1/* 2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package javax.sql.rowset.spi; 27 28import java.sql.SQLException; 29import java.io.Reader; 30 31import javax.sql.RowSetWriter; 32import javax.sql.rowset.*; 33import java.sql.Savepoint; 34 35/** 36 * A specialized interface that facilitates an extension of the standard 37 * <code>SyncProvider</code> abstract class so that it has finer grained 38 * transaction control. 39 * <p> 40 * If one or more disconnected <code>RowSet</code> objects are participating 41 * in a global transaction, they may wish to coordinate their synchronization 42 * commits to preserve data integrity and reduce the number of 43 * synchronization exceptions. If this is the case, an application should set 44 * the <code>CachedRowSet</code> constant <code>COMMIT_ON_ACCEPT_CHANGES</code> 45 * to <code>false</code> and use the <code>commit</code> and <code>rollback</code> 46 * methods defined in this interface to manage transaction boundaries. 47 * 48 * @since 1.5 49 */ 50public interface TransactionalWriter extends RowSetWriter { 51 52 /** 53 * Makes permanent all changes that have been performed by the 54 * <code>acceptChanges</code> method since the last call to either the 55 * <code>commit</code> or <code>rollback</code> methods. 56 * This method should be used only when auto-commit mode has been disabled. 57 * 58 * @throws SQLException if a database access error occurs or the 59 * <code>Connection</code> object within this <code>CachedRowSet</code> 60 * object is in auto-commit mode 61 */ 62 public void commit() throws SQLException; 63 64 /** 65 * Undoes all changes made in the current transaction. This method should be 66 * used only when auto-commit mode has been disabled. 67 * 68 * @throws SQLException if a database access error occurs or the <code>Connection</code> 69 * object within this <code>CachedRowSet</code> object is in auto-commit mode 70 */ 71 public void rollback() throws SQLException; 72 73 /** 74 * Undoes all changes made in the current transaction made prior to the given 75 * <code>Savepoint</code> object. This method should be used only when auto-commit 76 * mode has been disabled. 77 * 78 * @param s a <code>Savepoint</code> object marking a savepoint in the current 79 * transaction. All changes made before <i>s</i> was set will be undone. 80 * All changes made after <i>s</i> was set will be made permanent. 81 * @throws SQLException if a database access error occurs or the <code>Connection</code> 82 * object within this <code>CachedRowSet</code> object is in auto-commit mode 83 */ 84 public void rollback(Savepoint s) throws SQLException; 85} 86