataSourceImpl implements LocalDataSource {
    private volatile static LocalDataSourceImpl INSTANCE = null;

    public static LocalDataSourceImpl getInstance() {
        if (INSTANCE == null) {
            synchronized (LocalDataSourceImpl.class) {
                if (INSTANCE == null) {
                    INSTANCE = new LocalDataSourceImpl();
                }
            }
        }
        return INSTANCE;
    }

    public static void destroyInstance() {
        INSTANCE = null;
    }

    private LocalDataSourceImpl() {

    }
}