content: /*
   * LibertyBans
   * Copyright © 2021 Anand Beh
   *
   * LibertyBans is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * LibertyBans is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with LibertyBans. If not, see <https://www.gnu.org/licenses/>
   * and navigate to version 3 of the GNU Affero General Public License.
   */
  
  package space.arim.libertybans.core.database.execute;
  
  /**
   * Transaction context, whose scope can include either an entire
   * database transaction, or statements made since a certain savepoint
   *
   */
  public interface Transaction {
  
  	/**
  	 * Sets the isolation level on this transaction
  	 *
  	 * @param isolationLevel the isolation level
  	 */
  	void setIsolation(int isolationLevel);
  
  	/**
  	 * Rolls back the enclosing scope
  	 *
  	 */
  	void rollback();
  
  	/**
  	 * Executes a nested transaction, using savepoints
  	 *
  	 * @param command the operation to run
  	 * @param <R> the return value
  	 * @return the result
  	 */
  	<R> R executeNested(SQLTransactionalFunction<R> command);
  }
  