Lucene.Net  3.0.3
Lucene.Net is a .NET port of the Java Lucene Indexing Library
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MinPayloadFunction.cs
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1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 using System;
19 
20 namespace Lucene.Net.Search.Payloads
21 {
22 
27  [Serializable]
29  {
30 
31  public override float CurrentScore(int docId, System.String field, int start, int end, int numPayloadsSeen, float currentScore, float currentPayloadScore)
32  {
33  if (numPayloadsSeen == 0)
34  {
35  return currentPayloadScore;
36  }
37  else
38  {
39  return System.Math.Min(currentPayloadScore, currentScore);
40  }
41  }
42 
43  public override float DocScore(int docId, System.String field, int numPayloadsSeen, float payloadScore)
44  {
45  return numPayloadsSeen > 0?payloadScore:1;
46  }
47 
48  public override int GetHashCode()
49  {
50  int prime = 31;
51  int result = 1;
52  result = prime * result + this.GetType().GetHashCode();
53  return result;
54  }
55 
56  public override bool Equals(System.Object obj)
57  {
58  if (this == obj)
59  return true;
60  if (obj == null)
61  return false;
62  if (GetType() != obj.GetType())
63  return false;
64  return true;
65  }
66  }
67 }