protected InformixDataProvider(string name, MappingSchema mappingSchema)
: base(name, mappingSchema)
{
SqlProviderFlags.IsParameterOrderDependent = true;
SqlProviderFlags.IsSubQueryTakeSupported = false;
SqlProviderFlags.IsInsertOrUpdateSupported = false;
SqlProviderFlags.IsGroupByExpressionSupported = false;
SqlProviderFlags.IsCrossJoinSupported = false;
SetCharField("CHAR", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("NCHAR", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("CHAR", (r, i) => DataTools.GetChar(r, i));
SetCharFieldToType <char>("NCHAR", (r, i) => DataTools.GetChar(r, i));
if (!Configuration.AvoidSpecificDataProviderAPI)
{
SetProviderField <IDataReader, float, float>((r, i) => GetFloat(r, i));
SetProviderField <IDataReader, double, double>((r, i) => GetDouble(r, i));
SetProviderField <IDataReader, decimal, decimal>((r, i) => GetDecimal(r, i));
SetField <IDataReader, float>((r, i) => GetFloat(r, i));
SetField <IDataReader, double>((r, i) => GetDouble(r, i));
SetField <IDataReader, decimal>((r, i) => GetDecimal(r, i));
}
_sqlOptimizer = new InformixSqlOptimizer(SqlProviderFlags);
}
public InformixDataProvider(string providerName)
: base(
providerName,
GetMappingSchema(providerName, InformixProviderAdapter.GetInstance(providerName).MappingSchema),
InformixProviderAdapter.GetInstance(providerName))
{
SqlProviderFlags.IsParameterOrderDependent = !Adapter.IsIDSProvider;
SqlProviderFlags.IsSubQueryTakeSupported = false;
SqlProviderFlags.IsInsertOrUpdateSupported = false;
SqlProviderFlags.IsGroupByExpressionSupported = false;
SqlProviderFlags.IsCrossJoinSupported = false;
SqlProviderFlags.IsCommonTableExpressionsSupported = true;
SqlProviderFlags.IsSubQueryOrderBySupported = true;
SqlProviderFlags.IsDistinctOrderBySupported = false;
SqlProviderFlags.IsUpdateFromSupported = false;
SqlProviderFlags.IsGroupByColumnRequred = true;
SetCharField("CHAR", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharField("NCHAR", (r, i) => r.GetString(i).TrimEnd(' '));
SetCharFieldToType <char>("CHAR", DataTools.GetCharExpression);
SetCharFieldToType <char>("NCHAR", DataTools.GetCharExpression);
SetProviderField <IDataReader, float, float>((r, i) => GetFloat(r, i));
SetProviderField <IDataReader, double, double>((r, i) => GetDouble(r, i));
SetProviderField <IDataReader, decimal, decimal>((r, i) => GetDecimal(r, i));
SetField <IDataReader, float>((r, i) => GetFloat(r, i));
SetField <IDataReader, double>((r, i) => GetDouble(r, i));
SetField <IDataReader, decimal>((r, i) => GetDecimal(r, i));
_sqlOptimizer = new InformixSqlOptimizer(SqlProviderFlags);
if (Adapter.GetBigIntReaderMethod != null)
{
SetField(typeof(long), "BIGINT", Adapter.GetBigIntReaderMethod, false, dataReaderType: Adapter.DataReaderType);
}
if (Name == ProviderName.Informix && Adapter.DecimalType != null)
{
SetProviderField(Adapter.DecimalType, typeof(decimal), Adapter.GetDecimalReaderMethod !, dataReaderType: Adapter.DataReaderType);
}
if (Adapter.DateTimeType != null)
{
SetProviderField(Adapter.DateTimeType, typeof(DateTime), Adapter.GetDateTimeReaderMethod, dataReaderType: Adapter.DataReaderType);
}
if (Adapter.TimeSpanType != null)
{
SetProviderField(Adapter.TimeSpanType, typeof(TimeSpan), Adapter.GetTimeSpanReaderMethod, dataReaderType: Adapter.DataReaderType);
}
}
