Policy.java

package uk.ac.manchester.cs.jfact.kernel.actors;

/* This file is part of the JFact DL reasoner
 Copyright 2011-2013 by Ignazio Palmisano, Dmitry Tsarkov, University of Manchester
 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA*/
import uk.ac.manchester.cs.jfact.kernel.ClassifiableEntry;
import uk.ac.manchester.cs.jfact.kernel.ExpressionManager;
import uk.ac.manchester.cs.jfact.kernel.dl.interfaces.Expression;

/** policy */
public interface Policy {

    /**
     * @param p
     *        p
     * @return true if applicable
     */
    boolean applicable(ClassifiableEntry p);

    /** @return true if plain is needed */
    boolean needPlain();

    /**
     * @param EM
     *        EM
     * @param p
     *        p
     * @return expression for p
     */
    Expression buildTree(ExpressionManager EM, ClassifiableEntry p);
}