001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.core.objectmatrix.calculation;
025    
026    import org.ujmp.core.Matrix;
027    import org.ujmp.core.exceptions.MatrixException;
028    
029    public class Replace extends AbstractObjectCalculation {
030            private static final long serialVersionUID = -1668944121367955215L;
031    
032            private Object search = null;
033    
034            private Object replace = null;
035    
036            public Replace(Matrix matrix, Object search, Object replace) {
037                    super(matrix);
038                    this.search = search;
039                    this.replace = replace;
040            }
041    
042            
043            public Object getObject(long... coordinates) throws MatrixException {
044                    Object src = getSource().getAsObject(coordinates);
045    
046                    if (search == null) {
047                            if (src == null) {
048                                    return replace;
049                            }
050                    } else {
051                            if (search.equals(src)) {
052                                    return replace;
053                            }
054                    }
055    
056                    return src;
057            }
058    
059    }