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.impl; 025 026 import org.ujmp.core.Coordinates; 027 import org.ujmp.core.Matrix; 028 import org.ujmp.core.exceptions.MatrixException; 029 import org.ujmp.core.objectmatrix.stub.AbstractDenseObjectMatrix; 030 import org.ujmp.core.util.MathUtil; 031 032 public class DefaultDenseObjectMatrixMultiD extends AbstractDenseObjectMatrix { 033 private static final long serialVersionUID = 4312852021159459897L; 034 035 private Object[] values = null; 036 037 private long[] size = null; 038 039 private int length = 0; 040 041 public DefaultDenseObjectMatrixMultiD(Matrix m) throws MatrixException { 042 this.size = Coordinates.copyOf(m.getSize()); 043 this.length = (int) Coordinates.product(size); 044 this.values = new Object[length]; 045 if (m instanceof DefaultDenseObjectMatrixMultiD) { 046 Object[] v = ((DefaultDenseObjectMatrixMultiD) m).values; 047 System.arraycopy(v, 0, this.values, 0, v.length); 048 } else { 049 for (long[] c : m.allCoordinates()) { 050 setObject(m.getAsObject(c), c); 051 } 052 } 053 } 054 055 public DefaultDenseObjectMatrixMultiD(long... size) { 056 this.size = Coordinates.copyOf(size); 057 this.length = (int) Coordinates.product(size); 058 this.values = new Object[length]; 059 } 060 061 public DefaultDenseObjectMatrixMultiD(Object[] v, long... size) { 062 this.size = Coordinates.copyOf(size); 063 this.length = (int) Coordinates.product(size); 064 this.values = v; 065 } 066 067 public final long[] getSize() { 068 return size; 069 } 070 071 public final Object getObject(long... pos) { 072 return values[(int) MathUtil.pos2IndexRowMajor(size, pos)]; 073 } 074 075 public final void setObject(Object value, long... pos) { 076 values[(int) MathUtil.pos2IndexRowMajor(size, pos)] = value; 077 } 078 079 }