org.integratedmodelling.api.modelling.IClassifier Maven / Gradle / Ivy
The newest version!
/*******************************************************************************
* Copyright (C) 2007, 2015:
*
* - Ferdinando Villa
* - integratedmodelling.org
* - any other authors listed in @author annotations
*
* All rights reserved. This file is part of the k.LAB software suite,
* meant to enable modular, collaborative, integrated
* development of interoperable data and model components. For
* details, see http://integratedmodelling.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the Affero General Public License
* Version 3 or 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
* Affero General Public License for more details.
*
* You should have received a copy of the Affero General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* The license is also available at: https://www.gnu.org/licenses/agpl.html
*******************************************************************************/
package org.integratedmodelling.api.modelling;
/**
* An object that can be matched to another.
*
* @author Ferd
*
*/
public interface IClassifier {
/**
* True if passed object matches the conditions of the classifier.
*
* @param o
* @return True if passed object matches the conditions of the classifier
*/
public boolean classify(Object o);
/**
* True if this classifier matches everything.
*
* @return True if this classifier matches everything
*/
boolean isUniversal();
/**
* True if this classifier only matches null (unknown).
*
* @return True if this classifier only matches null
*/
boolean isNil();
/**
* True if this is an interval classifier.
*
* @return True if this is an interval classifier
*/
boolean isInterval();
/**
* Classifiers may be used as a value; this one should return the most appropriate
* value translation of the classifier, i.e. the matched object if it's matching a
* single one, or possibly a random object among the choices if it's in OR.
* @return the value this classifier resolves to.
*/
public Object asValue();
}