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dbUnit is a JUnit extension (also usable from Ant and Maven) targeted for database-driven projects that, among other things, puts your database into a known state between test runs. This is an excellent way to avoid the myriad of problems that can occur when one test case corrupts the database and causes subsequent tests to fail or exacerbate the damage.

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/*
 *
 * The DbUnit Database Testing Framework
 * Copyright (C)2002-2004, DbUnit.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

package org.dbunit.dataset;


/**
 * A table represents a collection of tabular data.
 *
 * @author Manuel Laflamme
 * @version $Revision: 746 $
 * @since Feb 17, 2002
 */
public interface ITable
{
    public static final Object NO_VALUE = new Object();

    /**
     * Returns this table metadata.
     */
    public ITableMetaData getTableMetaData();

    /**
     * Returns this table row count.
     */
    public int getRowCount();

    /**
     * Returns this table value for the specified row and column.
     * @param row The row index, starting with 0
     * @param column The name of the column
     * @return The value
     *
     * @throws NoSuchColumnException if specified column name do not exist in
     * this table
     * @throws RowOutOfBoundsException if specified row is less than zero or
     * equals or greater than getRowCount
     */
    public Object getValue(int row, String column) throws DataSetException;
}