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.
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MemoryModel.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,
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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 
20 namespace Lucene.Net.Util
21 {
22 
23  /// <summary> Returns primitive memory sizes for estimating RAM usage.
24  ///
25  /// </summary>
26  public abstract class MemoryModel
27  {
28  /// <value> size of array beyond contents </value>
29  public abstract int ArraySize { get; }
30 
31  /// <value> Class size overhead </value>
32  public abstract int ClassSize { get; }
33 
34  /// <param name="clazz">a primitive Class - bool, byte, char, short, long, float,
35  /// short, double, int
36  /// </param>
37  /// <returns> the size in bytes of given primitive Class
38  /// </returns>
39  public abstract int GetPrimitiveSize(System.Type clazz);
40 
41  /// <value> size of reference </value>
42  public abstract int ReferenceSize { get; }
43  }
44 }