/**
 *    '$RCSfile: ANDRelation.java,v $'
 *
 *     '$Author: costa $'
 *       '$Date: 2006-12-01 22:02:06 $'
 *   '$Revision: 1.3 $'
 *
 *  For Details: http://kepler.ecoinformatics.org
 *
 * Copyright (c) 2003 The Regents of the University of California.
 * All rights reserved.
 *
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the
 * above copyright notice and the following two paragraphs appear in
 * all copies of this software.
 *
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
 * IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY
 * OF CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT,
 * UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 */
package org.ecoinformatics.datamanager.database;

/**
 * This class reprents an AND relation on its sub-components. Sub-components
 * can be conditions, ANDRelations and ORRelations
 * 
 * @author tao
 */
public class ANDRelation extends LogicalRelation
{
    /**
     * Default constructor
     *
     */
	public ANDRelation()
	{
		
	}
    
    
    /*
     * Instance methods
     */
	 
	/**
	 * Transfer an ANDRelation to sql string
	 * @return sql string of ANDRelation
	 * @throws UnWellFormedQueryException
	 */
	public String toSQLString() throws UnWellFormedQueryException
	{
		return transferToString(AND);
	}
    
}