abstracttablemetadata.java

采用 Java 编写的数据库系统单元测试程序。

/*
 *
 * 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;

import org.dbunit.dataset.filter.IColumnFilter;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Manuel Laflamme
 * @version $Revision: 554 $
 * @since Mar 8, 2002
 */
public abstract class AbstractTableMetaData implements ITableMetaData
{

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

    private static final Column[] EMPTY_COLUMNS = new Column[0];

    protected static Column[] getPrimaryKeys(Column[] columns, String[] keyNames)
    {
        logger.debug("getPrimaryKeys(columns=" + columns + ", keyNames=" + keyNames + ") - start");

        if (keyNames == null || keyNames.length == 0)
        {
            return EMPTY_COLUMNS;
        }

        List keyList = new ArrayList();
        for (int i = 0; i < keyNames.length; i++)
        {
            Column primaryKey = DataSetUtils.getColumn(keyNames[i], columns);
            if (primaryKey != null)
            {
                keyList.add(primaryKey);
            }
        }

        return (Column[])keyList.toArray(new Column[0]);
    }

    protected static Column[] getPrimaryKeys(String tableName, Column[] columns,
            IColumnFilter columnFilter)
    {
        logger.debug("getPrimaryKeys(tableName=" + tableName + ", columns=" + columns + ", columnFilter="
                + columnFilter + ") - start");

        List keyList = new ArrayList();
        for (int i = 0; i < columns.length; i++)
        {
            Column column = columns[i];
            if (columnFilter.accept(tableName, column))
            {
                keyList.add(column);
            }
        }

        return (Column[])keyList.toArray(new Column[0]);
    }
}