TestFunc.java

// Special Session on Real-Parameter Optimization at CEC-05
// Edinburgh, UK, 2-5 Sept. 2005
//
// Organizers:
//	Prof. Kalyanmoy Deb
//		deb@iitk.ac.in
//		http://www.iitk.ac.in/kangal/deb.htm
//	A/Prof. P. N. Suganthan
//		epnsugan@ntu.edu.sg
//		http://www.ntu.edu.sg/home/EPNSugan
//
// Java version of the org.uma.test functions
//
// Matlab reference code
//	http://www.ntu.edu.sg/home/EPNSugan
//
// Java version developer:
//	Assistant Prof. Ying-ping Chen
//		Department of Computer Science
//		National Chiao Tung University
//		HsinChu City, Taiwan
//		ypchen@csie.nctu.edu.tw
//		http://www.csie.nctu.edu.tw/~ypchen/
//
// Typical use of the org.uma.test functions in the Benchmark:
//
//		// Create a Benchmark object
// 		Benchmark theBenchmark = new Benchmark();
//		// Use the factory function call to create a org.uma.test function object
//		//		org.uma.test function 3 with 50 dimension
//		//		the object class is "TestFunc"
//		TestFunc aTestFunc = theBenchmark.testFunctionFactory(3, 50);
//		// Invoke the function with x
//		double experimentoutput = aTestFunc.f(x);
//
// Version 0.90
//		Currently, this version cannot handle any numbers of dimensions.
//		It cannot generate the shifted global optima and rotation matrices
//		that are not provided with the Matlab reference code.
//		It can handle all cases whose data files are provided with
//		the Matlab reference code.
// Version 0.91
//		Revised according to the Matlab reference code and the PDF document
//		dated March 8, 2005.
//

package org.uma.jmetal.problem.singleobjective.cec2005competitioncode;

import org.uma.jmetal.util.JMetalException;

public abstract class TestFunc {

  protected int mDimension;
  protected double mBias;

  protected String mFuncName;

  // Constructors
  public TestFunc(int dimension, double bias) {
    this(dimension, bias, "undefined");
  }

  public TestFunc(int dimension, double bias, String funcName) {
    mDimension = dimension;
    mBias = bias;
    mFuncName = funcName;
  }

  // Function body to be defined in the child classes
  public abstract double f(double[] x) throws JMetalException;

  // Property functions common for all child classes
  public int dimension() {
    return (mDimension);
  }

  public double bias() {
    return (mBias);
  }

  public String name() {
    return (mFuncName);
  }
}