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/*
 * JasperReports - Free Java Reporting Library.
 * Copyright (C) 2001 - 2023 Cloud Software Group, Inc. All rights reserved.
 * http://www.jaspersoft.com
 *
 * Unless you have purchased a commercial license agreement from Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of JasperReports.
 *
 * JasperReports 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 3 of the License, or
 * (at your option) any later version.
 *
 * JasperReports 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 JasperReports. If not, see .
 */
package net.sf.jasperreports.compilers;

import java.io.Serializable;

import net.sf.jasperreports.engine.JRConstants;

/**
 * @author Lucian Chirita ([email protected])
 */
public class ConstantExpressionEvaluation implements DirectExpressionEvaluation, Serializable
{

	private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
	
	private static ConstantExpressionEvaluation NULL_EVALUATION = new ConstantExpressionEvaluation(null);
	
	public static ConstantExpressionEvaluation nullEvaluation()
	{
		return NULL_EVALUATION;
	}
	
	private final Object value;
	
	public ConstantExpressionEvaluation(Object value)
	{
		this.value = value;
	}
	
	@Override
	public EvaluationType getType()
	{
		return EvaluationType.CONSTANT;
	}
	
	public Object getValue()
	{
		return value;
	}

}