ValueGeneratorCache.GetOrAdd 方法

參考

定義

命名空間:: Microsoft.EntityFrameworkCore.ValueGeneration

組件:: Microsoft.EntityFrameworkCore.dll

套件:: Microsoft.EntityFrameworkCore v1.0.6

套件:: Microsoft.EntityFrameworkCore v1.1.6

套件:: Microsoft.EntityFrameworkCore v2.0.3

套件:: Microsoft.EntityFrameworkCore v2.1.11

套件:: Microsoft.EntityFrameworkCore v2.2.6

套件:: Microsoft.EntityFrameworkCore v3.0.0

套件:: Microsoft.EntityFrameworkCore v3.1.0

套件:: Microsoft.EntityFrameworkCore v5.0.0

套件:: Microsoft.EntityFrameworkCore v6.0.0

套件:: Microsoft.EntityFrameworkCore v7.0.0

套件:: Microsoft.EntityFrameworkCore v8.0.0

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

多載

GetOrAdd(IProperty, IEntityType, Func<IProperty,IEntityType,ValueGenerator>)	從快取取得現有的值產生器，如果快取中沒有新的值產生器，則建立新的值產生器。
GetOrAdd(IProperty, ITypeBase, Func<IProperty,ITypeBase,ValueGenerator>)	從快取取得現有的值產生器，如果快取中沒有新的值產生器，則建立新的值產生器。

GetOrAdd(IProperty, IEntityType, Func<IProperty,IEntityType,ValueGenerator>)

從快取取得現有的值產生器，如果快取中沒有新的值產生器，則建立新的值產生器。

public virtual Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator GetOrAdd (Microsoft.EntityFrameworkCore.Metadata.IProperty property, Microsoft.EntityFrameworkCore.Metadata.IEntityType entityType, Func<Microsoft.EntityFrameworkCore.Metadata.IProperty,Microsoft.EntityFrameworkCore.Metadata.IEntityType,Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> factory);

abstract member GetOrAdd : Microsoft.EntityFrameworkCore.Metadata.IProperty * Microsoft.EntityFrameworkCore.Metadata.IEntityType * Func<Microsoft.EntityFrameworkCore.Metadata.IProperty, Microsoft.EntityFrameworkCore.Metadata.IEntityType, Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> -> Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator
override this.GetOrAdd : Microsoft.EntityFrameworkCore.Metadata.IProperty * Microsoft.EntityFrameworkCore.Metadata.IEntityType * Func<Microsoft.EntityFrameworkCore.Metadata.IProperty, Microsoft.EntityFrameworkCore.Metadata.IEntityType, Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> -> Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator

Public Overridable Function GetOrAdd (property As IProperty, entityType As IEntityType, factory As Func(Of IProperty, IEntityType, ValueGenerator)) As ValueGenerator

參數

property: IProperty

要為其取得值產生器的屬性。

entityType: IEntityType

值產生器將用於的實體類型。在衍生實體類型上的繼承屬性上呼叫時，此實體類型可能與上宣告的實體類型不同 property

factory: Func<IProperty,IEntityType,ValueGenerator>

如果快取中沒有新的值產生器，則為 Factory 建立新的值產生器。

傳回

ValueGenerator

現有或新建立的值產生器。

實作

GetOrAdd(IProperty, IEntityType, Func<IProperty,IEntityType,ValueGenerator>)

適用於

GetOrAdd(IProperty, ITypeBase, Func<IProperty,ITypeBase,ValueGenerator>)

從快取取得現有的值產生器，如果快取中沒有新的值產生器，則建立新的值產生器。

public virtual Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator GetOrAdd (Microsoft.EntityFrameworkCore.Metadata.IProperty property, Microsoft.EntityFrameworkCore.Metadata.ITypeBase typeBase, Func<Microsoft.EntityFrameworkCore.Metadata.IProperty,Microsoft.EntityFrameworkCore.Metadata.ITypeBase,Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> factory);

abstract member GetOrAdd : Microsoft.EntityFrameworkCore.Metadata.IProperty * Microsoft.EntityFrameworkCore.Metadata.ITypeBase * Func<Microsoft.EntityFrameworkCore.Metadata.IProperty, Microsoft.EntityFrameworkCore.Metadata.ITypeBase, Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> -> Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator
override this.GetOrAdd : Microsoft.EntityFrameworkCore.Metadata.IProperty * Microsoft.EntityFrameworkCore.Metadata.ITypeBase * Func<Microsoft.EntityFrameworkCore.Metadata.IProperty, Microsoft.EntityFrameworkCore.Metadata.ITypeBase, Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator> -> Microsoft.EntityFrameworkCore.ValueGeneration.ValueGenerator

Public Overridable Function GetOrAdd (property As IProperty, typeBase As ITypeBase, factory As Func(Of IProperty, ITypeBase, ValueGenerator)) As ValueGenerator

參數

property: IProperty

要為其取得值產生器的屬性。

typeBase: ITypeBase

值產生器將用於的實體類型。在衍生實體類型上的繼承屬性上呼叫時，此實體類型可能與上宣告的實體類型不同 property

factory: Func<IProperty,ITypeBase,ValueGenerator>

如果快取中沒有新的值產生器，則為 Factory 建立新的值產生器。

傳回

ValueGenerator

現有或新建立的值產生器。

實作

GetOrAdd(IProperty, ITypeBase, Func<IProperty,ITypeBase,ValueGenerator>)

適用於

共用方式為

ValueGeneratorCache.GetOrAdd 方法

定義

多載

GetOrAdd(IProperty, IEntityType, Func<IProperty,IEntityType,ValueGenerator>)

參數

傳回

實作

適用於

GetOrAdd(IProperty, ITypeBase, Func<IProperty,ITypeBase,ValueGenerator>)

參數

傳回

實作

適用於

其他資源