Java tutorial
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2018 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * General Public License Version 2 only ("GPL") or the Common Development * and Distribution License("CDDL") (collectively, the "License"). You * may not use this file except in compliance with the License. You can * obtain a copy of the License at * https://oss.oracle.com/licenses/CDDL+GPL-1.1 * or LICENSE.txt. See the License for the specific * language governing permissions and limitations under the License. * * When distributing the software, include this License Header Notice in each * file and include the License file at LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. */ package javax.resource.cci; import javax.resource.ResourceException; /** The LocalTransaction defines a transaction demarcation interface for * resource manager local transactions. Note that this interface is * used for application level local transaction demarcation. The * system contract level LocalTransaction interface (as defined in * the <code>javax.resource.spi</code> package) is used by the container * for local transaction management. * * <p>A local transaction is managed internal to a resource manager. There * is no external transaction manager involved in the coordination of * such transactions. * * <p>A CCI implementation can (but is not required to) implement the * LocalTransaction interface. If the LocalTransaction interface is supported * by a CCI implementation, then the method * <code>Connection.getLocalTransaction</code> should return a * LocalTransaction instance. A component can then use the * returned LocalTransaction to demarcate a resource manager local transaction * (associated with the Connection instance) on the underlying EIS * instance. * * @author Rahul Sharma * @since 0.8 * @see javax.resource.cci.Connection **/ public interface LocalTransaction { /** Begins a local transaction on an EIS instance. * * @throws ResourceException Failed to begin a local * transaction. Examples of * error cases are: * <UL> * <LI>Resource adapter internal or EIS-specific * error * <LI>Connection is already participating in a * local or JTA transaction * </UL> **/ public void begin() throws ResourceException; /** Commits the current local transaction and release all locks held * by the underlying EIS instance. * * @throws ResourceException Failed to commit a local * transaction. Examples of * error cases are: * <UL> * <LI> Resource adapter internal or EIS-specific error * <LI> Violation of integrity constraints, deadlock * detection, communication failure during * transaction completion, or any retry requirement * <LI> Connection is participating in an active JTA * transaction * <LI> Invalid transaction context; commit * operation invoked without an active * transaction context * </UL> **/ public void commit() throws ResourceException; /** Rollbacks the current resource manager local transaction. * * @throws ResourceException Failed to rollback a local * transaction. Examples of * error cases are: * <UL> * <LI> Resource adapter internal or EIS-specific error * <LI> Connection is participating in an active JTA * transaction * <LI> Invalid transaction context; rollback * operation invoked without an active * transaction context * </UL> **/ public void rollback() throws ResourceException; }