beagled/Lucene.Net/Search/SimilarityDelegator.cs

   1 /*
   2  * Copyright 2005 The Apache Software Foundation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 using System;
  17 namespace Lucene.Net.Search
  18 {
  19
  20     [Serializable]
  21     public class SimilarityDelegator : Similarity
  22     {
  23
  24         private Similarity delegee;
  25
  26         /// <summary>Construct a {@link Similarity} that delegates all methods to another.
  27         ///
  28         /// </summary>
  29         /// <param name="delegee">the Similarity implementation to delegate to
  30         /// </param>
  31         public SimilarityDelegator(Similarity delegee)
  32         {
  33             this.delegee = delegee;
  34         }
  35
  36         public override float LengthNorm(System.String fieldName, int numTerms)
  37         {
  38             return delegee.LengthNorm(fieldName, numTerms);
  39         }
  40
  41         public override float QueryNorm(float sumOfSquaredWeights)
  42         {
  43             return delegee.QueryNorm(sumOfSquaredWeights);
  44         }
  45
  46         public override float Tf(float freq)
  47         {
  48             return delegee.Tf(freq);
  49         }
  50
  51         public override float SloppyFreq(int distance)
  52         {
  53             return delegee.SloppyFreq(distance);
  54         }
  55
  56         public override float Idf(int docFreq, int numDocs)
  57         {
  58             return delegee.Idf(docFreq, numDocs);
  59         }
  60
  61         public override float Coord(int overlap, int maxOverlap)
  62         {
  63             return delegee.Coord(overlap, maxOverlap);
  64         }
  65     }
  66 }