/*
 * Copyright 2016 (C) Tom Parker <thpr@users.sourceforge.net>
 * 
 * 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 pcgen.output.model;

import pcgen.base.util.Reference;
import freemarker.template.TemplateModelException;
import freemarker.template.TemplateNumberModel;

/**
 * A NumberModel wraps a Number object into a TemplateScalarModel
 */
public class NumberModel implements TemplateNumberModel, Reference<Number>
{
	/**
	 * The underlying Number object
	 */
	private final Number number;

	/**
	 * Constructs a new NumberModel with the given underlying Number
	 * 
	 * @param n
	 *            The Number this NumberModel wraps
	 */
	public NumberModel(Number n)
	{
		if (n == null)
		{
			throw new IllegalArgumentException("Number cannot be null");
		}
		this.number = n;
	}

	@Override
	public Number getAsNumber() throws TemplateModelException
	{
		return number;
	}

	@Override
	public Number get()
	{
		return number;
	}

}