RuntimeDbFunction 构造函数

定义

命名空间:

Microsoft.EntityFrameworkCore.Metadata

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v8.0.0

初始化 RuntimeDbFunction 类的新实例。

public RuntimeDbFunction (string modelName, Microsoft.EntityFrameworkCore.Metadata.RuntimeModel model, Type returnType, string storeName, string? schema = default, string? storeType = default, System.Reflection.MethodInfo? methodInfo = default, bool scalar = false, bool aggregate = false, bool nullable = false, bool builtIn = false, Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping? typeMapping = default, Func<System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>,Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>? translation = default);

new Microsoft.EntityFrameworkCore.Metadata.RuntimeDbFunction : string * Microsoft.EntityFrameworkCore.Metadata.RuntimeModel * Type * string * string * string * System.Reflection.MethodInfo * bool * bool * bool * bool * Microsoft.EntityFrameworkCore.Storage.RelationalTypeMapping * Func<System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression>, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression> -> Microsoft.EntityFrameworkCore.Metadata.RuntimeDbFunction

Public Sub New (modelName As String, model As RuntimeModel, returnType As Type, storeName As String, Optional schema As String = Nothing, Optional storeType As String = Nothing, Optional methodInfo As MethodInfo = Nothing, Optional scalar As Boolean = false, Optional aggregate As Boolean = false, Optional nullable As Boolean = false, Optional builtIn As Boolean = false, Optional typeMapping As RelationalTypeMapping = Nothing, Optional translation As Func(Of IReadOnlyList(Of SqlExpression), SqlExpression) = Nothing)

参数

modelName

String

模型名称。

model

RuntimeModel

模型。

returnType

Type

返回类型。

storeName

String

存储名称。

schema

String

存储架构。

storeType

String

存储类型。

methodInfo

MethodInfo

映射的 MethodInfo。

scalar

Boolean

返回类型是否为标量。

aggregate

Boolean

函数是否为聚合。

nullable

Boolean

函数是否可为 null。

builtIn

Boolean

函数是否内置。

typeMapping

RelationalTypeMapping

返回值的类型映射。

translation

Func<IReadOnlyList<SqlExpression>,SqlExpression>

函数转换。