Interface ISqlDataRecordFacade<TDataRecord>

Namespace

LfrlAnvil.Sql.Statements.Compilers

Assembly

LfrlAnvil.Sql.Core.dll

Represents a facade over an IDataRecord instance.

public interface ISqlDataRecordFacade<out TDataRecord> where TDataRecord : IDataRecord

Type Parameters

TDataRecord

DB data record type.

Remarks

Do not use this interface directly. It should only be used in query reader creation options, for custom value reading expressions. See SqlQueryMemberConfiguration for more information.

Properties

Record

Underlying DB data record instance. Usage of this property will be included in a query reader as-is, without any translation.

TDataRecord Record { get; }

Property Value

TDataRecord

Methods

GetNullable<T>(string)

Represents reading of a generic nullable value by field name from the Record.

[Pure]
T? GetNullable<T>(string name)

Parameters

name string

Field name.

Returns

T

Read value.

Type Parameters

T

Value type.

Remarks

Usage of this method will be translated so that the field name will be replaced with an equivalent cached ordinal.

GetNullable<T>(string, T)

Represents reading of a generic nullable value by field name from the Record.

[Pure]
T GetNullable<T>(string name, T @default) where T : notnull

Parameters

name string

Field name.

default T

Default value to return instead of null.

Returns

T

Read value or default when read value is null.

Type Parameters

T

Value type.

Remarks

Usage of this method will be translated so that the field name will be replaced with an equivalent cached ordinal.

GetOrdinal(string)

Returns an ordinal value associated with the provided field name in the Record.

[Pure]
int GetOrdinal(string name)

Parameters

name string

Field name.

Returns

int

Ordinal value associated with the provided field name.

Remarks

Usage of this method will be translated so that the cached ordinal is returned.

Get<T>(string)

Represents reading of a generic non-null value by field name from the Record.

[Pure]
T Get<T>(string name) where T : notnull

Parameters

name string

Field name.

Returns

T

Read value.

Type Parameters

T

Value type.

Remarks

Usage of this method will be translated so that the field name will be replaced with an equivalent cached ordinal.

IsNull(string)

Checks whether or not a value associated with the provided field name is null in the Record.

[Pure]
bool IsNull(string name)

Parameters

name string

Field name.

Returns

bool

true when value is null, otherwise false.

Remarks

Usage of this method will be translated so that the field name will be replaced with an equivalent cached ordinal.