Files
EhViewer/app/src/main/java/com/hippo/database/MSQLiteOpenHelper.kt
T
2022-07-19 11:49:51 +08:00

43 lines
1.4 KiB
Kotlin

/*
* Copyright 2017 Hippo Seven
*
* 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.
*/
package com.hippo.database
import android.content.Context
import android.database.sqlite.SQLiteDatabase
import android.database.sqlite.SQLiteOpenHelper
import com.hippo.util.SqlUtils
internal class MSQLiteOpenHelper(
context: Context?,
name: String?,
private val version: Int,
private val builder: MSQLiteBuilder
) : SQLiteOpenHelper(context, name, null, version) {
override fun onCreate(db: SQLiteDatabase) {
onUpgrade(db, 0, version)
}
override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
for (command in builder.getStatements(oldVersion, newVersion)) {
db.execSQL(command)
}
}
override fun onDowngrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
SqlUtils.dropAllTable(db)
onCreate(db)
}
}