Struct SqlAsyncScalarQueryReader

Namespace

LfrlAnvil.Sql.Statements

Assembly

LfrlAnvil.Sql.Core.dll

Represents an asynchronous type-erased scalar query reader.

public readonly record struct SqlAsyncScalarQueryReader : IEquatable<SqlAsyncScalarQueryReader>

Implements

IEquatable<SqlAsyncScalarQueryReader>

Inherited Members

ValueType.Equals(object)

ValueType.GetHashCode()

ValueType.ToString()

object.Equals(object, object)

object.GetType()

object.ReferenceEquals(object, object)

Extension Methods

SqlStatementObjectExtensions.Bind(SqlAsyncScalarQueryReader, string)

Constructors

SqlAsyncScalarQueryReader(SqlDialect, Func<IDataReader, CancellationToken, ValueTask<SqlScalarQueryResult>>)

Represents an asynchronous type-erased scalar query reader.

public SqlAsyncScalarQueryReader(SqlDialect Dialect, Func<IDataReader, CancellationToken, ValueTask<SqlScalarQueryResult>> Delegate)

Parameters

Dialect SqlDialect

SQL dialect with which this query reader is associated.

Delegate Func<IDataReader, CancellationToken, ValueTask<SqlScalarQueryResult>>

Underlying delegate.

Properties

Delegate

Underlying delegate.

public Func<IDataReader, CancellationToken, ValueTask<SqlScalarQueryResult>> Delegate { get; init; }

Property Value

Func<IDataReader, CancellationToken, ValueTask<SqlScalarQueryResult>>

Dialect

SQL dialect with which this query reader is associated.

public SqlDialect Dialect { get; init; }

Property Value

SqlDialect

Methods

ReadAsync(IDataReader, CancellationToken)

Asynchronously reads a scalar value.

[Pure]
public ValueTask<SqlScalarQueryResult> ReadAsync(IDataReader reader, CancellationToken cancellationToken = default)

Parameters

reader IDataReader

IDataReader to read from.

cancellationToken CancellationToken

Optional CancellationToken.

Returns

ValueTask<SqlScalarQueryResult>

ValueTask<TResult> that returns a read scalar value.