Safe Haskell	None
Language	Haskell2010

Database.Dpi.Field

Synopsis

data DataField = DataField {
- info :: !Data_QueryInfo
- value :: !DataValue
}
class FromDataFields a where
- fromDataFields' :: [DataField] -> IO a
- fromDataFields :: DataFieldMap -> IO a
class FromDataField a where
- fromDataField :: DataField -> IO (Maybe a)
class ToDataField a where
- toDataField :: a -> NativeTypeNum -> OracleTypeNum -> IO DataValue
isNullable :: DataField -> Bool
getName :: DataField -> IO ByteString
fromByteString :: ByteString -> IO Data_Bytes
toByteString :: Data_Bytes -> IO ByteString
toDataFieldMap :: [DataField] -> IO DataFieldMap
readDataField :: FromDataField a => DataFieldMap -> ByteString -> IO (Maybe a)
type DataFieldMap = [(ByteString, DataField)]

Documentation

data DataField Source #

Database Raw Data with Type Info

Constructors

DataField
Fields info :: !Data_QueryInfo Type Info value :: !DataValue Raw Value

Instances

Show DataField Source #
Instance details Defined in Database.Dpi.Field Methods showsPrec :: Int -> DataField -> ShowS # show :: DataField -> String # showList :: [DataField] -> ShowS #
FromDataFields [DataField] Source #
Instance details Defined in Database.Dpi.Field Methods fromDataFields' :: [DataField] -> IO [DataField] Source # fromDataFields :: DataFieldMap -> IO [DataField] Source #

class FromDataFields a where Source #

Minimal complete definition

fromDataFields | fromDataFields'

Methods

fromDataFields' :: [DataField] -> IO a Source #

fromDataFields :: DataFieldMap -> IO a Source #

Instances

FromDataFields String Source #
Instance details Defined in Database.Dpi.Field Methods fromDataFields' :: [DataField] -> IO String Source # fromDataFields :: DataFieldMap -> IO String Source #
FromDataFields [DataField] Source #
Instance details Defined in Database.Dpi.Field Methods fromDataFields' :: [DataField] -> IO [DataField] Source # fromDataFields :: DataFieldMap -> IO [DataField] Source #

class FromDataField a where Source #

Some Type can convert from DataField

Methods

fromDataField :: DataField -> IO (Maybe a) Source #

Instances

FromDataField Bool Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Bool) Source #
FromDataField Double Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Double) Source #
FromDataField Float Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Float) Source #
FromDataField Int Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Int) Source #
FromDataField Int64 Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Int64) Source #
FromDataField Integer Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Integer) Source #
FromDataField Word Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Word) Source #
FromDataField Word64 Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Word64) Source #
FromDataField ByteString Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe ByteString) Source #
FromDataField Scientific Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe Scientific) Source #
FromDataField ZonedTime Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe ZonedTime) Source #
FromDataField LocalTime Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe LocalTime) Source #
FromDataField UTCTime Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe UTCTime) Source #
FromDataField DiffTime Source #
Instance details Defined in Database.Dpi.Field Methods fromDataField :: DataField -> IO (Maybe DiffTime) Source #

class ToDataField a where Source #

Some type can convert to DataValue

Methods

toDataField :: a -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #

Instances

ToDataField Bool Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Bool -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Double Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Double -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Float Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Float -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Int Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Int -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Int64 Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Int64 -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Integer Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Integer -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Word Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Word -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Word64 Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Word64 -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField ByteString Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: ByteString -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField Scientific Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: Scientific -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField ZonedTime Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: ZonedTime -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField UTCTime Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: UTCTime -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #
ToDataField DiffTime Source #
Instance details Defined in Database.Dpi.Field Methods toDataField :: DiffTime -> NativeTypeNum -> OracleTypeNum -> IO DataValue Source #

isNullable :: DataField -> Bool Source #

Check if data field is nullable

getName :: DataField -> IO ByteString Source #

fromByteString :: ByteString -> IO Data_Bytes Source #

toByteString :: Data_Bytes -> IO ByteString Source #

Convert from CStringLen to ByteString

toDataFieldMap :: [DataField] -> IO DataFieldMap Source #

readDataField :: FromDataField a => DataFieldMap -> ByteString -> IO (Maybe a) Source #

type DataFieldMap = [(ByteString, DataField)] Source #