package org.apache.turbine.util.db;

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache Turbine" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
 *    written permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    "Apache Turbine", nor may "Apache" appear in their name, without
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 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/**
 * Models a specific column in a specific table.
 *
 * @author <a href="mailto:dlr@collab.net">Daniel Rall</a>
 * @author <a href="mailto:jmcnally@collab.net">John McNally</a>
 * @deprecated Use <a href="http://db.apache.org/torque/">Torque</a>.
 */
public class TableColumn
{
    /**
     * The name of the database table.
     */
    protected String tableName;

    /**
     * The name of the database column.
     */
    protected String columnName;

    /**
     * The concatenation of the table name and column name separated with a
     * dot.
     */
    private String tableColumn;

    public TableColumn(String tableName, String columnName)
    {
        this.tableName = tableName;
        this.columnName = columnName;
        this.tableColumn = (tableName + '.' + columnName);
    }

    /**
     * Compares this object with another <code>TableColumn</code>.
     *
     * @param obj The object to compare to.
     */
    public boolean equals(Object obj)
    {
        if (this == obj)
        {
            return true;
        }
        else if (obj == null)
        {
            return false;
        }
        else if (obj instanceof TableColumn)
        {
            TableColumn tc = (TableColumn) obj;
            return (tableName.equals(tc.tableName) &&
                    columnName.equals(tc.columnName));
        }
        else
        {
            return false;
        }
    }

    /**
     * The concatenation of the table name and column name separated with a
     * dot.
     *
     * @return This object's string representation.
     */
    public String toString()
    {
        return tableColumn;
    }
}