IEntityMaterializerSource Interface
Definition
Important
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Defines a source for generating Expression trees that read values from a ValueBuffer or creates entity instances.
This type is typically used by database providers (and other extensions). It is generally not used in application code.
public interface IEntityMaterializerSourcetype IEntityMaterializerSource = interfacePublic Interface IEntityMaterializerSource- Derived
Remarks
The service lifetime is Singleton. This means a single instance is used by many DbContext instances. The implementation must be thread-safe. This service cannot depend on services registered as Scoped.
See Implementation of database providers and extensions and How EF Core queries work for more information and examples.
Methods
| CreateMaterializeExpression(EntityMaterializerSourceParameters, Expression) |
Creates an Expression tree representing creating an entity instance. This method is typically used by database providers (and other extensions). It is generally not used in application code. |
| CreateMaterializeExpression(IEntityType, String, Expression) |
Obsolete.
Creates an Expression tree representing creating an entity instance. This method is typically used by database providers (and other extensions). It is generally not used in application code. |
| CreateReadValueExpression(Expression, Type, Int32, IPropertyBase) |
Creates an Expression tree representing reading a value from a ValueBuffer This method is typically used by database providers (and other extensions). It is generally not used in application code. |
| GetEmptyMaterializer(IEntityType) |
Returns a cached delegate that creates empty instances of the given entity type. This method is typically used by database providers (and other extensions). It is generally not used in application code. |
| GetMaterializer(IEntityType) |
Returns a cached delegate that creates instances of the given entity type. This method is typically used by database providers (and other extensions). It is generally not used in application code. |
Applies to
Entity Framework