StateLocator.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
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    the rights to use, copy, modify, merge, publish, distribute, sublicense,
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    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
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/**
 * @file StateLocator.hh
 *
 * Declaration of StateLocator class.
 *
 * @author Jussi Nykänen 2004 (nykanen-no.spam-cs.tut.fi)
 * @author Pekka Jääskeläinen 2005 (pjaaskel-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_STATE_LOCATOR_HH
#define TTA_STATE_LOCATOR_HH
 
#include <map>
 
#include "Exception.hh"
 
class StateData;
 
namespace TTAMachine {
    class MachinePart;
}
 
/**
 * Class that makes it possible to lookup state objects corresponding to
 * MOM component instances.
 */
class StateLocator {
public:
    StateLocator();
    virtual ~StateLocator();
 
    void addState(
        const TTAMachine::MachinePart& momComponent, 
        StateData& state);
    StateData& state(const TTAMachine::MachinePart& momComponent) const;
 
private:
    /// Copying not allowed.
    StateLocator(const StateLocator&);
    /// Assignment not allowed.
    StateLocator& operator=(const StateLocator&);
 
    /// State objects indexed by MOM components.
    typedef std::map<const TTAMachine::MachinePart*, StateData*> 
    StateContainer;
    
    /// Contains all the states indexed by MOM components.
    StateContainer states_;
};
 
#endif