Lucene.Net  3.0.3
Lucene.Net is a .NET port of the Java Lucene Indexing Library
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TextFragment.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
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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,
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14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 using System;
19 using System.Text;
20 
21 namespace Lucene.Net.Search.Highlight
22 {
26  public class TextFragment
27  {
28  private StringBuilder markedUpText;
29 
30 
31  public TextFragment(StringBuilder markedUpText, int textStartPos, int fragNum)
32  {
33  this.markedUpText = markedUpText;
34  this.TextStartPos = textStartPos;
35  this.FragNum = fragNum;
36  }
37 
38  public float Score { get; protected internal set; }
39  public int TextEndPos { get; protected internal set; }
40  public int TextStartPos { get; protected internal set; }
41 
45  public int FragNum { get; protected internal set; }
46 
47 
50  public void Merge(TextFragment frag2)
51  {
52  TextEndPos = frag2.TextEndPos;
53  Score = Math.Max(Score, frag2.Score);
54  }
55 
59  public bool Follows(TextFragment fragment)
60  {
61  return TextStartPos == fragment.TextEndPos;
62  }
63 
67  public override String ToString()
68  {
69  return markedUpText.ToString(TextStartPos, TextEndPos - TextStartPos);
70  }
71 
72  }
73 }