/* * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.rowset.internal; import com.sun.rowset.JdbcRowSetResourceBundle;import java.sql.*;import javax.sql.*;import java.io.*;import java.util.*; /** * A class used internally to manage a <code>CachedRowSet</code> object's * insert row.  This class keeps track of the number of columns in the * insert row and which columns have had a value inserted.  It provides * methods for retrieving a column value, setting a column value, and finding * out whether the insert row is complete. */public class InsertRow extends BaseRow implements Serializable, Cloneable { /** * An internal <code>BitSet</code> object used to keep track of the * columns in this <code>InsertRow</code> object that have had a value * inserted. */    private BitSet colsInserted; /** * The number of columns in this <code>InsertRow</code> object. */    private int cols;     private JdbcRowSetResourceBundle resBundle; /** * Creates an <code>InsertRow</code> object initialized with the * given number of columns, an array for keeping track of the * original values in this insert row, and a * <code>BitSet</code> object with the same number of bits as * there are columns. * * @param numCols an <code>int</code> indicating the number of columns *                in this <code>InsertRow</code> object */    public InsertRow(int numCols) {        origVals = new Object[numCols];        colsInserted = new BitSet(numCols);        cols = numCols;        try {           resBundle = JdbcRowSetResourceBundle.getJdbcRowSetResourceBundle();        } catch(IOException ioe) {            throw new RuntimeException(ioe);        }    } /** * Sets the bit in this <code>InsertRow</code> object's internal * <code>BitSet</code> object that corresponds to the specified column * in this <code>InsertRow</code> object. Setting a bit indicates * that a value has been set. * * @param col the number of the column to be marked as inserted; *            the first column is <code>1</code> */    protected void markColInserted(int col) {        colsInserted.set(col);    } /** * Indicates whether this <code>InsertRow</code> object has a value * for every column that cannot be null. * @param RowSetMD the <code>RowSetMetaData</code> object for the *                 <code>CachedRowSet</code> object that maintains this *                 <code>InsertRow</code> object * @return <code>true</code> if this <code>InsertRow</code> object is *         complete; <code>false</code> otherwise * @throws SQLException if there is an error accessing data */    public boolean isCompleteRow(RowSetMetaData RowSetMD) throws SQLException {        for (int i = 0; i < cols; i++) {            if (colsInserted.get(i) == false &&                RowSetMD.isNullable(i + 1) ==                ResultSetMetaData.columnNoNulls) {                return false;            }         }        return true;    } /** * Clears all the bits in the internal <code>BitSet</code> object * maintained by this <code>InsertRow</code> object.  Clearing all the bits * indicates that none of the columns have had a value inserted. */    public void initInsertRow() {        for (int i = 0; i < cols; i++) {            colsInserted.clear(i);        }    } /** * Retrieves the value of the designated column in this * <code>InsertRow</code> object.  If no value has been inserted * into the designated column, this method throws an * <code>SQLException</code>. * * @param idx the column number of the value to be retrieved; *            the first column is <code>1</code> * @throws SQLException if no value has been inserted into *                                   the designated column */    public Object getColumnObject(int idx) throws SQLException {        if (colsInserted.get(idx - 1) == false) {            throw new SQLException(resBundle.handleGetObject("insertrow.novalue").toString());        }        return (origVals[idx - 1]);    } /** * Sets the element in this <code>InsertRow</code> object's * internal array of original values that corresponds to the * designated column with the given value.  If the third * argument is <code>true</code>, * which means that the cursor is on the insert row, this * <code>InsertRow</code> object's internal <code>BitSet</code> object * is set so that the bit corresponding to the column being set is * turned on. * * @param idx the number of the column in the insert row to be set; *              the first column is <code>1</code> * @param val the value to be set */    public void setColumnObject(int idx, Object val) {        origVals[idx - 1] = val;        markColInserted(idx - 1);    }     /**     * This method re populates the resBundle     * during the deserialization process     *     */    private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {        // Default state initialization happens here        ois.defaultReadObject();        // Initialization of transient Res Bundle happens here .        try {           resBundle = JdbcRowSetResourceBundle.getJdbcRowSetResourceBundle();        } catch(IOException ioe) {            throw new RuntimeException(ioe);        }     }     static final long serialVersionUID = 1066099658102869344L;}