private async Task <bool> BufferlessMoveNext(DbContext _, bool buffer, CancellationToken cancellationToken)
{
if (_dataReader == null)
{
await _relationalQueryContext.Connection.OpenAsync(cancellationToken);
try
{
var relationalCommand
= _shaperCommandContext
.GetRelationalCommand(_relationalQueryContext.ParameterValues, _relationalQueryContext);
await _relationalQueryContext.Connection
.RegisterBufferableAsync(this, cancellationToken);
_dataReader
= await relationalCommand.ExecuteReaderAsync(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalQueryContext.CommandLogger,
cancellationToken);
}
catch
{
// If failure happens creating the data reader, then it won't be available to
// handle closing the connection, so do it explicitly here to preserve ref counting.
_relationalQueryContext.Connection.Close();
throw;
}
_dbDataReader = _dataReader.DbDataReader;
_shaperCommandContext.NotifyReaderCreated(_dbDataReader);
_valueBufferFactory = _shaperCommandContext.ValueBufferFactory;
}
var hasNext = await _dataReader.ReadAsync(cancellationToken);
Current
= hasNext
? _shaper.Shape(_relationalQueryContext, _valueBufferFactory.Create(_dbDataReader))
: default;
if (buffer)
{
await BufferAllAsync(cancellationToken);
}
return(hasNext);
}
private async Task <bool> BufferlessMoveNext(bool buffer, CancellationToken cancellationToken)
{
try
{
if (_dataReader == null)
{
await _relationalQueryContext.Connection.OpenAsync(cancellationToken);
var relationalCommand
= _shaperCommandContext
.GetRelationalCommand(_relationalQueryContext.ParameterValues);
await _relationalQueryContext.Connection
.RegisterBufferableAsync(this, cancellationToken);
_dataReader
= await relationalCommand.ExecuteReaderAsync(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
cancellationToken);
_dbDataReader = _dataReader.DbDataReader;
_shaperCommandContext.NotifyReaderCreated(_dbDataReader);
_valueBufferFactory = _shaperCommandContext.ValueBufferFactory;
}
var hasNext = await _dataReader.ReadAsync(cancellationToken);
Current
= hasNext
? _shaper.Shape(_relationalQueryContext, _valueBufferFactory.Create(_dbDataReader))
: default(T);
if (buffer)
{
await BufferAllAsync(cancellationToken);
}
return(hasNext);
}
catch (Exception)
{
_dataReader = null;
_dbDataReader = null;
throw;
}
}
private bool BufferlessMoveNext(DbContext _, bool buffer)
{
if (_dataReader == null)
{
_relationalQueryContext.Connection.Open();
try
{
var relationalCommand
= _shaperCommandContext
.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_relationalQueryContext.Connection.RegisterBufferable(this);
_dataReader
= relationalCommand.ExecuteReader(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues);
}
catch
{
// If failure happens creating the data reader, then it won't be available to
// handle closing the connection, so do it explicitly here to preserve ref counting.
_relationalQueryContext.Connection.Close();
throw;
}
_dbDataReader = _dataReader.DbDataReader;
_shaperCommandContext.NotifyReaderCreated(_dbDataReader);
_valueBufferFactory = _shaperCommandContext.ValueBufferFactory;
}
var hasNext = _dataReader.Read();
Current
= hasNext
? _shaper.Shape(_relationalQueryContext, _valueBufferFactory.Create(_dbDataReader))
: default;
if (buffer)
{
BufferAll();
}
return(hasNext);
}
private bool BufferlessMoveNext(bool buffer)
{
try
{
if (_dataReader == null)
{
_relationalQueryContext.Connection.Open();
var relationalCommand
= _shaperCommandContext
.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_relationalQueryContext.Connection.RegisterBufferable(this);
_dataReader
= relationalCommand.ExecuteReader(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues);
_dbDataReader = _dataReader.DbDataReader;
_shaperCommandContext.NotifyReaderCreated(_dbDataReader);
_valueBufferFactory = _shaperCommandContext.ValueBufferFactory;
}
var hasNext = _dataReader.Read();
Current
= hasNext
? _shaper.Shape(_relationalQueryContext, _valueBufferFactory.Create(_dbDataReader))
: default(T);
if (buffer)
{
BufferAll();
}
return(hasNext);
}
catch (Exception)
{
_dataReader = null;
_dbDataReader = null;
throw;
}
}
