//
// C++ Interface: AttributeDependentMatch
//
// Description:
//
//
// Author: Erik Hjortsberg <erik.hjortsberg@gmail.com>, (C) 2007
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.//
//
#ifndef EMBEROGRE_MODEL_MAPPING_MATCHESATTRIBUTEDEPENDENTMATCH_H
#define EMBEROGRE_MODEL_MAPPING_MATCHESATTRIBUTEDEPENDENTMATCH_H

#include <Atlas/Message/Element.h>
#include "Observers/AttributeObserver.h"

namespace Ember {



namespace EntityMapping {

namespace Matches {


/**
	Base class for all Matches that are dependent on an attribute.
	@author Erik Hjortsberg <erik.hjortsberg@gmail.com>
*/
class AttributeDependentMatch
{
public:
	AttributeDependentMatch();
	virtual ~AttributeDependentMatch();

	/**
	Test changes to the attribute.
	*/
	virtual void testAttribute(const Atlas::Message::Element& attribute, bool triggerEvaluation = false) = 0;

    /**
    Use the supplied observer to observe changes to the attribute. The supplied observer will be managed by this class.
    */
    void setAttributeObserver(Observers::AttributeObserver* observer);

protected:

	std::unique_ptr<Observers::AttributeObserver> mAttributeObserver;
};
}

}

}

#endif
