InversionOfControl/Castle.MicroKernel/ComponentActivator/DecomissioningResponsibility.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.
  14
  15 namespace Castle.MicroKernel.ComponentActivator
  16 {
  17         using System;
  18         using System.Collections;
  19
  20         public class DecomissioningResponsibility
  21         {
  22                 private IList references = new ArrayList();
  23
  24                 public void AddResponsiblity(object instance, IHandler handler)
  25                 {
  26                         if (instance == null) throw new ArgumentNullException("instance");
  27                         if (handler == null) throw new ArgumentNullException("handler");
  28
  29                         references.Add(new DecomissioningResponsibilityReference(instance, handler));
  30                 }
  31
  32                 public bool HasResponsibilities
  33                 {
  34                         get { return references.Count != 0; }
  35                 }
  36
  37                 public void ReleaseResponsibilities()
  38                 {
  39                         foreach(DecomissioningResponsibilityReference data in references)
  40                         {
  41                                 data.Handler.Release(data.Instance);
  42                         }
  43
  44                         references.Clear();
  45                 }
  46         }
  47
  48         internal struct DecomissioningResponsibilityReference
  49         {
  50                 private object instance;
  51                 private IHandler handler;
  52
  53                 public DecomissioningResponsibilityReference(object instance, IHandler handler)
  54                 {
  55                         this.instance = instance;
  56                         this.handler = handler;
  57                 }
  58
  59                 public object Instance
  60                 {
  61                         get { return instance; }
  62                 }
  63
  64                 public IHandler Handler
  65                 {
  66                         get { return handler; }
  67                 }
  68         }
  69 }