SimilarityDelegator.cs
上传用户:zhangkuixh
上传日期:2013-09-30
资源大小:5473k
文件大小:2k
- /*
- * Copyright 2005 The Apache Software Foundation
- *
- * 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;
- namespace Lucene.Net.Search
- {
-
- /// <summary>Expert: Delegating scoring implementation. Useful in {@link
- /// Query#GetSimilarity(Searcher)} implementations, to override only certain
- /// methods of a Searcher's Similiarty implementation..
- /// </summary>
- [Serializable]
- public class SimilarityDelegator : Similarity
- {
-
- private Similarity delegee;
-
- /// <summary>Construct a {@link Similarity} that delegates all methods to another.
- ///
- /// </summary>
- /// <param name="delegee">the Similarity implementation to delegate to
- /// </param>
- public SimilarityDelegator(Similarity delegee)
- {
- this.delegee = delegee;
- }
-
- public override float LengthNorm(System.String fieldName, int numTerms)
- {
- return delegee.LengthNorm(fieldName, numTerms);
- }
-
- public override float QueryNorm(float sumOfSquaredWeights)
- {
- return delegee.QueryNorm(sumOfSquaredWeights);
- }
-
- public override float Tf(float freq)
- {
- return delegee.Tf(freq);
- }
-
- public override float SloppyFreq(int distance)
- {
- return delegee.SloppyFreq(distance);
- }
-
- public override float Ldf(int docFreq, int numDocs)
- {
- return delegee.Ldf(docFreq, numDocs);
- }
-
- public override float Coord(int overlap, int maxOverlap)
- {
- return delegee.Coord(overlap, maxOverlap);
- }
- }
- }