1 /* 2 * Copyright (c) 2000, 2001, 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 26 package javax.sql; 27 28 import java.sql.*; 29 30 /** 31 * The interface that a <code>RowSet</code> object implements in order to 32 * present itself to a <code>RowSetReader</code> or <code>RowSetWriter</code> 33 * object. The <code>RowSetInternal</code> interface contains 34 * methods that let the reader or writer access and modify the internal 35 * state of the rowset. 36 * 37 * @since 1.4 38 */ 39 40 public interface RowSetInternal { 41 42 /** 43 * Retrieves the parameters that have been set for this 44 * <code>RowSet</code> object's command. 45 * 46 * @return an array of the current parameter values for this <code>RowSet</code> 47 * object's command 48 * @exception SQLException if a database access error occurs 49 */ 50 Object[] getParams() throws SQLException; 51 52 /** 53 * Retrieves the <code>Connection</code> object that was passed to this 54 * <code>RowSet</code> object. 55 * 56 * @return the <code>Connection</code> object passed to the rowset 57 * or <code>null</code> if none was passed 58 * @exception SQLException if a database access error occurs 59 */ 60 Connection getConnection() throws SQLException; 61 62 /** 63 * Sets the given <code>RowSetMetaData</code> object as the 64 * <code>RowSetMetaData</code> object for this <code>RowSet</code> 65 * object. The <code>RowSetReader</code> object associated with the rowset 66 * will use <code>RowSetMetaData</code> methods to set the values giving 67 * information about the rowset's columns. 68 * 69 * @param md the <code>RowSetMetaData</code> object that will be set with 70 * information about the rowset's columns 71 * 72 * @exception SQLException if a database access error occurs 73 */ 74 void setMetaData(RowSetMetaData md) throws SQLException; 75 76 /** 77 * Retrieves a <code>ResultSet</code> object containing the original 78 * value of this <code>RowSet</code> object. 79 * <P> 80 * The cursor is positioned before the first row in the result set. 81 * Only rows contained in the result set returned by the method 82 * <code>getOriginal</code> are said to have an original value. 83 * 84 * @return the original value of the rowset 85 * @exception SQLException if a database access error occurs 86 */ 87 public ResultSet getOriginal() throws SQLException; 88 89 /** 90 * Retrieves a <code>ResultSet</code> object containing the original value 91 * of the current row only. If the current row has no original value, 92 * an empty result set is returned. If there is no current row, 93 * an exception is thrown. 94 * 95 * @return the original value of the current row as a <code>ResultSet</code> 96 * object 97 * @exception SQLException if a database access error occurs or this method 98 * is called while the cursor is on the insert row, before the 99 * first row, or after the last row 100 */ 101 public ResultSet getOriginalRow() throws SQLException; 102 103 } 104
