PositionNotOccupiedException.java

/*
*   EuroCarbDB, a framework for carbohydrate bioinformatics
*
*   Copyright (c) 2006-2009, Eurocarb project, or third-party contributors as
*   indicated by the @author tags or express copyright attribution
*   statements applied by the authors.  
*
*   This copyrighted material is made available to anyone wishing to use, modify,
*   copy, or redistribute it subject to the terms and conditions of the GNU
*   Lesser General Public License, as published by the Free Software Foundation.
*   A copy of this license accompanies this distribution in the file LICENSE.txt.
*
*   This program 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.
*
*   Last commit: $Rev: 1186 $ by $Author: glycoslave $ on $Date:: 2009-06-10 #$  
*/

package org.eurocarbdb.sugar;

/** 
* 
*
*   @author mjh
*/
public class PositionNotOccupiedException extends SugarException
{
    final Attachable target;
    
    final int position;
    
    public PositionNotOccupiedException( Attachable entity, int position )
    {
        this.target = entity;
        this.position = position;
    }
    
    
    public String getMessage()
    {
        return "Position '" 
            + position
            + "' of attachable object "
            + target
            + "' is not occupied"
        ;   
    }
}