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Open-source constraint solver.

There is a newer version: 4.10.17

/*
 * This file is part of choco-solver, http://choco-solver.org/
 *
 * Copyright (c) 2022, IMT Atlantique. All rights reserved.
 *
 * Licensed under the BSD 4-clause license.
 *
 * See LICENSE file in the project root for full license information.
 */
package org.chocosolver.memory.trailing.trail;

import org.chocosolver.memory.IStorage;
import org.chocosolver.memory.structure.IOperation;

/**
 * 

 *
 * @author Charles Prud'homme
 * @since 29/04/13
 */
public interface IOperationTrail extends IStorage {

    void savePreviousState(IOperation operation);

    void savePreviousStateAt(IOperation operation, int at, int currentWorldIndex);
}