/*
* Copyright (C) 2008-2015 by Holger Arndt
*
* This file is part of the Universal Java Matrix Package (UJMP).
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* UJMP 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.
*
* UJMP 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 UJMP; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package org.ujmp.core.objectmatrix.impl;
import org.ujmp.core.Matrix;
import org.ujmp.core.interfaces.HasObjectArray;
import org.ujmp.core.objectmatrix.stub.AbstractDenseObjectMatrix2D;
public class DefaultDenseObjectMatrix2D extends AbstractDenseObjectMatrix2D implements
HasObjectArray {
private static final long serialVersionUID = 8929799323811301397L;
private final Object[] values;
private final int rows;
private final int cols;
public DefaultDenseObjectMatrix2D(Matrix m) {
super(m.getRowCount(), m.getColumnCount());
this.rows = (int) m.getRowCount();
this.cols = (int) m.getColumnCount();
if (m instanceof DefaultDenseObjectMatrix2D) {
Object[] v = ((DefaultDenseObjectMatrix2D) m).values;
this.values = new Object[v.length];
System.arraycopy(v, 0, this.values, 0, v.length);
} else {
this.values = new Object[rows * cols];
for (long[] c : m.allCoordinates()) {
setObject(m.getAsObject(c), c);
}
}
if (m.getMetaData() != null) {
setMetaData(m.getMetaData().clone());
}
}
public DefaultDenseObjectMatrix2D(int rows, int columns) {
super(rows, columns);
this.rows = rows;
this.cols = columns;
this.values = new Object[rows * columns];
}
public DefaultDenseObjectMatrix2D(Object[] v, int rows, int cols) {
super(rows, cols);
this.rows = rows;
this.cols = cols;
this.values = v;
}
public Object getObject(long row, long column) {
return values[(int) (column * rows + row)];
}
public void setObject(Object value, long row, long column) {
values[(int) (column * rows + row)] = value;
}
public Object getObject(int row, int column) {
return values[column * rows + row];
}
public void setObject(Object value, int row, int column) {
values[column * rows + row] = value;
}
public final Matrix copy() {
Object[] result = new Object[values.length];
System.arraycopy(values, 0, result, 0, values.length);
Matrix m = new DefaultDenseObjectMatrix2D(result, rows, cols);
if (getMetaData() != null) {
m.setMetaData(getMetaData().clone());
}
return m;
}
public final Matrix transpose() {
final Object[] result = new Object[cols * rows];
for (int c = rows; --c != -1;) {
for (int r = cols; --r != -1;) {
result[c * cols + r] = values[r * rows + c];
}
}
return new DefaultDenseObjectMatrix2D(result, cols, rows);
}
public Object[] getObjectArray() {
return values;
}
}