private bool InitializeReader(DbContext _, bool result)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger));
_indexMap = BuildIndexMap(_columnNames, _dataReader.DbDataReader);
_relationalQueryContext.InitializeStateManager(_performIdentityResolution);
return(result);
}
private bool InitializeReader(DbContext _, bool result)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger));
_resultCoordinator = new SplitQueryResultCoordinator();
_relationalQueryContext.InitializeStateManager(_standAloneStateManager);
return(result);
}
private bool InitializeReader(DbContext _, bool result)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_readerColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger));
_indexMap = BuildIndexMap(_columnNames, _dataReader.DbDataReader);
_resultCoordinator = new ResultCoordinator();
return(result);
}
private async Task <bool> InitializeReaderAsync(DbContext _, bool result, CancellationToken cancellationToken)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= await relationalCommand.ExecuteReaderAsync(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger),
cancellationToken)
.ConfigureAwait(false);
_resultCoordinator = new SplitQueryResultCoordinator();
_relationalQueryContext.InitializeStateManager(_standAloneStateManager);
return(result);
}
private async Task <bool> InitializeReaderAsync(DbContext _, bool result, CancellationToken cancellationToken)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(
_relationalQueryContext.ParameterValues);
_dataReader
= await relationalCommand.ExecuteReaderAsync(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_readerColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger),
cancellationToken);
_indexMap = BuildIndexMap(_columnNames, _dataReader.DbDataReader);
_resultCoordinator = new ResultCoordinator();
return(result);
}
private bool InitializeReader(DbContext _, bool result)
{
EntityFrameworkEventSource.Log.QueryExecuting();
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader = relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger,
_detailedErrorsEnabled));
_resultCoordinator = new SingleQueryResultCoordinator();
_relationalQueryContext.InitializeStateManager(_standAloneStateManager);
return(result);
}
private bool InitializeReader(DbContext _, bool result)
{
EntityFrameworkEventSource.Log.QueryExecuting();
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger));
_indexMap = BuildIndexMap(_columnNames, _dataReader.DbDataReader);
_relationalQueryContext.InitializeStateManager(_standAloneStateManager);
return(result);
}
private async Task <bool> InitializeReaderAsync(DbContext _, bool result, CancellationToken cancellationToken)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader
= await relationalCommand.ExecuteReaderAsync(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger),
cancellationToken)
.ConfigureAwait(false);
_indexMap = BuildIndexMap(_columnNames, _dataReader.DbDataReader);
_relationalQueryContext.InitializeStateManager(_performIdentityResolution);
return(result);
}
private async Task <bool> InitializeReaderAsync(DbContext _, bool result, CancellationToken cancellationToken)
{
EntityFrameworkEventSource.Log.QueryExecuting();
var relationalCommand = _relationalCommandCache.GetRelationalCommand(_relationalQueryContext.ParameterValues);
_dataReader = await relationalCommand.ExecuteReaderAsync(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalCommandCache.ReaderColumns,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger,
_detailedErrorsEnabled),
cancellationToken)
.ConfigureAwait(false);
_resultCoordinator = new SingleQueryResultCoordinator();
_relationalQueryContext.InitializeStateManager(_standAloneStateManager);
return(result);
}
public bool MoveNext()
{
try
{
using (_relationalQueryContext.ConcurrencyDetector.EnterCriticalSection())
{
if (_dataReader == null)
{
var relationalCommand = _relationalCommandCache.GetRelationalCommand(
_relationalQueryContext.ParameterValues);
_dataReader
= relationalCommand.ExecuteReader(
new RelationalCommandParameterObject(
_relationalQueryContext.Connection,
_relationalQueryContext.ParameterValues,
_relationalQueryContext.Context,
_relationalQueryContext.CommandLogger));
// Non-Composed FromSql
if (_columnNames != null)
{
var readerColumns = Enumerable.Range(0, _dataReader.DbDataReader.FieldCount)
.ToDictionary(i => _dataReader.DbDataReader.GetName(i), i => i, StringComparer.OrdinalIgnoreCase);
_indexMap = new int[_columnNames.Count];
for (var i = 0; i < _columnNames.Count; i++)
{
var columnName = _columnNames[i];
if (!readerColumns.TryGetValue(columnName, out var ordinal))
{
throw new InvalidOperationException(RelationalStrings.FromSqlMissingColumn(columnName));
}
_indexMap[i] = ordinal;
}
}
else
{
_indexMap = null;
}
_resultCoordinator = new ResultCoordinator();
}
var hasNext = _resultCoordinator.HasNext ?? _dataReader.Read();
Current = default;
if (hasNext)
{
while (true)
{
_resultCoordinator.ResultReady = true;
_resultCoordinator.HasNext = null;
Current = _shaper(
_relationalQueryContext, _dataReader.DbDataReader,
_resultCoordinator.ResultContext, _indexMap, _resultCoordinator);
if (_resultCoordinator.ResultReady)
{
// We generated a result so null out previously stored values
_resultCoordinator.ResultContext.Values = null;
break;
}
if (!_dataReader.Read())
{
_resultCoordinator.HasNext = false;
// Enumeration has ended, materialize last element
_resultCoordinator.ResultReady = true;
Current = _shaper(
_relationalQueryContext, _dataReader.DbDataReader,
_resultCoordinator.ResultContext, _indexMap, _resultCoordinator);
break;
}
}
}
return(hasNext);
}
}
catch (Exception exception)
{
_logger.QueryIterationFailed(_contextType, exception);
throw;
}
}
