/*******************************************************************************
* Copyright 2006 - 2012 Vienna University of Technology,
* Department of Software Technology and Interactive Systems, IFS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This work originates from the Planets project, co-funded by the European Union under the Sixth Framework Programme.
******************************************************************************/
package eu.scape_project.planning.model.sensitivity;
import eu.scape_project.planning.model.tree.TreeNode;
/**
* Implementations of this interface should modify the weights of the nodes during the sensitivity analysis.
*
* @author Jan Zarnikov
*
*/
public interface IWeightModifier {
/**
* Modify the weights of the given node. The weights of direct children are
* saved before this call and restored afterwards. This means that you don't
* have to worry about storing and restoring of the weight in your
* implementation.
*
* @param node
* The current node processed by the sensitivity analysis.
* @return True if the current node should be processed once more (e.g. you
* want to perform a different modification on the same node).
* Otherwise the analysis will proceed to the next node.
*/
public boolean performModification(TreeNode node);
}