Class DatabaseReaderMapper

Provides a way to map from a IDatabaseReader to a known object type.

Inheritance

System.Object

DatabaseReaderMapper

DatabaseReaderMapper<TEntity>

Implements

IDatabaseReaderMapper

Namespace: Paradigm.ORM.Data.Mappers

Assembly: Paradigm.ORM.Data.dll

Syntax

public class DatabaseReaderMapper : object, IDatabaseReaderMapper

Constructors

DatabaseReaderMapper(IServiceProvider, IDatabaseConnector, IColumnPropertyDescriptorCollection)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IServiceProvider serviceProvider, IDatabaseConnector connector, IColumnPropertyDescriptorCollection descriptor)

Parameters

Type	Name	Description
IServiceProvider	serviceProvider	The service provider.
IDatabaseConnector	connector	A reference to a database connector.
IColumnPropertyDescriptorCollection	descriptor	A column property descriptor collection to extract mapping information.

DatabaseReaderMapper(IServiceProvider, IDatabaseConnector, Type)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IServiceProvider serviceProvider, IDatabaseConnector connector, Type type)

Parameters

Type	Name	Description
IServiceProvider	serviceProvider	The service provider.
IDatabaseConnector	connector	A reference to a database connector.
Type	type	The type containing the mapping information, or the reference to the mapping information.

DatabaseReaderMapper(IServiceProvider, IColumnPropertyDescriptorCollection)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IServiceProvider serviceProvider, IColumnPropertyDescriptorCollection descriptor)

Parameters

Type	Name	Description
IServiceProvider	serviceProvider	The service provider.
IColumnPropertyDescriptorCollection	descriptor	A column property descriptor collection to extract mapping information.

DatabaseReaderMapper(IServiceProvider, Type)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IServiceProvider serviceProvider, Type type)

Parameters

Type	Name	Description
IServiceProvider	serviceProvider	The service provider.
Type	type	The type containing the mapping information, or the reference to the mapping information.

DatabaseReaderMapper(IDatabaseConnector, IColumnPropertyDescriptorCollection)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IDatabaseConnector connector, IColumnPropertyDescriptorCollection descriptor)

Parameters

Type	Name	Description
IDatabaseConnector	connector	A reference to a database connector.
IColumnPropertyDescriptorCollection	descriptor	A column property descriptor collection to extract mapping information.

DatabaseReaderMapper(IDatabaseConnector, Type)

Initializes a new instance of the DatabaseReaderMapper class.

Declaration

public DatabaseReaderMapper(IDatabaseConnector connector, Type type)

Parameters

Type	Name	Description
IDatabaseConnector	connector	A reference to a database connector.
Type	type	The type containing the mapping information, or the reference to the mapping information.

Properties

Connector

Gets the database connector.

Declaration

protected IDatabaseConnector Connector { get; }

Property Value

Type	Description
IDatabaseConnector

Descriptor

Gets the table type descriptor used to extract the mapping information.

Declaration

protected IColumnPropertyDescriptorCollection Descriptor { get; }

Property Value

Type	Description
IColumnPropertyDescriptorCollection

ServiceProvider

Gets the service provider.

Declaration

protected IServiceProvider ServiceProvider { get; }

Property Value

Type	Description
IServiceProvider

ValueConverter

Gets the value converter.

Declaration

protected IValueConverter ValueConverter { get; }

Property Value

Type	Description
IValueConverter

Methods

CreateInstance()

Creates a new instance of the required type before mapping values.

Declaration

protected virtual object CreateInstance()

Returns

Type	Description
System.Object

Map(IDatabaseReader)

Gets a list of objects mapped from a database reader.

Declaration

public List<object> Map(IDatabaseReader reader)

Parameters

Type	Name	Description
IDatabaseReader	reader	A database reader cursor.

Returns

Type	Description
List<System.Object>	A list of mapped objects.

MapAsync(IDatabaseReader)

Gets a list of objects mapped from a database reader.

Declaration

public Task<List<object>> MapAsync(IDatabaseReader reader)

Parameters

Type	Name	Description
IDatabaseReader	reader	A database reader cursor.

Returns

Type	Description
Task<List<System.Object>>	A list of mapped objects.

MapRow(IDatabaseReader)

Maps one single row from the IDatabaseReader.

Declaration

protected virtual object MapRow(IDatabaseReader reader)

Parameters

Type	Name	Description
IDatabaseReader	reader	A database reader cursor.

Returns

Type	Description
System.Object	A new instance of the known object type already mapped.

Remarks

This method do not advance the reading cursor.

MapRowAsync(IDatabaseReader)

Maps one single row from the IDatabaseReader.

Declaration

protected virtual Task<object> MapRowAsync(IDatabaseReader reader)

Parameters

Type	Name	Description
IDatabaseReader	reader	A database reader cursor.

Returns

Type	Description
Task<System.Object>	A new instance of the known object type already mapped.

Remarks

This method do not advance the reading cursor.

Implements

IDatabaseReaderMapper

Extension Methods

ObjectExtensions.ThrowIfFails<TException>(Object, Action, String)

ObjectExtensions.ThrowIfFails<TException, TResult>(Object, Func<TResult>, String)

ObjectExtensions.ThrowIfFailsAsync<TException>(Object, Func<Task>, String)

ObjectExtensions.ThrowIfFailsAsync<TException, TResult>(Object, Func<Task<TResult>>, String)

See Also

IDatabaseReaderMapper