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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;


/**
 * Thrown to indicate that a database column has been accessed that does not
 * exist. 
 * 
 * @author Manuel Laflamme
 * @version $Revision$
 * @since Feb 17, 2002
 */
public class NoSuchColumnException extends DataSetException
{
    /**
     * @deprecated since 2.3.0. Prefer constructor taking a table/columnName as argument
     */
    public NoSuchColumnException()
    {
    }
    
    /**
     * @deprecated since 2.3.0. Prefer constructor taking a table/columnName as argument
     */
    public NoSuchColumnException(String msg)
    {
        super(msg);
    }

    /**
     * Creates an exception using the given table name + column name
     * @param tableName table in which the column was not found. Can be null
     * @param columnName the column that was not found
     * @since 2.3.0
     */
    public NoSuchColumnException(String tableName, String columnName)
    {
        this(tableName, columnName, null);
    }

    /**
     * Creates an exception using the given table name + column name
     * @param tableName table in which the column was not found. Can be null
     * @param columnName the column that was not found
     * @param msg Additional message to append to the exception text
     * @since 2.3.0
     */
    public NoSuchColumnException(String tableName, String columnName, String msg)
    {
        super(buildText(tableName, columnName, msg));
    }

	/**
	 * @param msg
	 * @param e
     * @deprecated since 2.3.0. Prefer constructor taking a table/columnName as argument
	 */
	public NoSuchColumnException(String msg, Throwable e)
    {
        super(msg, e);
    }

    /**
     * @param e
     * @deprecated since 2.3.0. Prefer constructor taking a table/columnName as argument
     */
    public NoSuchColumnException(Throwable e)
    {
        super(e);
    }
    
    
    private static String buildText(String tableName, String columnName, String message) {
    	StringBuffer sb = new StringBuffer();
    	if(tableName != null){
    		sb.append(tableName).append(".");
    	}
    	sb.append(columnName);
    	if(message != null) {
    		sb.append(" - ").append(message);
    	}
		return sb.toString();
	}

}