#region License Information
/* HeuristicLab
 * Copyright (C) 2002-2012 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
 *
 * This file is part of HeuristicLab.
 *
 * HeuristicLab is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * HeuristicLab 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
 */
#endregion

using System.Collections.Generic;
using HeuristicLab.Encodings.PermutationEncoding;
using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
using HeuristicLab.PluginInfrastructure;

namespace HeuristicLab.Analysis.AlgorithmBehavior.Analyzers {
  [NonDiscoverableType]
  [StorableClass]
  public class PermutationWrapperEqualityComparer : EqualityComparer<PermutationWrapper> {
    PermutationEqualityComparer peComp = new PermutationEqualityComparer();

    public PermutationWrapperEqualityComparer() { }

    [StorableConstructor]
    protected PermutationWrapperEqualityComparer(bool deserializing) {
      if (deserializing) {
        peComp = new PermutationEqualityComparer();
      }
    }

    public override bool Equals(PermutationWrapper x, PermutationWrapper y) {
      return peComp.Equals(x.GetPermutation(), y.GetPermutation());
    }

    public override int GetHashCode(PermutationWrapper obj) {
      return peComp.GetHashCode(obj.GetPermutation());
    }
  }
}