/*
 * Copyright (C) 2008-2015 by Holger Arndt
 *
 * This file is part of the Java Data Mining Package (JDMP).
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership and licensing.
 *
 * JDMP 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
 * of the License, or (at your option) any later version.
 *
 * JDMP 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 JDMP; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

package org.jdmp.core.variable;

import org.jdmp.core.util.MatrixListToMatrixWrapper;
import org.ujmp.core.Matrix;

public class DefaultVariable extends AbstractVariable {
	private static final long serialVersionUID = -7192491915167470355L;

	private transient Matrix matrixListMatrix = null;

	public DefaultVariable() {
		super();
	}

	public Matrix getAsListMatrix() {
		if (matrixListMatrix == null) {
			matrixListMatrix = new MatrixListToMatrixWrapper(this);
		}
		return matrixListMatrix;
	}

	public Variable clone() {
		Variable v = Variable.Factory.labeledVariable(getLabel());
		for (Matrix m : this) {
			v.add(m.clone());
		}
		return v;
	}
}