com.udaan.r2dbi.Transaction.kt Maven / Gradle / Ivy

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/*
 *  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.udaan.r2dbi

import com.udaan.r2dbi.sql.annotations.UseInvocationDecorator
import io.r2dbc.spi.IsolationLevel

@Retention(AnnotationRetention.RUNTIME)
@Target(AnnotationTarget.FUNCTION)
@UseInvocationDecorator(TransactionInvocationDecorator::class)
annotation class Transaction(
    /**
     * @return the transaction isolation level.  If not specified, invoke with the default isolation level.
     */
    val level: TransactionIsolationLevel = TransactionIsolationLevel.DEFAULT,
)

enum class TransactionIsolationLevel(internal val r2dbcLevel: IsolationLevel?) {
    READ_COMMITTED(IsolationLevel.READ_COMMITTED),
    READ_UNCOMMITTED(IsolationLevel.READ_UNCOMMITTED),
    REPEATABLE_READ(IsolationLevel.REPEATABLE_READ),
    SERIALIZABLE(IsolationLevel.SERIALIZABLE),
    DEFAULT(null)
}