mcs/class/System.ComponentModel.Composition/src/ComponentModel/System/ComponentModel/Composition/ReflectionModel/PartCreatorMemberImportDefinition.cs

   1 // -----------------------------------------------------------------------\r
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.\r
   3 // -----------------------------------------------------------------------\r
   4 using System;\r
   5 using System.Collections.Generic;\r
   6 using System.ComponentModel.Composition.Hosting;\r
   7 using System.ComponentModel.Composition.Primitives;\r
   8 using System.Linq.Expressions;\r
   9 using Microsoft.Internal;\r
  10 \r
  11 namespace System.ComponentModel.Composition.ReflectionModel\r
  12 {\r
  13     internal class PartCreatorMemberImportDefinition : ReflectionMemberImportDefinition, IPartCreatorImportDefinition\r
  14     {\r
  15         private readonly ContractBasedImportDefinition _productImportDefinition;\r
  16 \r
  17         public PartCreatorMemberImportDefinition(\r
  18             LazyMemberInfo importingLazyMember,\r
  19             ICompositionElement origin,\r
  20             ContractBasedImportDefinition productImportDefinition)\r
  21             : base(importingLazyMember, CompositionConstants.PartCreatorContractName, CompositionConstants.PartCreatorTypeIdentity,\r
  22                 productImportDefinition.RequiredMetadata, productImportDefinition.Cardinality, productImportDefinition.IsRecomposable, CreationPolicy.Any, origin)\r
  23         {\r
  24             Assumes.NotNull(productImportDefinition);\r
  25             this._productImportDefinition = productImportDefinition;\r
  26         }\r
  27 \r
  28         public ContractBasedImportDefinition ProductImportDefinition { get { return this._productImportDefinition; } }\r
  29 \r
  30         public override bool IsConstraintSatisfiedBy(ExportDefinition exportDefinition)\r
  31         {\r
  32             if (!base.IsConstraintSatisfiedBy(exportDefinition))\r
  33             {\r
  34                 return false;\r
  35             }\r
  36 \r
  37             return PartCreatorExportDefinition.IsProductConstraintSatisfiedBy(this._productImportDefinition, exportDefinition);\r
  38         }\r
  39 \r
  40         public override Expression<Func<ExportDefinition, bool>> Constraint\r
  41         {\r
  42             get\r
  43             {\r
  44                 return ConstraintServices.CreatePartCreatorConstraint(base.Constraint, this._productImportDefinition);\r
  45             }\r
  46         }\r
  47     }\r
  48 }\r