| 1 | /*
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| 2 | * RandomNumberDistribution.hpp
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| 3 | *
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| 4 | * Created on: Jan 01, 2011
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| 5 | * Author: heber
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| 6 | */
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| 7 |
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| 8 | #ifndef RANDOMNUMBERDISTRIBUTION_HPP_
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| 9 | #define RANDOMNUMBERDISTRIBUTION_HPP_
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| 10 |
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| 11 | // include config.h
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| 12 | #ifdef HAVE_CONFIG_H
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| 13 | #include <config.h>
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| 14 | #endif
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| 15 |
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| 16 | class RandomNumberDistributionFactoryTest;
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| 17 | class RandomNumberGenerator;
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| 18 | class RandomNumberDistribution_Parameters;
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| 19 |
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| 20 | /** Abstract base class for a random number distribution.
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| 21 | *
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| 22 | * This class represents the interface to the random number distribution.
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| 23 | * Hence, they all can be accessed the same way.
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| 24 | *
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| 25 | * It is also the base class that is needed for RandomNumberGeneratorFactory.
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| 26 | */
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| 27 | class RandomNumberDistribution
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| 28 | {
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| 29 | /**
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| 30 | * test has to access cstor/dstor.
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| 31 | */
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| 32 | friend class RandomNumberDistributionFactoryTest;
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| 33 |
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| 34 | /**
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| 35 | * RandomNumberGenerator(_Encapsulation) needs access to dstor.
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| 36 | */
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| 37 | friend class RandomNumberGenerator;
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| 38 |
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| 39 | public:
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| 40 | /** Getter for the whole set of possible parameters.
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| 41 | *
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| 42 | * @return filled instance of RandomNumberDistribution_Parameters
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| 43 | */
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| 44 | virtual RandomNumberDistribution_Parameters* getParameterSet() const=0;
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| 45 |
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| 46 | /** Getter for smallest value the uniform_... engines produces.
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| 47 | *
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| 48 | * @return smallest value
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| 49 | */
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| 50 | virtual double min() const=0;
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| 51 |
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| 52 | /** Getter for largest value the uniform_... engines produces.
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| 53 | *
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| 54 | * @return largest value
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| 55 | */
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| 56 | virtual double max() const=0;
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| 57 |
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| 58 |
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| 59 | /** Getter for bernoulli_distribution probability p.
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| 60 | *
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| 61 | * @return p
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| 62 | */
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| 63 | virtual double p() const=0;
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| 64 |
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| 65 | /** Getter for binomial_distribution's parameter t.
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| 66 | *
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| 67 | * @return t
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| 68 | */
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| 69 | virtual double t() const=0;
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| 70 |
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| 71 | /** Getter for cauchy_distribution parameter median.
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| 72 | *
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| 73 | * @return median
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| 74 | */
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| 75 | virtual double median() const=0;
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| 76 |
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| 77 | /** Getter for cauchy_distribution parameter sigma.
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| 78 | *
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| 79 | * @return sigma
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| 80 | */
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| 81 | virtual double sigma() const=0;
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| 82 |
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| 83 | /** Getter for gamma_distribution parameter alpha.
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| 84 | *
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| 85 | * @return alpha
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| 86 | */
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| 87 | virtual double alpha() const=0;
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| 88 |
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| 89 | /** Getter for poisson_distribution's parameter mean.
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| 90 | *
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| 91 | * @return mean
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| 92 | */
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| 93 | virtual double mean() const=0;
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| 94 |
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| 95 | /** Getter for triangle_distribution parameter a.
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| 96 | *
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| 97 | * @return a
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| 98 | */
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| 99 | virtual double a() const=0;
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| 100 |
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| 101 | /** Getter for triangle_distribution parameter b.
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| 102 | *
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| 103 | * @return b
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| 104 | */
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| 105 | virtual double b() const=0;
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| 106 |
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| 107 | /** Getter for triangle_distribution parameter c.
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| 108 | *
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| 109 | * @return c
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| 110 | */
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| 111 | virtual double c() const=0;
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| 112 |
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| 113 | /** Getter for exponential_distribution parameter lambda.
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| 114 | *
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| 115 | * @return lambda
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| 116 | */
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| 117 | virtual double lambda() const=0;
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| 118 |
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| 119 | /** Getter for the type name of the internal distribution.
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| 120 | *
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| 121 | * @return name of distribution
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| 122 | */
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| 123 | virtual std::string name()=0;
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| 124 |
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| 125 | /** Destructor of class RandomNumberDistribution.
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| 126 | *
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| 127 | * @note must be public such that instances from factory can be destroyed.
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| 128 | *
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| 129 | */
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| 130 | virtual ~RandomNumberDistribution() {};
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| 131 | protected:
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| 132 |
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| 133 | /** Constructor of class RandomNumberDistribution.
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| 134 | *
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| 135 | * @note is protected such that instances can only be created by the factory.
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| 136 | */
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| 137 | RandomNumberDistribution() {};
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| 138 | };
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| 139 |
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| 140 | #endif /* RANDOMNUMBERDISTRIBUTION_HPP_ */
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