private static DataAccessProviderType GetDataAccessProviderTypeFromOptions(JetOptionsExtension jetOptions)
{
if (jetOptions.DataAccessProviderFactory == null)
{
throw new InvalidOperationException(JetStrings.DataAccessProviderFactory);
}
if (jetOptions.DataAccessProviderFactory
.GetType()
.GetTypesInHierarchy()
.Any(
t => string.Equals(
t.FullName,
"System.Data.OleDb.OleDbFactory",
StringComparison.OrdinalIgnoreCase)))
{
return(DataAccessProviderType.OleDb);
}
if (jetOptions.DataAccessProviderFactory
.GetType()
.GetTypesInHierarchy()
.Any(
t => string.Equals(
t.FullName,
"System.Data.Odbc.OdbcFactory",
StringComparison.OrdinalIgnoreCase)))
{
return(DataAccessProviderType.Odbc);
}
throw new InvalidOperationException("The JetConnection.DataAccessProviderFactory property needs to be set to an object of type OdbcFactory or OleDbFactory.");
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public JetRelationalConnection([NotNull] RelationalConnectionDependencies dependencies)
: base(dependencies)
{
_jetOptionsExtension = dependencies.ContextOptions.FindExtension <JetOptionsExtension>() ?? new JetOptionsExtension();
if (_jetOptionsExtension.DataAccessProviderFactory == null &&
((JetConnection)DbConnection)?.DataAccessProviderFactory == null)
{
throw new InvalidOperationException(JetStrings.DataAccessProviderFactory);
}
}
