2741N/A * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * The reference implementation of a JDBC Rowset synchronization provider 0N/A * providing optimistic synchronization with a relational datastore 0N/A * using any JDBC technology-enabled driver. 0N/A * <h3>1.0 Backgroud</h3> 0N/A * This synchronization provider is registered with the 0N/A * <code>SyncFactory</code> by default as the 0N/A * <code>com.sun.rowset.providers.RIOptimisticProvider</code>. 0N/A * As an extension of the <code>SyncProvider</code> abstract 0N/A * class, it provides the reader and writer classes required by disconnected 0N/A * rowsets as <code>javax.sql.RowSetReader</code> and <code>javax.sql.RowSetWriter</code> 0N/A * interface implementations. As a reference implementation, 0N/A * <code>RIOptimisticProvider</code> provides a 0N/A * fully functional implementation offering a medium grade classification of 0N/A * syncrhonization, namely GRADE_CHECK_MODIFIED_AT_COMMIT. A 0N/A * disconnected <code>RowSet</code> implementation using the 0N/A * <code>RIOptimisticProvider</code> can expect the writer to 0N/A * check only rows that have been modified in the <code>RowSet</code> against 0N/A * the values in the data source. If there is a conflict, that is, if a value 0N/A * in the data source has been changed by another party, the 0N/A * <code>RIOptimisticProvider</code> will not write any of the changes to the data 0N/A * source and will throw a <code>SyncProviderException</code> object. 0N/A * <h3>2.0 Usage</h3> 0N/A * Standard disconnected <code>RowSet</code> implementations may opt to use this 0N/A * <code>SyncProvider</code> implementation in one of two ways: 0N/A * <LI>By specifically calling the <code>setSyncProvider</code> method 0N/A defined in the <code>CachedRowSet</code> interface 0N/A * CachedRowset crs = new FooCachedRowSetImpl(); 0N/A * crs.setSyncProvider("com.sun.rowset.providers.RIOptimisticProvider"); 0N/A * <LI>By specifying it in the constructor of the <code>RowSet</code> 0N/A * CachedRowset crs = new FooCachedRowSetImpl( 0N/A * "com.sun.rowset.providers.RIOptimisticProvider"); 0N/A * Note that because the <code>RIOptimisticProvider</code> implementation is 0N/A * the default provider, it will always be the provider when no provider ID is 0N/A * specified to the constructor. 0N/A * See the standard <code>RowSet</code> reference implementations in the 0N/A * <code>com.sun.rowset</code> package for more details. 0N/A * @author Jonathan Bruce 0N/A * @see javax.sql.rowset.spi.SyncProvider 0N/A * @see javax.sql.rowset.spi.SyncProviderException 0N/A * @see javax.sql.rowset.spi.SyncFactory 0N/A * @see javax.sql.rowset.spi.SyncFactoryException 2802N/A * The unique provider identifier. 0N/A * The vendor name of this SyncProvider implementation 0N/A * The version number of this SyncProvider implementation 0N/A * Creates an <code>RIOptimisticProvider</code> object initialized with the 0N/A * fully qualified class name of this <code>SyncProvider</code> implementation 0N/A * and a default reader and writer. 0N/A * This provider is available to all disconnected <code>RowSet</code> implementations 0N/A * as the default persistence provider. 0N/A * Returns the <code>'javax.sql.rowset.providers.RIOptimisticProvider'</code> 0N/A * provider identification string. 0N/A * @return String Provider ID of this persistence provider 0N/A * Returns the <code>javax.sql.RowSetWriter</code> object for this 0N/A * <code>RIOptimisticProvider</code> object. This is the writer that will 0N/A * write changes made to the <code>Rowset</code> object back to the data source. 0N/A * @return the <code>javax.sql.RowSetWriter</code> object for this 0N/A * <code>RIOptimisticProvider</code> object 0N/A * Returns the <code>javax.sql.RowSetReader</code> object for this 0N/A * <code>RIOptimisticProvider</code> object. This is the reader that will 0N/A * populate a <code>RowSet</code> object using this <code>RIOptimisticProvider</code>. 0N/A * @return the <code>javax.sql.RowSetReader</code> object for this 0N/A * <code>RIOptimisticProvider</code> object 0N/A * Returns the <code>SyncProvider</code> grade of synchronization that 0N/A * <code>RowSet</code> objects can expect when using this 0N/A * implementation. As an optimisic synchonization provider, the writer 0N/A * will only check rows that have been modified in the <code>RowSet</code> 0N/A * Modifies the data source lock severity according to the standard 0N/A * <code>SyncProvider</code> classifications. 0N/A * @param datasource_lock An <code>int</code> indicating the level of locking to be 0N/A * set; must be one of the following constants: 0N/A * SyncProvider.DATASOURCE_NO_LOCK, 0N/A * SyncProvider.DATASOURCE_ROW_LOCK, 0N/A * SyncProvider.DATASOURCE_TABLE_LOCK, 0N/A * SyncProvider.DATASOURCE_DB_LOCk 0N/A * @throws SyncProviderException if the parameter specified is not 0N/A * <code>SyncProvider.DATASOURCE_NO_LOCK</code> 0N/A * Returns the active data source lock severity in this 0N/A * reference implementation of the <code>SyncProvider</code> 0N/A * @return <code>SyncProvider.DATASOURCE_NO_LOCK</code>. 0N/A * The reference implementation does not support data source locks. 0N/A * Returns the supported updatable view abilities of the 0N/A * reference implementation of the <code>SyncProvider</code> 0N/A * @return <code>SyncProvider.NONUPDATABLE_VIEW_SYNC</code>. The 0N/A * the reference implementation does not support updating tables 0N/A * that are the source of a view. 0N/A * Returns the release version ID of the Reference Implementation Optimistic 0N/A * Synchronization Provider. 0N/A * @return the <code>String</code> detailing the version number of this SyncProvider 2802N/A * Returns the vendor name of the Reference Implementation Optimistic 0N/A * @return the <code>String</code> detailing the vendor name of this 2741N/A // Default state initialization happens here 2741N/A // Initialization of transient Res Bundle happens here .