package com.application.zhangshi_app_android.data.source.local;
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import com.application.zhangshi_app_android.data.source.LocalDataSource;
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/**
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* @author Ljj
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* @date 2023.03.01. 21:21
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* @desc 本地数据源 接口实现类
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* 配合 Room框架 或 SP本地存储 使用
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*/
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public class LocalDataSourceImpl implements LocalDataSource {
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private volatile static LocalDataSourceImpl INSTANCE = null;
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public static LocalDataSourceImpl getInstance() {
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if (INSTANCE == null) {
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synchronized (LocalDataSourceImpl.class) {
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if (INSTANCE == null) {
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INSTANCE = new LocalDataSourceImpl();
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}
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}
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}
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return INSTANCE;
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}
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public static void destroyInstance() {
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INSTANCE = null;
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}
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private LocalDataSourceImpl() {
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}
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}
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