mcs/class/referencesource/System.Data.Entity/System/Data/Metadata/ObjectLayer/KnownAssemblyEntry.cs

   1 //---------------------------------------------------------------------
   2 // <copyright file="KnownAssemblyEntry.cs" company="Microsoft">
   3 //      Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 //
   6 // @owner       Microsoft
   7 // @backupOwner Microsoft
   8 //---------------------------------------------------------------------
   9
  10 using System.Collections.Generic;
  11 using System.Reflection;
  12 using System.Diagnostics;
  13
  14 namespace System.Data.Metadata.Edm
  15 {
  16     internal sealed class KnownAssemblyEntry
  17     {
  18         private readonly AssemblyCacheEntry _cacheEntry;
  19         private bool _referencedAssembliesAreLoaded;
  20         private bool _seenWithEdmItemCollection;
  21
  22         internal KnownAssemblyEntry(AssemblyCacheEntry cacheEntry, bool seenWithEdmItemCollection)
  23         {
  24             Debug.Assert(cacheEntry != null, "Found a null cacheEntry");
  25             _cacheEntry = cacheEntry;
  26             _referencedAssembliesAreLoaded = false;
  27             _seenWithEdmItemCollection = seenWithEdmItemCollection;
  28         }
  29
  30         internal AssemblyCacheEntry CacheEntry
  31         {
  32             get { return _cacheEntry; }
  33         }
  34
  35         public bool ReferencedAssembliesAreLoaded
  36         {
  37             get { return _referencedAssembliesAreLoaded; }
  38             set { _referencedAssembliesAreLoaded = value; }
  39         }
  40
  41         public bool SeenWithEdmItemCollection
  42         {
  43             get { return _seenWithEdmItemCollection; }
  44             set { _seenWithEdmItemCollection = value; }
  45         }
  46
  47         public bool HaveSeenInCompatibleContext(object loaderCookie, EdmItemCollection itemCollection)
  48         {
  49             // a new "context" is only when we have not seen this assembly with an itemCollection that is non-null
  50             // and we now have a non-null itemCollection, and we are not already in AttributeLoader mode.
  51             return SeenWithEdmItemCollection ||
  52                    itemCollection == null ||
  53                    ObjectItemAssemblyLoader.IsAttributeLoader(loaderCookie);
  54         }
  55     }
  56 }