0N/A/*
2362N/A * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
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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 *
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 *
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.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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0N/A */
0N/A
0N/Apackage com.sun.rowset.internal;
0N/A
0N/Aimport java.sql.*;
0N/Aimport java.io.*;
0N/A
0N/A/**
0N/A * The abstract base class from which the classes <code>Row</code>
0N/A * The class <code>BaseRow</code> stores
0N/A * a row's original values as an array of <code>Object</code>
0N/A * values, which can be retrieved with the method <code>getOrigRow</code>.
0N/A * This class also provides methods for getting and setting individual
0N/A * values in the row.
0N/A * <P>
0N/A * A row's original values are the values it contained before it was last
0N/A * modified. For example, when the <code>CachedRowSet</code>method
0N/A * <code>acceptChanges</code> is called, it will reset a row's original
0N/A * values to be the row's current values. Then, when the row is modified,
0N/A * the values that were previously the current values will become the row's
0N/A * original values (the values the row had immediately before it was modified).
0N/A * If a row has not been modified, its original values are its initial values.
0N/A * <P>
0N/A * Subclasses of this class contain more specific details, such as
0N/A * the conditions under which an exception is thrown or the bounds for
0N/A * index parameters.
0N/A */
0N/Apublic abstract class BaseRow implements Serializable, Cloneable {
0N/A
0N/A/**
0N/A * The array containing the original values for this <code>BaseRow</code>
0N/A * object.
0N/A * @serial
0N/A */
0N/A protected Object[] origVals;
0N/A
0N/A/**
0N/A * Retrieves the values that this row contained immediately
0N/A * prior to its last modification.
0N/A *
0N/A * @return an array of <code>Object</code> values containing this row's
0N/A * original values
0N/A */
0N/A public Object[] getOrigRow() {
0N/A return origVals;
0N/A }
0N/A
0N/A/**
0N/A * Retrieves the array element at the given index, which is
0N/A * the original value of column number <i>idx</i> in this row.
0N/A *
0N/A * @param idx the index of the element to return
0N/A * @return the <code>Object</code> value at the given index into this
0N/A * row's array of original values
0N/A * @throws <code>SQLException</code> if there is an error
0N/A */
0N/A public abstract Object getColumnObject(int idx) throws SQLException;
0N/A
0N/A/**
0N/A * Sets the element at the given index into this row's array of
0N/A * original values to the given value. Implementations of the classes
0N/A * <code>Row</code> and determine what happens
0N/A * when the cursor is on the insert row and when it is on any other row.
0N/A *
0N/A * @param idx the index of the element to be set
0N/A * @param obj the <code>Object</code> to which the element at index
0N/A * <code>idx</code> to be set
0N/A * @throws <code>SQLException</code> if there is an error
0N/A */
0N/A public abstract void setColumnObject(int idx, Object obj) throws SQLException;
0N/A}