package org.jacorb.notification.filter;

/*
 *        JacORB - a free Java ORB
 *
 *   Copyright (C) 1999-2014 Gerald Brose / The JacORB Team.
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Library General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 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
 *   Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this library; if not, write to the Free
 *   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */

import org.jacorb.notification.interfaces.Message;

/**
 * Representation of a Constraint.
 * A {@link org.jacorb.notification.filter.AbstractFilter Filter} encapsulates
 * several Constraints. Each Constraint is represented by an instance
 * of this Class.
 *
 * @author Alphonse Bendt
 */

public interface FilterConstraint
{   
    EvaluationResult evaluate( EvaluationContext evaluationContext,
                                      Message event )
        throws EvaluationException;
}