DatabaseExporter

StockSharp.Algo.Export

The export into database.

Constructors

public DatabaseExporter(IDatabaseProvider dbProvider, DataType dataType, DatabaseConnectionPair connection, decimal? priceStep, decimal? volumeStep)

databaseExporter = DatabaseExporter(dbProvider, dataType, connection, priceStep, volumeStep)

The export into database.

dbProvider: IDatabaseProvider
dataType: Data type info.
connection: The connection to DB.
priceStep: Minimum price step.
volumeStep: Minimum volume step.

Properties

BatchSize

public int BatchSize { get; set; }

value = databaseExporter.BatchSize
databaseExporter.BatchSize = value

The size of transmitted data package. The default is 50 elements.

CheckUnique

public bool CheckUnique { get; set; }

value = databaseExporter.CheckUnique
databaseExporter.CheckUnique = value

To check uniqueness of data in the database. It effects performance. The default is enabled.

DropExisting

public bool DropExisting { get; set; }

value = databaseExporter.DropExisting
databaseExporter.DropExisting = value

Drop existing table before export. The default is disabled.

PriceStep

public decimal? PriceStep { get; }

value = databaseExporter.PriceStep

Minimum price step.

TableNamePrefix

public string TableNamePrefix { get; set; }

value = databaseExporter.TableNamePrefix
databaseExporter.TableNamePrefix = value

Optional prefix for table names (e.g. "SS_").

VolumeStep

public decimal? VolumeStep { get; }

value = databaseExporter.VolumeStep

Minimum volume step.

Methods

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<IndicatorValue> values, CancellationToken cancellationToken)

result = databaseExporter.Export(values, cancellationToken)

To export IndicatorValue asynchronously.

values: Values.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<PositionChangeMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export PositionChangeMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<SecurityMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export SecurityMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<NewsMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export NewsMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<CandleMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export CandleMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<Level1ChangeMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export Level1ChangeMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<BoardMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export BoardMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<BoardStateMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export BoardStateMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

Export

protected override Task<ValueTuple<int, DateTime?>> Export(IAsyncEnumerable<QuoteChangeMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.Export(messages, cancellationToken)

To export QuoteChangeMessage asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

ExportOrderLogAsync

protected override Task<ValueTuple<int, DateTime?>> ExportOrderLogAsync(IAsyncEnumerable<ExecutionMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.ExportOrderLogAsync(messages, cancellationToken)

To export OrderLog asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

ExportTicksAsync

protected override Task<ValueTuple<int, DateTime?>> ExportTicksAsync(IAsyncEnumerable<ExecutionMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.ExportTicksAsync(messages, cancellationToken)

To export Ticks asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.

ExportTransactionsAsync

protected override Task<ValueTuple<int, DateTime?>> ExportTransactionsAsync(IAsyncEnumerable<ExecutionMessage> messages, CancellationToken cancellationToken)

result = databaseExporter.ExportTransactionsAsync(messages, cancellationToken)

To export Transactions asynchronously.

messages: Messages.
cancellationToken: Cancellation token.

Returns: Count and last time.