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Infrastructure and core functionalities of LearnLib
/* Copyright (C) 2013-2014 TU Dortmund
* This file is part of LearnLib, http://www.learnlib.de/.
*
* LearnLib is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 3.0 as published by the Free Software Foundation.
*
* LearnLib 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
* License along with LearnLib; if not, see
* .
*/
package de.learnlib.api;
import javax.annotation.Nullable;
/**
* Interface for a system under learning (SUL) that can make single steps.
*
* @param input symbols
* @param output symbols
*
* @author falkhowar
*/
public interface SUL {
/**
* setup SUL.
*/
void pre();
/**
* shut down SUL.
*/
void post();
/**
* make one step on the SUL.
*
* @param in input to the SUL
* @return output of SUL
*/
@Nullable
O step(@Nullable I in) throws SULException;
}