Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntityDesign / Design / System / Data / EntityModel / Emitters / TypeReference.cs / 1 / TypeReference.cs
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System;
using System.CodeDom;
using System.Collections;
using System.Collections.Generic;
using System.Data.EntityModel.SchemaObjectModel;
using System.Data.Common.Utils;
using System.Reflection;
namespace System.Data.EntityModel.Emitters
{
///
/// Summary description for TypeReferences.
///
internal class TypeReference
{
#region Fields
internal static readonly Type ComplexTypeBaseClassType = typeof(System.Data.Objects.DataClasses.ComplexObject);
internal static readonly Type EntityTypeBaseClassType = typeof(System.Data.Objects.DataClasses.EntityObject);
private const string IEntityWithRelationshipsTypeBaseClassName = "IEntityWithRelationships";
private const string NewContextClassName = "ObjectContext";
private const string EntitySetClassName = "EntitySet";
private const string ObjectResultClassName = "ObjectResult";
public const string FQMetaDataWorkspaceTypeName = "System.Data.Metadata.Edm.MetadataWorkspace";
private static CodeTypeReference _byteArray;
private static CodeTypeReference _dateTime;
private static CodeTypeReference _guid;
private static CodeTypeReference _objectContext;
private static CodeTypeReference _string;
private readonly Memoizer _forTypeMemoizer;
private readonly Memoizer _nullableForTypeMemoizer;
private readonly Memoizer, CodeTypeReference> _fromStringMemoizer;
private readonly Memoizer, CodeTypeReference> _fromStringGenericMemoizer;
#endregion
#region Constructors
internal TypeReference()
{
_forTypeMemoizer = new Memoizer(ComputeForType, null);
_fromStringMemoizer = new Memoizer, CodeTypeReference>(ComputeFromString, null);
_nullableForTypeMemoizer = new Memoizer(ComputeNullableForType, null);
_fromStringGenericMemoizer = new Memoizer, CodeTypeReference>(ComputeFromStringGeneric, null);
}
#endregion
#region Public Methods
///
/// Get TypeReference for a type represented by a Type object
///
/// the type object
/// the associated TypeReference object
public CodeTypeReference ForType(Type type)
{
return _forTypeMemoizer.Evaluate(type);
}
private CodeTypeReference ComputeForType(Type type)
{
// we know that we can safely global:: qualify this because it was already
// compiled before we are emitting or else we wouldn't have a Type object
CodeTypeReference value = new CodeTypeReference(type, CodeTypeReferenceOptions.GlobalReference);
return value;
}
///
/// Get TypeReference for a type represented by a Generic Type object.
/// We don't cache the TypeReference for generic type object since the type would be the same
/// irresepective of the generic arguments. We could potentially cache it using both the type name
/// and generic type arguments.
///
/// the generic type object
/// the associated TypeReference object
public CodeTypeReference ForType(Type generic, CodeTypeReference argument)
{
// we know that we can safely global:: qualify this because it was already
// compiled before we are emitting or else we wouldn't have a Type object
CodeTypeReference typeRef = new CodeTypeReference(generic, CodeTypeReferenceOptions.GlobalReference);
typeRef.TypeArguments.Add(argument);
return typeRef;
}
///
/// Get TypeReference for a type represented by a namespace quailifed string
///
/// namespace qualified string
/// the TypeReference
public CodeTypeReference FromString(string type)
{
return FromString(type, false);
}
///
/// Get TypeReference for a type represented by a namespace quailifed string,
/// with optional global qualifier
///
/// namespace qualified string
/// indicates whether the global qualifier should be added
/// the TypeReference
public CodeTypeReference FromString(string type, bool addGlobalQualifier)
{
return _fromStringMemoizer.Evaluate(new KeyValuePair(type, addGlobalQualifier));
}
private CodeTypeReference ComputeFromString(KeyValuePair arguments)
{
string type = arguments.Key;
bool addGlobalQualifier = arguments.Value;
CodeTypeReference value;
if (addGlobalQualifier)
{
value = new CodeTypeReference(type, CodeTypeReferenceOptions.GlobalReference);
}
else
{
value = new CodeTypeReference(type);
}
return value;
}
///
/// Get TypeReference for a framework type
///
/// unqualified name of the framework type
/// the TypeReference
public CodeTypeReference AdoFrameworkType(string name)
{
return FromString(Utils.FQAdoFrameworkName(name), true);
}
///
/// Get TypeReference for a framework DataClasses type
///
/// unqualified name of the framework DataClass type
/// the TypeReference
public CodeTypeReference AdoFrameworkDataClassesType(string name)
{
return FromString(Utils.FQAdoFrameworkDataClassesName(name), true);
}
///
/// Get TypeReference for a framework Metadata Edm type
///
/// unqualified name of the framework metadata edm type
/// the TypeReference
public CodeTypeReference AdoFrameworkMetadataEdmType(string name)
{
return FromString(Utils.FQAdoFrameworkMetadataEdmName(name), true);
}
///
/// Get TypeReference for a framework Entity Client type
///
/// unqualified name of the framework type
/// the TypeReference
public CodeTypeReference AdoEntityClientType(string name)
{
return FromString(Utils.FQAdoEntityClientName(name), true);
}
///
/// Get TypeReference for a bound generic framework class
///
/// the name of the generic framework class
/// the type parameter for the framework class
/// TypeReference for the bound framework class
public CodeTypeReference AdoFrameworkGenericClass(string name, CodeTypeReference typeParameter)
{
return FrameworkGenericClass(Utils.AdoFrameworkNamespace, name, typeParameter);
}
///
/// Get TypeReference for a bound generic framework data class
///
/// the name of the generic framework data class
/// the type parameter for the framework data class
/// TypeReference for the bound framework data class
public CodeTypeReference AdoFrameworkGenericDataClass(string name, CodeTypeReference typeParameter)
{
return FrameworkGenericClass(Utils.AdoFrameworkDataClassesNamespace, name, typeParameter);
}
///
/// Get TypeReference for a bound generic framework class
///
/// the namespace of the generic framework class
/// the name of the generic framework class
/// the type parameter for the framework class
/// TypeReference for the bound framework class
private CodeTypeReference FrameworkGenericClass(string namespaceName, string name, CodeTypeReference typeParameter)
{
return _fromStringGenericMemoizer.Evaluate(new KeyValuePair(namespaceName + "." + name, typeParameter));
}
private CodeTypeReference ComputeFromStringGeneric(KeyValuePair arguments)
{
string name = arguments.Key;
CodeTypeReference typeParameter = arguments.Value;
CodeTypeReference typeRef = ComputeFromString(new KeyValuePair(name, true));
typeRef.TypeArguments.Add(typeParameter);
return typeRef;
}
///
/// Get TypeReference for a bound Nullable<T>
///
/// Type of the Nullable<T> type parameter
/// TypeReference for a bound Nullable<T>
public CodeTypeReference NullableForType(Type innerType)
{
return _nullableForTypeMemoizer.Evaluate(innerType);
}
private CodeTypeReference ComputeNullableForType(Type innerType)
{
// can't use FromString because it will return the same Generic type reference
// but it will already have a previous type parameter (because of caching)
CodeTypeReference typeRef = new CodeTypeReference(typeof(System.Nullable<>), CodeTypeReferenceOptions.GlobalReference);
typeRef.TypeArguments.Add(ForType(innerType));
return typeRef;
}
///
/// Gets an ObjectResult of elementType CodeTypeReference.
///
public CodeTypeReference ObjectResult(CodeTypeReference elementType)
{
return AdoFrameworkGenericClass(ObjectResultClassName, elementType);
}
#endregion
#region Public Properties
///
/// Gets a CodeTypeReference to the System.Byte[] type.
///
///
public CodeTypeReference ByteArray
{
get
{
if (_byteArray == null)
_byteArray = ForType(typeof(byte[]));
return _byteArray;
}
}
///
/// Gets a CodeTypeReference object for the System.DateTime type.
///
public CodeTypeReference DateTime
{
get
{
if (_dateTime == null)
_dateTime = ForType(typeof(System.DateTime));
return _dateTime;
}
}
///
/// Gets a CodeTypeReference object for the System.Guid type.
///
public CodeTypeReference Guid
{
get
{
if (_guid == null)
_guid = ForType(typeof(System.Guid));
return _guid;
}
}
///
/// TypeReference for the Framework's ObjectContext class
///
public CodeTypeReference ObjectContext
{
get
{
if (_objectContext == null)
_objectContext = AdoFrameworkType(NewContextClassName);
return _objectContext;
}
}
///
/// TypeReference for the Framework base class to types that can used in InlineObjectCollection
///
public CodeTypeReference ComplexTypeBaseClass
{
get
{
return ForType(ComplexTypeBaseClassType);
}
}
///
/// TypeReference for the Framework base class for EntityTypes
///
public CodeTypeReference EntityTypeBaseClass
{
get
{
return ForType(EntityTypeBaseClassType);
}
}
///
/// TypeReference for the Framework base class for IEntityWithRelationships
///
public CodeTypeReference IEntityWithRelationshipsTypeBaseClass
{
get
{
return AdoFrameworkDataClassesType(IEntityWithRelationshipsTypeBaseClassName);
}
}
///
/// Gets a CodeTypeReference object for the System.String type.
///
public CodeTypeReference String
{
get
{
if (_string == null)
_string = ForType(typeof(string));
return _string;
}
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//----------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//
// @owner [....]
// @backupOwner [....]
//---------------------------------------------------------------------
using System;
using System.CodeDom;
using System.Collections;
using System.Collections.Generic;
using System.Data.EntityModel.SchemaObjectModel;
using System.Data.Common.Utils;
using System.Reflection;
namespace System.Data.EntityModel.Emitters
{
///
/// Summary description for TypeReferences.
///
internal class TypeReference
{
#region Fields
internal static readonly Type ComplexTypeBaseClassType = typeof(System.Data.Objects.DataClasses.ComplexObject);
internal static readonly Type EntityTypeBaseClassType = typeof(System.Data.Objects.DataClasses.EntityObject);
private const string IEntityWithRelationshipsTypeBaseClassName = "IEntityWithRelationships";
private const string NewContextClassName = "ObjectContext";
private const string EntitySetClassName = "EntitySet";
private const string ObjectResultClassName = "ObjectResult";
public const string FQMetaDataWorkspaceTypeName = "System.Data.Metadata.Edm.MetadataWorkspace";
private static CodeTypeReference _byteArray;
private static CodeTypeReference _dateTime;
private static CodeTypeReference _guid;
private static CodeTypeReference _objectContext;
private static CodeTypeReference _string;
private readonly Memoizer _forTypeMemoizer;
private readonly Memoizer _nullableForTypeMemoizer;
private readonly Memoizer, CodeTypeReference> _fromStringMemoizer;
private readonly Memoizer, CodeTypeReference> _fromStringGenericMemoizer;
#endregion
#region Constructors
internal TypeReference()
{
_forTypeMemoizer = new Memoizer(ComputeForType, null);
_fromStringMemoizer = new Memoizer, CodeTypeReference>(ComputeFromString, null);
_nullableForTypeMemoizer = new Memoizer(ComputeNullableForType, null);
_fromStringGenericMemoizer = new Memoizer, CodeTypeReference>(ComputeFromStringGeneric, null);
}
#endregion
#region Public Methods
///
/// Get TypeReference for a type represented by a Type object
///
/// the type object
/// the associated TypeReference object
public CodeTypeReference ForType(Type type)
{
return _forTypeMemoizer.Evaluate(type);
}
private CodeTypeReference ComputeForType(Type type)
{
// we know that we can safely global:: qualify this because it was already
// compiled before we are emitting or else we wouldn't have a Type object
CodeTypeReference value = new CodeTypeReference(type, CodeTypeReferenceOptions.GlobalReference);
return value;
}
///
/// Get TypeReference for a type represented by a Generic Type object.
/// We don't cache the TypeReference for generic type object since the type would be the same
/// irresepective of the generic arguments. We could potentially cache it using both the type name
/// and generic type arguments.
///
/// the generic type object
/// the associated TypeReference object
public CodeTypeReference ForType(Type generic, CodeTypeReference argument)
{
// we know that we can safely global:: qualify this because it was already
// compiled before we are emitting or else we wouldn't have a Type object
CodeTypeReference typeRef = new CodeTypeReference(generic, CodeTypeReferenceOptions.GlobalReference);
typeRef.TypeArguments.Add(argument);
return typeRef;
}
///
/// Get TypeReference for a type represented by a namespace quailifed string
///
/// namespace qualified string
/// the TypeReference
public CodeTypeReference FromString(string type)
{
return FromString(type, false);
}
///
/// Get TypeReference for a type represented by a namespace quailifed string,
/// with optional global qualifier
///
/// namespace qualified string
/// indicates whether the global qualifier should be added
/// the TypeReference
public CodeTypeReference FromString(string type, bool addGlobalQualifier)
{
return _fromStringMemoizer.Evaluate(new KeyValuePair(type, addGlobalQualifier));
}
private CodeTypeReference ComputeFromString(KeyValuePair arguments)
{
string type = arguments.Key;
bool addGlobalQualifier = arguments.Value;
CodeTypeReference value;
if (addGlobalQualifier)
{
value = new CodeTypeReference(type, CodeTypeReferenceOptions.GlobalReference);
}
else
{
value = new CodeTypeReference(type);
}
return value;
}
///
/// Get TypeReference for a framework type
///
/// unqualified name of the framework type
/// the TypeReference
public CodeTypeReference AdoFrameworkType(string name)
{
return FromString(Utils.FQAdoFrameworkName(name), true);
}
///
/// Get TypeReference for a framework DataClasses type
///
/// unqualified name of the framework DataClass type
/// the TypeReference
public CodeTypeReference AdoFrameworkDataClassesType(string name)
{
return FromString(Utils.FQAdoFrameworkDataClassesName(name), true);
}
///
/// Get TypeReference for a framework Metadata Edm type
///
/// unqualified name of the framework metadata edm type
/// the TypeReference
public CodeTypeReference AdoFrameworkMetadataEdmType(string name)
{
return FromString(Utils.FQAdoFrameworkMetadataEdmName(name), true);
}
///
/// Get TypeReference for a framework Entity Client type
///
/// unqualified name of the framework type
/// the TypeReference
public CodeTypeReference AdoEntityClientType(string name)
{
return FromString(Utils.FQAdoEntityClientName(name), true);
}
///
/// Get TypeReference for a bound generic framework class
///
/// the name of the generic framework class
/// the type parameter for the framework class
/// TypeReference for the bound framework class
public CodeTypeReference AdoFrameworkGenericClass(string name, CodeTypeReference typeParameter)
{
return FrameworkGenericClass(Utils.AdoFrameworkNamespace, name, typeParameter);
}
///
/// Get TypeReference for a bound generic framework data class
///
/// the name of the generic framework data class
/// the type parameter for the framework data class
/// TypeReference for the bound framework data class
public CodeTypeReference AdoFrameworkGenericDataClass(string name, CodeTypeReference typeParameter)
{
return FrameworkGenericClass(Utils.AdoFrameworkDataClassesNamespace, name, typeParameter);
}
///
/// Get TypeReference for a bound generic framework class
///
/// the namespace of the generic framework class
/// the name of the generic framework class
/// the type parameter for the framework class
/// TypeReference for the bound framework class
private CodeTypeReference FrameworkGenericClass(string namespaceName, string name, CodeTypeReference typeParameter)
{
return _fromStringGenericMemoizer.Evaluate(new KeyValuePair(namespaceName + "." + name, typeParameter));
}
private CodeTypeReference ComputeFromStringGeneric(KeyValuePair arguments)
{
string name = arguments.Key;
CodeTypeReference typeParameter = arguments.Value;
CodeTypeReference typeRef = ComputeFromString(new KeyValuePair(name, true));
typeRef.TypeArguments.Add(typeParameter);
return typeRef;
}
///
/// Get TypeReference for a bound Nullable<T>
///
/// Type of the Nullable<T> type parameter
/// TypeReference for a bound Nullable<T>
public CodeTypeReference NullableForType(Type innerType)
{
return _nullableForTypeMemoizer.Evaluate(innerType);
}
private CodeTypeReference ComputeNullableForType(Type innerType)
{
// can't use FromString because it will return the same Generic type reference
// but it will already have a previous type parameter (because of caching)
CodeTypeReference typeRef = new CodeTypeReference(typeof(System.Nullable<>), CodeTypeReferenceOptions.GlobalReference);
typeRef.TypeArguments.Add(ForType(innerType));
return typeRef;
}
///
/// Gets an ObjectResult of elementType CodeTypeReference.
///
public CodeTypeReference ObjectResult(CodeTypeReference elementType)
{
return AdoFrameworkGenericClass(ObjectResultClassName, elementType);
}
#endregion
#region Public Properties
///
/// Gets a CodeTypeReference to the System.Byte[] type.
///
///
public CodeTypeReference ByteArray
{
get
{
if (_byteArray == null)
_byteArray = ForType(typeof(byte[]));
return _byteArray;
}
}
///
/// Gets a CodeTypeReference object for the System.DateTime type.
///
public CodeTypeReference DateTime
{
get
{
if (_dateTime == null)
_dateTime = ForType(typeof(System.DateTime));
return _dateTime;
}
}
///
/// Gets a CodeTypeReference object for the System.Guid type.
///
public CodeTypeReference Guid
{
get
{
if (_guid == null)
_guid = ForType(typeof(System.Guid));
return _guid;
}
}
///
/// TypeReference for the Framework's ObjectContext class
///
public CodeTypeReference ObjectContext
{
get
{
if (_objectContext == null)
_objectContext = AdoFrameworkType(NewContextClassName);
return _objectContext;
}
}
///
/// TypeReference for the Framework base class to types that can used in InlineObjectCollection
///
public CodeTypeReference ComplexTypeBaseClass
{
get
{
return ForType(ComplexTypeBaseClassType);
}
}
///
/// TypeReference for the Framework base class for EntityTypes
///
public CodeTypeReference EntityTypeBaseClass
{
get
{
return ForType(EntityTypeBaseClassType);
}
}
///
/// TypeReference for the Framework base class for IEntityWithRelationships
///
public CodeTypeReference IEntityWithRelationshipsTypeBaseClass
{
get
{
return AdoFrameworkDataClassesType(IEntityWithRelationshipsTypeBaseClassName);
}
}
///
/// Gets a CodeTypeReference object for the System.String type.
///
public CodeTypeReference String
{
get
{
if (_string == null)
_string = ForType(typeof(string));
return _string;
}
}
#endregion
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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