org.integratedmodelling.api.knowledge.ICondition Maven / Gradle / Ivy
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/*******************************************************************************
* Copyright (C) 2007, 2014:
*
* - 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.knowledge;
/**
* @author ferdinando.villa
* A special expression that must have a boolean value and can be negated.
*/
public interface ICondition extends IExpression {
/**
* Fairly stupid, but solves lots of problems. If this is called with a true
* argument, it should carry a negated flag that will be checked when it's used
* as a condition.
*
* @param negate
*/
public abstract void setNegated(boolean negate);
/**
*
* @return true if used in a negation context
*/
public abstract boolean isNegated();
}