/*
 * Copyright (c) 2011-2018 Contributors to the Eclipse Foundation
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 * which is available at https://www.apache.org/licenses/LICENSE-2.0.
 *
 * SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 */

package io.vertx.reactivex.ext.sql.impl;

import io.reactivex.Single;
import io.reactivex.SingleSource;
import io.reactivex.SingleTransformer;
import io.vertx.reactivex.ext.sql.SQLConnection;

Author:Thomas Segismont
/** * @author Thomas Segismont */
public class InTransactionSingle<T> implements SingleTransformer<T, T> { private final SQLConnection sqlConnection;
Params:
  • sqlConnection – the connection used for transaction management
/** * @param sqlConnection the connection used for transaction management */
public InTransactionSingle(SQLConnection sqlConnection) { this.sqlConnection = sqlConnection; } @Override public SingleSource<T> apply(Single<T> upstream) { return sqlConnection.rxSetAutoCommit(false) .andThen(upstream) .flatMap(item -> sqlConnection.rxCommit().andThen(Single.just(item))) .onErrorResumeNext(throwable -> { return sqlConnection.rxRollback().onErrorComplete() .andThen(sqlConnection.rxSetAutoCommit(true).onErrorComplete()) .andThen(Single.error(throwable)); }).flatMap(item -> sqlConnection.rxSetAutoCommit(true).andThen(Single.just(item))); } }