JsonScalarExpression Class

Reference

Definition

Namespace:: Microsoft.EntityFrameworkCore.Query.SqlExpressions

Assembly:: Microsoft.EntityFrameworkCore.Relational.dll

Package:: Microsoft.EntityFrameworkCore.Relational v7.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v8.0.0

Package:: Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:: JsonScalarExpression.cs

Source:: JsonScalarExpression.cs

Source:: JsonScalarExpression.cs

Important

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An expression representing a scalar extracted from a JSON column with the given path in SQL tree.

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

public class JsonScalarExpression : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression

type JsonScalarExpression = class
    inherit SqlExpression

Public Class JsonScalarExpression
Inherits SqlExpression

Inheritance: Expression

SqlExpression
JsonScalarExpression

Constructors

JsonScalarExpression(ColumnExpression, IProperty, IReadOnlyList<PathSegment>, Boolean)	Creates a new instance of the JsonScalarExpression class.
JsonScalarExpression(SqlExpression, IReadOnlyList<PathSegment>, Type, RelationalTypeMapping, Boolean)	Creates a new instance of the JsonScalarExpression class.

Properties

IsNullable	The value indicating whether the expression is nullable.
Json	The expression containing the JSON value.
JsonColumn	The column containg JSON value.
NodeType	(Inherited from SqlExpression)
Path	The list of path segments leading to the scalar from the root of the JSON stored in the column.
Type	(Inherited from SqlExpression)
TypeMapping	The RelationalTypeMapping associated with this expression. (Inherited from SqlExpression)

Methods

Equals(Object)	System.Linq.Expressions.Expression.Equals(System.Object)
GetHashCode()	System.Linq.Expressions.Expression.GetHashCode
Print(ExpressionPrinter)	Creates a printable string representation of the given expression using ExpressionPrinter.
Quote()	System.Linq.Expressions.Expression.Quote
Quote()	Quotes the expression; that is, returns an expression that, when evaluated, would construct an expression identical to this one. Used to generate code for precompiled queries, which reconstructs this expression. (Inherited from SqlExpression)
Update(ColumnExpression)	Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
Update(SqlExpression)	Creates a new expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression.
VisitChildren(ExpressionVisitor)	Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible.

Explicit Interface Implementations

IPrintableExpression.Print(ExpressionPrinter)

Creates a printable string representation of the given expression using ExpressionPrinter.

(Inherited from SqlExpression)

Applies to

通过