Table of Contents

Class SqlUnaryExpression

Namespace
Microsoft.EntityFrameworkCore.Query.SqlExpressions
Assembly
Microsoft.EntityFrameworkCore.Relational.dll

An expression that represents an unary operation in a SQL tree.

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

public class SqlUnaryExpression : SqlExpression, IPrintableExpression
Inheritance
SqlUnaryExpression
Implements
IPrintableExpression
Inherited Members

Constructors

SqlUnaryExpression(ExpressionType, SqlExpression, Type, RelationalTypeMapping)

Creates a new instance of the SqlUnaryExpression class.

public SqlUnaryExpression(ExpressionType operatorType, SqlExpression operand, Type type, RelationalTypeMapping typeMapping)

Parameters

operatorType ExpressionType

The operator to apply.

operand SqlExpression

An expression on which operator is applied.

type Type

The Type of the expression.

typeMapping RelationalTypeMapping

The RelationalTypeMapping associated with the expression.

Properties

Operand

The operand of this SQL unary operation.

public virtual SqlExpression Operand { get; }

Property Value

SqlExpression

OperatorType

The operator of this SQL unary operation.

public virtual ExpressionType OperatorType { get; }

Property Value

ExpressionType

Methods

Equals(object)

public override bool Equals(object obj)

Parameters

obj object

Returns

bool

GetHashCode()

public override int GetHashCode()

Returns

int

Print(ExpressionPrinter)

protected override void Print(ExpressionPrinter expressionPrinter)

Parameters

expressionPrinter ExpressionPrinter

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.

public virtual SqlUnaryExpression Update(SqlExpression operand)

Parameters

operand SqlExpression

The Operand property of the result.

Returns

SqlUnaryExpression

This expression if no children changed, or an expression with the updated children.

VisitChildren(ExpressionVisitor)

protected override Expression VisitChildren(ExpressionVisitor visitor)

Parameters

visitor ExpressionVisitor

Returns

Expression