Lucene.Net  3.0.3
Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users.
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Properties Pages
ShapeFieldCache.cs
Go to the documentation of this file.
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.Collections.Generic;
19 using Spatial4n.Core.Shapes;
20 
21 namespace Lucene.Net.Spatial.Util
22 {
23  /// <summary>
24  /// Bounded Cache of Shapes associated with docIds. Note, multiple Shapes can be
25  /// associated with a given docId
26  /// </summary>
27  /// <typeparam name="T"></typeparam>
28  public class ShapeFieldCache<T> where T : Shape
29  {
30  private readonly IList<T>[] cache;
31  public int defaultLength;
32 
33  public ShapeFieldCache(int length, int defaultLength)
34  {
35  cache = new IList<T>[length];
36  this.defaultLength = defaultLength;
37  }
38 
39  public void Add(int docid, T s)
40  {
41  IList<T> list = cache[docid];
42  if (list == null)
43  {
44  list = cache[docid] = new List<T>(defaultLength);
45  }
46  list.Add(s);
47  }
48 
49  public IList<T> GetShapes(int docid)
50  {
51  return cache[docid];
52  }
53 
54  }
55 }