scalarFunctionInterface.hpp

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/*
 * Copyright (c) 2014 Patrick P. Frey
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
#ifndef _STRUS_SCALAR_FUNCTION_INTERFACE_HPP_INCLUDED
#define _STRUS_SCALAR_FUNCTION_INTERFACE_HPP_INCLUDED
#include <string>
#include <vector>

namespace strus
{
class ScalarFunctionInstanceInterface;

class ScalarFunctionInterface
{
public:
        virtual ~ScalarFunctionInterface(){}

        virtual std::vector<std::string> getVariables() const=0;

        virtual unsigned int getNofArguments() const=0;

        virtual void setDefaultVariableValue( const std::string& name, double value)=0;

        virtual ScalarFunctionInstanceInterface* createInstance() const=0;

        virtual std::string tostring() const=0;
};

}// namespace
#endif