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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;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/**
 * Specialized ITableMetaData implementation that convert the table name and
 * column names to lower case. Used in DbUnit own test suite to verify that
 * operations are case insensitive.
 *
 * @author Manuel Laflamme
 * @version $Revision$
 * @since Feb 14, 2003
 */
public class LowerCaseTableMetaData extends AbstractTableMetaData
{

    /**
     * Logger for this class
     */
    private static final Logger logger = LoggerFactory.getLogger(LowerCaseTableMetaData.class);

    private final String _tableName;
    private final Column[] _columns;
    private final Column[] _primaryKeys;

    public LowerCaseTableMetaData(String tableName, Column[] columns)
            //throws DataSetException
    {
        this(tableName, columns, new Column[0]);
    }

    public LowerCaseTableMetaData(String tableName, Column[] columns,
            String[] primaryKeys) //throws DataSetException
    {
        this(tableName, columns, Columns.getColumns(primaryKeys, columns) );
    }

    public LowerCaseTableMetaData(ITableMetaData metaData) throws DataSetException
    {
        this(metaData.getTableName(), metaData.getColumns(),
                metaData.getPrimaryKeys());
    }

    public LowerCaseTableMetaData(String tableName, Column[] columns,
            Column[] primaryKeys) //throws DataSetException
    {
        _tableName = tableName.toLowerCase();
        _columns = createLowerColumns(columns);
        _primaryKeys = createLowerColumns(primaryKeys);
    }

    private Column[] createLowerColumns(Column[] columns)
    {
        logger.debug("createLowerColumns(columns={}) - start", columns);

        Column[] lowerColumns = new Column[columns.length];
        for (int i = 0; i < columns.length; i++)
        {
            lowerColumns[i] = createLowerColumn(columns[i]);
        }

        return lowerColumns;
    }

    private Column createLowerColumn(Column column)
    {
        logger.debug("createLowerColumn(column={}) - start", column);

        return new Column(
                column.getColumnName().toLowerCase(),
                column.getDataType(),
                column.getSqlTypeName(),
                column.getNullable(),
                column.getDefaultValue());
    }

    ////////////////////////////////////////////////////////////////////////////
    // ITableMetaData interface

    public String getTableName()
    {
        return _tableName;
    }

    public Column[] getColumns()
    {
        return _columns;
    }

    public Column[] getPrimaryKeys()
    {
        return _primaryKeys;
    }
}