framework/src/net/sf/tapestry/RequiredParameterException.java

//
// Tapestry Web Application Framework
// Copyright (c) 2000-2002 by Howard Lewis Ship
//
// Howard Lewis Ship
// http://sf.net/projects/tapestry
// mailto:hship@users.sf.net
//
// This library is free software.
//
// You may redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License as published by the Free Software Foundation.
//
// Version 2.1 of the license should be included with this distribution in
// the file LICENSE, as well as License.html. If the license is not
// included with this distribution, you may find a copy at the FSF web
// site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
// Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied waranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//

package net.sf.tapestry;

/**
 *  Exception thown when an {@link IBinding} required by a component does not
 *  exist, or when the value for the binding is null (and the component
 *  requires a non-null value).
 *
 *  @author Howard Lewis Ship
 *  @version $Id$
 **/

public class RequiredParameterException extends RequestCycleException
{
	private String parameterName;
	private transient IBinding binding;

	public RequiredParameterException(
		IComponent component,
		String parameterName,
		IBinding binding)
	{
		super(
			Tapestry.getString(
				"RequiredParameterException.message",
				parameterName,
				component.getExtendedId()),
			component);

		this.parameterName = parameterName;
		this.binding = binding;
	}

	public String getParameterName()
	{
		return parameterName;
	}

	public IBinding getBinding()
	{
		return binding;
	}
}