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Open-source constraint solver.
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/**
 * Copyright (c) 2016, Ecole des Mines de Nantes
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the .
 * 4. Neither the name of the  nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY  ''AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL  BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.chocosolver.solver.propagation;

import org.chocosolver.solver.Model;
import org.chocosolver.solver.propagation.hardcoded.SevenQueuesPropagatorEngine;
import org.chocosolver.solver.propagation.hardcoded.TwoBucketPropagationEngine;

/**
 * A factory to build a propagation engine.
 * There are two types of engines:
 * 
- hard coded ones ({@code VARIABLEDRIVEN}, {@code PROPAGATORDRIVEN}, ...),
 * 
- DSL based one ({@code DSLDRIVEN})
 * 

 * The second type enable to declare a specific behavior: a propagation strategy
 *
 * @author Charles Prud'homme
 * @since 05/07/12
 */
public enum PropagationEngineFactory {

    /**
     * Create a seven queue dynamic propagator-oriented propagation engine
     */
    PROPAGATORDRIVEN_7QD() {
        @Override
        public IPropagationEngine make(Model model) {
            return new SevenQueuesPropagatorEngine(model);
        }
    },

    /**
     * Create a propagation engine which handles both priority and separated coarse propagation.
     */
    TWOBUCKETPROPAGATIONENGINE() {
        @Override
        public IPropagationEngine make(Model model) {
            return new TwoBucketPropagationEngine(model);
        }
    },

    DEFAULT() {
        @Override
        public IPropagationEngine make(Model model) {
            return PROPAGATORDRIVEN_7QD.make(model);
        }
    };

    public abstract IPropagationEngine make(Model model);
}