InversionOfControl/Castle.MicroKernel/SubSystems/Conversion/ConvertibleAttribute.cs

   1 // Copyright 2004-2008 Castle Project - http://www.castleproject.org/
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.using System;
  14
  15 namespace Castle.MicroKernel.SubSystems.Conversion
  16 {
  17         using System;
  18
  19         /// <summary>
  20         /// Declares a type as being convertible by a <see cref="ITypeConverter"/> and optionally defines the converter to be used
  21         /// </summary>
  22         [System.AttributeUsage(AttributeTargets.Interface | AttributeTargets.Class | AttributeTargets.Struct, Inherited = false, AllowMultiple = false)]
  23         public class ConvertibleAttribute : Attribute
  24         {
  25                 private readonly Type converterType;
  26
  27                 /// <summary>
  28                 /// Defines the <see cref="DefaultComplexConverter "/> to be used to convert the type
  29                 /// </summary>
  30                 public ConvertibleAttribute() : this(typeof(DefaultComplexConverter))
  31                 {
  32                 }
  33
  34                 /// <summary>
  35                 /// Defines the <see cref="ITypeConverter"/> to be used to convert the type
  36                 /// </summary>
  37                 /// <param name="converterType"></param>
  38                 public ConvertibleAttribute(Type converterType)
  39                 {
  40                         if (!typeof(ITypeConverter).IsAssignableFrom(converterType))
  41                         {
  42                                 throw new ArgumentException("converterType must implement ITypeConverter interface", "converterType");
  43                         }
  44
  45                         this.converterType = converterType;
  46                 }
  47
  48                 public Type ConverterType
  49                 {
  50                         get { return converterType; }
  51                 }
  52         }
  53 }