/*
 * Copyright (C) 2002-2004 Red Hat Inc. All Rights Reserved.
 *
 * 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 com.arsdigita.bebop.parameters;

import com.arsdigita.bebop.event.ParameterEvent;
import com.arsdigita.bebop.event.ParameterListener;
import com.arsdigita.bebop.FormProcessException;
import com.arsdigita.bebop.parameters.ParameterData;


public class FloatValidationListener implements ParameterListener {

    public void validate(ParameterEvent e)
        throws FormProcessException {

        ParameterData d = e.getParameterData();
        String value = (String)d.getValue();

	if (!value.equals("")) {
        try {
            new Float(value);
        } catch (NumberFormatException ex) {
            d.invalidate();
            d.addError("Please enter a fractional number");
        }
    }
}
}
