C# Класс EFUtility.CodeGenerationTools.MetadataTools

Responsible for making the Entity Framework Metadata more accessible for code generation.

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Открытые методы

Метод	Описание
ClrType ( TypeUsage typeUsage ) : Type	This method returns the underlying CLR type of the o-space type corresponding to the supplied typeUsage Note that for an enum type this means that the type backing the enum will be returned, not the enum type itself.
GetCorrespondingDependentProperty ( System.Data.Metadata.Edm.NavigationProperty navProperty, System.Data.Metadata.Edm.EdmProperty principalProperty ) : System.Data.Metadata.Edm.EdmProperty	Given a property on the principal end of a referential constraint, returns the corresponding property on the dependent end. Requires: The association has a referential constraint, and the specified principalProperty is one of the properties on the principal end.
GetCorrespondingPrincipalProperty ( System.Data.Metadata.Edm.NavigationProperty navProperty, System.Data.Metadata.Edm.EdmProperty dependentProperty ) : System.Data.Metadata.Edm.EdmProperty	Given a property on the dependent end of a referential constraint, returns the corresponding property on the principal end. Requires: The association has a referential constraint, and the specified dependentProperty is one of the properties on the dependent end.
GetDependentProperties ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : ReadOnlyMetadataCollection	Gets the collection of properties that are on the dependent end of a referential constraint for the specified navigation property. Requires: The association has a referential constraint.
GetElementType ( TypeUsage typeUsage ) : TypeUsage	If the passed in TypeUsage represents a collection this method returns final element type of the collection, otherwise it returns the value passed in.
GetPrincipalProperties ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : ReadOnlyMetadataCollection	Gets the collection of properties that are on the principal end of a referential constraint for the specified navigation property. Requires: The association has a referential constraint.
GetSubtypesOf ( EntityType type, ItemCollection itemCollection, bool includeAbstractTypes ) : IEnumerable	Returns the subtype of the EntityType in the current itemCollection
Inverse ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : System.Data.Metadata.Edm.NavigationProperty	Returns the NavigationProperty that is the other end of the same association set if it is available, otherwise it returns null.
IsCascadeDeletePrincipal ( System.Data.Metadata.Edm.AssociationEndMember associationEnd ) : bool	True if the specified association end is the principal in an identifying relationship. or if the association end has cascade delete defined.
IsCascadeDeletePrincipal ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : bool	True if the source end of the specified navigation property is the principal in an identifying relationship. or if the source end has cascade delete defined.
IsIdentifyingRelationship ( System.Data.Metadata.Edm.AssociationType association ) : bool	True if the specified association type is an identifying relationship. In order to be an identifying relationship, the association must have a referential constraint where all of the dependent properties are part of the dependent type's primary key.
IsKey ( System.Data.Metadata.Edm.EdmProperty property ) : bool	True if the EdmProperty is a key of its DeclaringType, False otherwise.
IsNullable ( System.Data.Metadata.Edm.EdmProperty property ) : bool	True if the EdmProperty TypeUsage is Nullable, False otherwise.
IsNullable ( TypeUsage typeUsage ) : bool	True if the TypeUsage is Nullable, False otherwise.
IsPrincipalEndOfIdentifyingRelationship ( System.Data.Metadata.Edm.AssociationEndMember associationEnd ) : bool	True if the specified association end is the principal end in an identifying relationship. In order to be an identifying relationship, the association must have a referential constraint where all of the dependent properties are part of the dependent type's primary key.
IsSubtypeOf ( System.Data.Metadata.Edm.EdmType firstType, System.Data.Metadata.Edm.EdmType secondType ) : bool	requires: firstType is not null effects: if secondType is among the base types of the firstType, return true, otherwise returns false. when firstType is same as the secondType, return false.
MetadataTools ( object textTransformation ) : System	Initializes an MetadataTools Instance with the TextTransformation (T4 generated class) that is currently running
NeedsHandleCascadeDeleteMethod ( ItemCollection itemCollection, EntityType entity ) : bool	True if this entity type requires the HandleCascadeDelete method defined and the method has not been defined on any base type
TryGetStringMetadataPropertySetting ( System.Data.Metadata.Edm.MetadataItem item, string propertyName, string &value ) : bool
UnderlyingClrType ( System.Data.Metadata.Edm.EdmType edmType ) : Type	This method returns the underlying CLR type given the c-space type. Note that for an enum type this means that the type backing the enum will be returned, not the enum type itself.

Приватные методы

Метод	Описание
ContainsCascadeDeleteAssociation ( ItemCollection itemCollection, EntityType entity ) : bool	True if this entity type participates in any relationships where the other end has an OnDelete cascade delete defined, or if it is the dependent in any identifying relationships

Описание методов

ClrType() публичный Метод

This method returns the underlying CLR type of the o-space type corresponding to the supplied typeUsage Note that for an enum type this means that the type backing the enum will be returned, not the enum type itself.

public ClrType ( TypeUsage typeUsage ) : Type
typeUsage	TypeUsage
Результат	System.Type

GetCorrespondingDependentProperty() публичный Метод

Given a property on the principal end of a referential constraint, returns the corresponding property on the dependent end. Requires: The association has a referential constraint, and the specified principalProperty is one of the properties on the principal end.

public GetCorrespondingDependentProperty ( System.Data.Metadata.Edm.NavigationProperty navProperty, System.Data.Metadata.Edm.EdmProperty principalProperty ) : System.Data.Metadata.Edm.EdmProperty
navProperty	System.Data.Metadata.Edm.NavigationProperty
principalProperty	System.Data.Metadata.Edm.EdmProperty
Результат	System.Data.Metadata.Edm.EdmProperty

GetCorrespondingPrincipalProperty() публичный Метод

Given a property on the dependent end of a referential constraint, returns the corresponding property on the principal end. Requires: The association has a referential constraint, and the specified dependentProperty is one of the properties on the dependent end.

public GetCorrespondingPrincipalProperty ( System.Data.Metadata.Edm.NavigationProperty navProperty, System.Data.Metadata.Edm.EdmProperty dependentProperty ) : System.Data.Metadata.Edm.EdmProperty
navProperty	System.Data.Metadata.Edm.NavigationProperty
dependentProperty	System.Data.Metadata.Edm.EdmProperty
Результат	System.Data.Metadata.Edm.EdmProperty

GetDependentProperties() публичный Метод

Gets the collection of properties that are on the dependent end of a referential constraint for the specified navigation property. Requires: The association has a referential constraint.

public GetDependentProperties ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : ReadOnlyMetadataCollection
navProperty	System.Data.Metadata.Edm.NavigationProperty
Результат	ReadOnlyMetadataCollection

GetElementType() публичный Метод

If the passed in TypeUsage represents a collection this method returns final element type of the collection, otherwise it returns the value passed in.

public GetElementType ( TypeUsage typeUsage ) : TypeUsage
typeUsage	TypeUsage
Результат	TypeUsage

GetPrincipalProperties() публичный Метод

Gets the collection of properties that are on the principal end of a referential constraint for the specified navigation property. Requires: The association has a referential constraint.

public GetPrincipalProperties ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : ReadOnlyMetadataCollection
navProperty	System.Data.Metadata.Edm.NavigationProperty
Результат	ReadOnlyMetadataCollection

GetSubtypesOf() публичный Метод

Returns the subtype of the EntityType in the current itemCollection

public GetSubtypesOf ( EntityType type, ItemCollection itemCollection, bool includeAbstractTypes ) : IEnumerable
type	System.Data.Metadata.Edm.EntityType
itemCollection	ItemCollection
includeAbstractTypes	bool
Результат	IEnumerable

Inverse() публичный Метод

Returns the NavigationProperty that is the other end of the same association set if it is available, otherwise it returns null.

public Inverse ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : System.Data.Metadata.Edm.NavigationProperty
navProperty	System.Data.Metadata.Edm.NavigationProperty
Результат	System.Data.Metadata.Edm.NavigationProperty

IsCascadeDeletePrincipal() публичный Метод

True if the specified association end is the principal in an identifying relationship. or if the association end has cascade delete defined.

public IsCascadeDeletePrincipal ( System.Data.Metadata.Edm.AssociationEndMember associationEnd ) : bool
associationEnd	System.Data.Metadata.Edm.AssociationEndMember
Результат	bool

IsCascadeDeletePrincipal() публичный Метод

True if the source end of the specified navigation property is the principal in an identifying relationship. or if the source end has cascade delete defined.

public IsCascadeDeletePrincipal ( System.Data.Metadata.Edm.NavigationProperty navProperty ) : bool
navProperty	System.Data.Metadata.Edm.NavigationProperty
Результат	bool

IsIdentifyingRelationship() публичный Метод

True if the specified association type is an identifying relationship. In order to be an identifying relationship, the association must have a referential constraint where all of the dependent properties are part of the dependent type's primary key.

public IsIdentifyingRelationship ( System.Data.Metadata.Edm.AssociationType association ) : bool
association	System.Data.Metadata.Edm.AssociationType
Результат	bool

IsKey() публичный Метод

True if the EdmProperty is a key of its DeclaringType, False otherwise.

public IsKey ( System.Data.Metadata.Edm.EdmProperty property ) : bool
property	System.Data.Metadata.Edm.EdmProperty
Результат	bool

IsNullable() публичный Метод

True if the EdmProperty TypeUsage is Nullable, False otherwise.

public IsNullable ( System.Data.Metadata.Edm.EdmProperty property ) : bool
property	System.Data.Metadata.Edm.EdmProperty
Результат	bool

IsNullable() публичный Метод

True if the TypeUsage is Nullable, False otherwise.

public IsNullable ( TypeUsage typeUsage ) : bool
typeUsage	TypeUsage
Результат	bool

IsPrincipalEndOfIdentifyingRelationship() публичный Метод

True if the specified association end is the principal end in an identifying relationship. In order to be an identifying relationship, the association must have a referential constraint where all of the dependent properties are part of the dependent type's primary key.

public IsPrincipalEndOfIdentifyingRelationship ( System.Data.Metadata.Edm.AssociationEndMember associationEnd ) : bool
associationEnd	System.Data.Metadata.Edm.AssociationEndMember
Результат	bool

IsSubtypeOf() публичный Метод

requires: firstType is not null effects: if secondType is among the base types of the firstType, return true, otherwise returns false. when firstType is same as the secondType, return false.

public IsSubtypeOf ( System.Data.Metadata.Edm.EdmType firstType, System.Data.Metadata.Edm.EdmType secondType ) : bool
firstType	System.Data.Metadata.Edm.EdmType
secondType	System.Data.Metadata.Edm.EdmType
Результат	bool

MetadataTools() публичный Метод

Initializes an MetadataTools Instance with the TextTransformation (T4 generated class) that is currently running

public MetadataTools ( object textTransformation ) : System
textTransformation	object
Результат	System

NeedsHandleCascadeDeleteMethod() публичный Метод

True if this entity type requires the HandleCascadeDelete method defined and the method has not been defined on any base type

public NeedsHandleCascadeDeleteMethod ( ItemCollection itemCollection, EntityType entity ) : bool
itemCollection	ItemCollection
entity	System.Data.Metadata.Edm.EntityType
Результат	bool

TryGetStringMetadataPropertySetting() публичный статический Метод

public static TryGetStringMetadataPropertySetting ( System.Data.Metadata.Edm.MetadataItem item, string propertyName, string &value ) : bool
item	System.Data.Metadata.Edm.MetadataItem
propertyName	string
value	string
Результат	bool

UnderlyingClrType() публичный Метод

This method returns the underlying CLR type given the c-space type. Note that for an enum type this means that the type backing the enum will be returned, not the enum type itself.

public UnderlyingClrType ( System.Data.Metadata.Edm.EdmType edmType ) : Type
edmType	System.Data.Metadata.Edm.EdmType
Результат	System.Type