ObjectFactory.cs :  » Rule-Engines » Drools.NET » org » drools » base_Renamed » evaluators » C# / CSharp Open Source

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C# / CSharp Open Source » Rule Engines » Drools.NET 
Drools.NET » org » drools » base_Renamed » evaluators » ObjectFactory.cs
/*
* Copyright 2005 JBoss Inc
* 
* 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.
*/
using System;
//UPGRADE_TODO: The type 'org.drools.base_Renamed.BaseEvaluator' could not be found. If it was not included in the conversion, there may be compiler issues. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1262'"
using BaseEvaluatororg.drools.base_Renamed.BaseEvaluator;
//UPGRADE_TODO: The type 'org.drools.spi.Evaluator' could not be found. If it was not included in the conversion, there may be compiler issues. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1262'"
using Evaluatororg.drools.spi.Evaluator;
namespace org.drools.base_Renamed.evaluators{
  
  /// <summary> This is the misc "bucket" evaluator factory for objects.
  /// It is fairly limited in operations, 
  /// and what operations are available are dependent on the exact type.
  /// 
  /// This supports "<" and ">" etc by requiring objects to implement the comparable interface.
  /// Of course, literals will not work with comparator, as it has no way
  /// of converting from literal to the appropriate type.
  /// 
  /// </summary>
  /// <author>  Michael Neale
  /// </author>
  public class ObjectFactory
  {
    
    public static Evaluator getObjectEvaluator(int operator_Renamed)
    {
      switch (operator_Renamed)
      {
        
        case Evaluator.EQUAL: 
          return ObjectEqualEvaluator.INSTANCE;
        
        case Evaluator.NOT_EQUAL: 
          return ObjectNotEqualEvaluator.INSTANCE;
        
        case Evaluator.CONTAINS: 
          return ObjectContainsEvaluator.INSTANCE;
        
        case Evaluator.LESS: 
          return ObjectLessEvaluator.INSTANCE;
        
        case Evaluator.LESS_OR_EQUAL: 
          return ObjectLessOrEqualEvaluator.INSTANCE;
        
        case Evaluator.GREATER: 
          return ObjectGreaterEvaluator.INSTANCE;
        
        case Evaluator.GREATER_OR_EQUAL: 
          return ObjectGreaterOrEqualEvaluator.INSTANCE;
        
        case Evaluator.EXCLUDES: 
          return ObjectExcludesEvaluator.INSTANCE;
        
        default: 
          throw new System.SystemException("Operator '" + operator_Renamed + "' does not exist for ObjectEvaluator");
        
      }
    }
    
    internal class ObjectEqualEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 4532849170161094887L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectEqualEvaluator();
      
      internal ObjectEqualEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.EQUAL)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        if (object1 == null)
        {
          return object2 == null;
        }
        return object1.Equals(object2);
      }
      
      public virtual System.String toString()
      {
        return "Object ==";
      }
    }
    
    internal class ObjectNotEqualEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = - 6995475512317781516L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectNotEqualEvaluator();
      
      internal ObjectNotEqualEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.NOT_EQUAL)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        if (object1 == null)
        {
          return !(object2 == null);
        }
        return !object1.Equals(object2);
      }
      
      public virtual System.String toString()
      {
        return "Object !=";
      }
    }
    
    internal class ObjectLessEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 5327278696364237380L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectLessEvaluator();
      
      internal ObjectLessEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.LESS)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        //UPGRADE_NOTE: Final was removed from the declaration of 'comp '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.IComparable comp = (System.IComparable) object1;
        //UPGRADE_NOTE: Final was removed from the declaration of 'val '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        int val = comp.CompareTo(object2);
        return val < 0;
      }
      
      public virtual System.String toString()
      {
        return "Object <";
      }
    }
    
    internal class ObjectLessOrEqualEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 3463248146201714137L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectLessOrEqualEvaluator();
      
      internal ObjectLessOrEqualEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.LESS_OR_EQUAL)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        //UPGRADE_NOTE: Final was removed from the declaration of 'comp '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.IComparable comp = (System.IComparable) object1;
        return comp.CompareTo(object2) <= 0;
      }
      
      public virtual System.String toString()
      {
        return "Object <=";
      }
    }
    
    internal class ObjectGreaterEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 7808425299326128881L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectGreaterEvaluator();
      
      internal ObjectGreaterEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.GREATER)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        //UPGRADE_NOTE: Final was removed from the declaration of 'comp '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.IComparable comp = (System.IComparable) object1;
        return comp.CompareTo(object2) > 0;
      }
      
      public virtual System.String toString()
      {
        return "Object >";
      }
    }
    
    internal class ObjectGreaterOrEqualEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = - 3337081388987517878L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectGreaterOrEqualEvaluator();
      
      internal ObjectGreaterOrEqualEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.GREATER_OR_EQUAL)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        //UPGRADE_NOTE: Final was removed from the declaration of 'comp '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.IComparable comp = (System.IComparable) object1;
        return comp.CompareTo(object2) >= 0;
      }
      
      public virtual System.String toString()
      {
        return "Object >=";
      }
    }
    
    internal class ObjectContainsEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 6607233589136455455L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectContainsEvaluator();
      
      internal ObjectContainsEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.CONTAINS)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        if (object2 == null)
        {
          return false;
        }
        //UPGRADE_NOTE: Final was removed from the declaration of 'col '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.Collections.ICollection col = (System.Collections.ICollection) object1;
        return SupportClass.ICollectionSupport.Contains(col, object2);
      }
      
      public virtual System.String toString()
      {
        return "Object contains";
      }
    }
    
    internal class ObjectExcludesEvaluator:BaseEvaluator
    {
      /// <summary> </summary>
      private const long serialVersionUID = 4353038775000051165L;
      //UPGRADE_NOTE: Final was removed from the declaration of 'INSTANCE '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
      public static readonly Evaluator INSTANCE = new ObjectExcludesEvaluator();
      
      internal ObjectExcludesEvaluator():base(Evaluator.OBJECT_TYPE, Evaluator.EXCLUDES)
      {
      }
      
      public virtual bool evaluate(System.Object object1, System.Object object2)
      {
        if (object2 == null)
        {
          return false;
        }
        //UPGRADE_NOTE: Final was removed from the declaration of 'col '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
        System.Collections.ICollection col = (System.Collections.ICollection) object1;
        return !SupportClass.ICollectionSupport.Contains(col, object2);
      }
      
      public virtual System.String toString()
      {
        return "Object excludes";
      }
    }
  }
}
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