1 | #region License Information
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2 | /* HeuristicLab
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3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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4 | *
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5 | * This file is part of HeuristicLab.
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6 | *
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7 | * HeuristicLab is free software: you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation, either version 3 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * HeuristicLab is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 | * GNU General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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19 | */
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20 | #endregion
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21 |
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22 | using System;
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23 | using System.Collections.Generic;
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24 | using System.Text;
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25 | using System.Xml;
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26 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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27 | using HeuristicLab.Core;
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28 |
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29 | namespace HeuristicLab.Operators {
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30 | /// <summary>
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31 | /// A base class for operators which have only one successor.
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32 | /// </summary>
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33 | [Item("Standard Operator", "A base class for operators which have only one successor.")]
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34 | [Creatable("Test")]
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35 | [EmptyStorableClass]
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36 | public abstract class StandardOperator : Operator {
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37 | public OperatorParameter Successor {
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38 | get { return (OperatorParameter)Parameters["Successor"]; }
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39 | }
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40 |
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41 | public StandardOperator()
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42 | : base() {
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43 | Parameters.Add(new OperatorParameter("Successor", "Operator which is executed next"));
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44 | }
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45 |
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46 | public override ExecutionContextCollection Apply(ExecutionContext context) {
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47 | IOperator successor = Successor.GetValue(context);
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48 | if (successor != null)
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49 | return new ExecutionContextCollection(new ExecutionContext(context.Parent, successor, context.Scope));
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50 | else
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51 | return new ExecutionContextCollection();
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52 | }
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53 | }
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54 | }
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