//                                               -*- C++ -*-
/**
 *  @file  OrthogonalFunctionFactory.hxx
 *  @brief This is an abstract class for orthogonal basis
 *
 *  Copyright (C) 2005-2013 EDF-EADS-Phimeca
 *
 *  This library 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  This library 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
 *  along with this library.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  @author dutka
 *  @date   2008-05-21 17:44:02 +0200 (Wed, 21 May 2008)
 */
#ifndef OPENTURNS_ORTHOGONALFUNCTIONFACTORY_HXX
#define OPENTURNS_ORTHOGONALFUNCTIONFACTORY_HXX

#include "PersistentObject.hxx"
#include "NumericalMathFunction.hxx"
#include "Distribution.hxx"
#include "EnumerateFunction.hxx"

BEGIN_NAMESPACE_OPENTURNS



/**
 * @class OrthogonalFunctionFactory
 *
 * This is an abstract class for orthogonal basis
 */

class OrthogonalFunctionFactory
  : public PersistentObject
{
  CLASSNAME;
public:


  /** Default constructor */
  OrthogonalFunctionFactory();

  /** Build the NumericalMathFunction of the given index */
  virtual NumericalMathFunction build(const UnsignedLong index) const;


  /** Return the measure upon which the basis is orthogonal */
  virtual Distribution getMeasure() const;

  /** Return the enumerate function that translate unidimensional indices nto multidimensional indices */
  virtual EnumerateFunction getEnumerateFunction() const;

  /** Virtual constructor */
  virtual OrthogonalFunctionFactory * clone() const;

  /** String converter */
  virtual String __repr__() const;

  /** Method save() stores the object through the StorageManager */
  virtual void save(Advocate & adv) const;

  /** Method load() reloads the object from the StorageManager */
  virtual void load(Advocate & adv);


protected:
  /** The measure that defines the scalar product */
  Distribution measure_;

  /** The enumerate function for product orthogonal functions */
  EnumerateFunction enumerateFunction_;

private:

} ; /* class OrthogonalFunctionFactory */


END_NAMESPACE_OPENTURNS

#endif /* OPENTURNS_ORTHOGONALFUNCTIONFACTORY_HXX */
