/*
 * Copyright (c) 2005, Regents of the University of California
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.  
 *
 * * Neither the name of the University of California, Berkeley nor
 *   the names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior 
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package blog;

import java.util.*;
import Jama.*;

public class MatrixType extends Type {

    public MatrixType(String name, int rows, int columns, Type supertype) {
	super(name, supertype, true);
	if(rows <= 0)
	    throw new IllegalArgumentException("Number of rows in a matrix " +
					       "must be positive; passed " +
					       "value: " + rows);
	if(columns <= 0)
	    throw new IllegalArgumentException("Number of columns in " +
					       "a matrix " +
					       "must be positive; passed " +
					       "value: " + columns);
	this.rows = rows;
	this.columns = columns;
    }

    public int getNumRows() {
	return rows;
    }

    public int getNumCols() {
	return columns;
    }

    

    public NonRandomFunction getConstructor() {
	if (constructor == null) {
	    List argTypes = Collections.nCopies(rows * columns, 
						BuiltInTypes.REAL);
	    constructor = new NonRandomFunction("Construct" + getName(), 
						argTypes, this, 
						new ConstructorInterp());
	}
	return constructor;
    }

    private class ConstructorInterp extends AbstractFunctionInterp {
	public Object getValue(List args) {
	    double[][] entries = new double[rows][columns];
	    int argIndex = 0;
	    for (int i = 0; i < rows; ++i) {
		for (int j = 0; j < columns; ++j) {
		    entries[i][j] 
			= ((Number) args.get(argIndex++)).doubleValue();
		}
	    }
	    return new Matrix(entries, rows, columns);
	}
    }

    private int rows;
    private int columns;

    private NonRandomFunction constructor;
} 

This file was generated on Tue Jun 08 17:53:36 PDT 2010 from file MatrixType.java
by the ilog.language.tools.Hilite Java tool written by Hassan Aït-Kaci