MonoRail/Castle.MonoRail.Framework.Views.NVelocity/Helpers/StaticAccessorHelper.cs

   1 // Copyright 2004-2007 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.
  14
  15 namespace Castle.MonoRail.Framework.Views.NVelocity
  16 {
  17         using System.Reflection;
  18
  19         /// <summary>
  20         /// Provides a helper to access static operations on types to NVelocity.
  21         /// </summary>
  22         /// <typeparam name="T">the type to access</typeparam>
  23         public class StaticAccessorHelper<T> : global::NVelocity.IDuck
  24         {
  25                 #region IDuck Members
  26
  27                 /// <summary>
  28                 /// Invoke a get operation on the value type
  29                 /// </summary>
  30                 /// <param name="propName">the property or field to get</param>
  31                 /// <returns>the value</returns>
  32                 public object GetInvoke(string propName)
  33                 {
  34                         return
  35                                 typeof (T).InvokeMember(propName,
  36                                                                                 BindingFlags.Public | BindingFlags.Static | BindingFlags.GetField |
  37                                                                                 BindingFlags.GetProperty,
  38                                                                                 null, null, new object[] {});
  39                 }
  40
  41                 /// <summary>
  42                 /// Invoke a method on the value type
  43                 /// </summary>
  44                 /// <param name="method">the method name</param>
  45                 /// <param name="args">the argumenents.</param>
  46                 /// <returns>the result of the method invocation.</returns>
  47                 public object Invoke(string method, params object[] args)
  48                 {
  49                         return
  50                                 typeof (T).InvokeMember(method, BindingFlags.Public | BindingFlags.Static | BindingFlags.InvokeMethod,
  51                                                                                 null, null, args);
  52                 }
  53
  54                 /// <summary>
  55                 /// Invoke a set operation on the value type
  56                 /// </summary>
  57                 /// <param name="propName">the property or field to set</param>
  58                 /// <param name="value">the value to set the property or field to.</param>
  59                 public void SetInvoke(string propName, object value)
  60                 {
  61                         typeof (T).InvokeMember(propName,
  62                                                                         BindingFlags.Public | BindingFlags.Static | BindingFlags.SetField |
  63                                                                         BindingFlags.SetProperty,
  64                                                                         null, null, new object[] {value});
  65                 }
  66
  67                 #endregion
  68         }
  69 }