migratedb.v1.integrationtest.database.mutation.IndependentDatabaseMutation.kt Maven / Gradle / Ivy
The newest version!
/*
* Copyright 2022-2024 The MigrateDB contributors
*
* 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 migratedb.v1.integrationtest.database.mutation
import java.sql.Connection
/**
* An arbitrary database schema mutation that does not interfere with or depend on other such mutations.
*/
interface IndependentDatabaseMutation {
/**
* @return `true` iff the mutation has been applied and its effects are visible to [connection].
*/
fun isApplied(connection: Connection): Boolean
/**
* Performs the mutation on [connection], so calling [isApplied] on the same connection will return `true`.
*/
fun apply(connection: Connection)
/**
* Undoes the database mutation on [connection], so if [isApplied] returned `true` before, it will afterwards return
* `false`.
*/
fun undo(connection: Connection)
}