package com.dayu.henanlibrary.dao;
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import android.content.Context;
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import android.os.Environment;
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import androidx.annotation.NonNull;
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import androidx.room.Room;
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import androidx.room.migration.Migration;
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import androidx.sqlite.db.SupportSQLiteDatabase;
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import java.io.File;
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/**
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* Copyright (C), 2023,
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* Author: zuo
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* Date: 2023-11-06 16:58
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* Description: 创建数据库实例
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*/
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public class HNBaseDaoSingleton {
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public static AppDatabase baseDao;
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public static AppDatabase AsynchBaseDao;
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public static String SqlitePath = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + ".dayu" + File.separator + "data" + File.separator;
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//MyFileUtil.SqlitePath +
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public static AppDatabase getInstance(Context context) {
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if (baseDao == null) {
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baseDao = Room.databaseBuilder(
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context,
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AppDatabase.class,
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SqlitePath + "ConfigurationData"
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).allowMainThreadQueries().addMigrations(migration_2_3).build();
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}
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return baseDao;
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}
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static Migration migration_2_3 = new Migration(2, 3) {
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@Override
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public void migrate(@NonNull SupportSQLiteDatabase database) {
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// 在此处编写从版本 2 到版本 3 的迁移逻辑
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// 例如，你可以执行 SQL 命令来修改表结构，迁移数据等操作
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// 如果需要，你还可以执行其他的 SQL 命令来迁移数据等操作
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}
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};
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public static AppDatabase getAsynchInstance(Context context) {
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if (AsynchBaseDao == null) {
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AsynchBaseDao = Room.databaseBuilder(
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context,
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AppDatabase.class,
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SqlitePath + "ConfigurationData"
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).build();
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}
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return AsynchBaseDao;
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}
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}
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