1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package javax.sql; 19 20 import java.sql.Connection; 21 import java.sql.ResultSet; 22 import java.sql.SQLException; 23 24 /** 25 * An interface provided by a {@code RowSet} object to let either a {@code 26 * RowSetReader} or a {@code RowSetWriter} access its internal state, thereby 27 * providing facilities to read and update the state of the {@code RowSet}. 28 */ 29 public interface RowSetInternal { 30 31 /** 32 * Gets the connection associated with this {@code RowSet} object. 33 * 34 * @return the connection or {@code null}. 35 * @throws SQLException 36 * if there is a problem accessing the database. 37 */ 38 public Connection getConnection() throws SQLException; 39 40 /** 41 * Gets the {@code ResultSet} that was the original (unmodified) content of 42 * the {@code RowSet}. 43 * <p> 44 * The {@code ResultSet}'s cursor is positioned before the first row of 45 * data. 46 * 47 * @return the {@code ResultSet} that contained the original data value of 48 * the {@code RowSet}. 49 * @throws SQLException 50 * if there is a problem accessing the database. 51 */ 52 public ResultSet getOriginal() throws SQLException; 53 54 /** 55 * Gets the original value of the current row only. If the current row did 56 * not have an original value, then an empty value is returned. 57 * 58 * @return a {@code ResultSet} containing the value of the current row only. 59 * @throws SQLException 60 * if there is a problem accessing the database, or if the 61 * cursor is not on a valid row (before the first row, after the 62 * last one or pointing to the insert row). 63 */ 64 public ResultSet getOriginalRow() throws SQLException; 65 66 /** 67 * Gets the parameter values that have been set for this {@code RowSet}'s 68 * command. 69 * 70 * @return the values of parameters that have been set. 71 * @throws SQLException 72 * if there is a problem accessing the database. 73 */ 74 public Object[] getParams() throws SQLException; 75 76 /** 77 * Sets {@code RowSetMetaData} for this {@code RowSet}. The {@code 78 * RowSetMetaData} is used by a {@code RowSetReader} to set values giving 79 * information about the {@code RowSet}'s columns. 80 * 81 * @param theMetaData 82 * holds the metadata about the {@code RowSet}'s columns. 83 * @throws SQLException 84 * if there is a problem accessing the database. 85 */ 86 public void setMetaData(RowSetMetaData theMetaData) throws SQLException; 87 } 88
