Class ValueGeneratorSelector

Namespace

Microsoft.EntityFrameworkCore.ValueGeneration

Assembly

Microsoft.EntityFrameworkCore.dll

Selects value generators to be used to generate values for properties of entities.

This type is typically used by database providers (and other extensions). It is generally not used in application code.

public class ValueGeneratorSelector : IValueGeneratorSelector

Inheritance

object

ValueGeneratorSelector

Implements

IValueGeneratorSelector

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

The service lifetime is Scoped. This means that each DbContext instance will use its own instance of this service. The implementation may depend on other services registered with any lifetime. The implementation does not need to be thread-safe.

See Implementation of database providers and extensions for more information and examples.

Constructors

ValueGeneratorSelector(ValueGeneratorSelectorDependencies)

Initializes a new instance of the ValueGeneratorSelector class.

public ValueGeneratorSelector(ValueGeneratorSelectorDependencies dependencies)

Parameters

dependencies ValueGeneratorSelectorDependencies

Parameter object containing dependencies for this service.

Properties

Cache

The cache being used to store value generator instances.

public virtual IValueGeneratorCache Cache { get; }

Property Value

IValueGeneratorCache

Dependencies

Dependencies for this service.

protected virtual ValueGeneratorSelectorDependencies Dependencies { get; }

Property Value

ValueGeneratorSelectorDependencies

Methods

Create(IProperty, ITypeBase)

Creates a new value generator for the given property.

public virtual ValueGenerator Create(IProperty property, ITypeBase typeBase)

Parameters

property IProperty

The property to get the value generator for.

typeBase ITypeBase

The entity type that the value generator will be used for. When called on inherited properties on derived entity types, this entity type may be different from the declared entity type on property

Returns

ValueGenerator

The newly created value generator.

FindForType(IProperty, ITypeBase, Type)

Creates a new value generator for the given property and type, where the property may have a ValueConverter.

protected virtual ValueGenerator? FindForType(IProperty property, ITypeBase typeBase, Type clrType)

Parameters

property IProperty

The property to get the value generator for.

typeBase ITypeBase

The entity type that the value generator will be used for. When called on inherited properties on derived entity types, this entity type may be different from the declared entity type on property

clrType Type

The type, which may be the provider type after conversion, rather than the property type.

Returns

ValueGenerator

The newly created value generator.

Select(IProperty, ITypeBase)

Selects the appropriate value generator for a given property.

public virtual ValueGenerator Select(IProperty property, ITypeBase typeBase)

Parameters

property IProperty

The property to get the value generator for.

typeBase ITypeBase

The entity type that the value generator will be used for. When called on inherited properties on derived entity types, this entity type may be different from the declared entity type on property

Returns

ValueGenerator

The value generator to be used.