/**
* Copyright (C) 2001-2017 by RapidMiner and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapidminer.com
*
* This program is free software: you can redistribute it and/or modify it under the terms of the
* GNU Affero General Public License as published by the Free Software Foundation, either version 3
* 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
* Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along with this program.
* If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.io.process.rules;
import com.rapidminer.gui.tools.VersionNumber;
import com.rapidminer.io.process.XMLImporter;
import com.rapidminer.operator.Operator;
/**
* Rule that defines how operators are imported from earlier RapidMiner versions.
*
* @author Simon Fischer
*
*/
public interface ParseRule {
/**
* Applies the rule and possibly returns a message describing what has been modified. This takes
* only place if the rule applies as well to the operator as to the version of the process we
* are importing or the given processVersion is null. Null is returned if the rule did not
* apply.
*
* @param importer
*/
public String apply(Operator operator, VersionNumber processVersion, XMLImporter importer);
}