Safe Haskell	None
Language	Haskell2010

Database.MSSQL.Pool

Description

MSSQL Connection Pooling

Synopsis

newtype ConnectionString = ConnectionString {
- unConnectionString :: Text
}
data ConnectionOptions = ConnectionOptions {
- _coConnections :: Int
- _coStripes :: Int
- _coIdleTime :: Int
}
newtype MSSQLPool = MSSQLPool (Pool Connection)
initMSSQLPool :: ConnectionString -> ConnectionOptions -> IO MSSQLPool
drainMSSQLPool :: MSSQLPool -> IO ()
withMSSQLPool :: MonadBaseControl IO m => MSSQLPool -> (Connection -> m a) -> m (Either ODBCException a)

Documentation

newtype ConnectionString Source #

ODBC connection string for MSSQL server

Constructors

ConnectionString
Fields unConnectionString :: Text

Instances

Instances details

Eq ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool Methods (==) :: ConnectionString -> ConnectionString -> Bool # (/=) :: ConnectionString -> ConnectionString -> Bool #
Show ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool Methods showsPrec :: Int -> ConnectionString -> ShowS # show :: ConnectionString -> String # showList :: [ConnectionString] -> ShowS #
Generic ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool Associated Types type Rep ConnectionString :: Type -> Type # Methods from :: ConnectionString -> Rep ConnectionString x # to :: Rep ConnectionString x -> ConnectionString #
NFData ConnectionString Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods rnf :: ConnectionString -> () #
Hashable ConnectionString
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods hashWithSalt :: Int -> ConnectionString -> Int hash :: ConnectionString -> Int
FromJSON ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool Methods parseJSON :: Value -> Parser ConnectionString parseJSONList :: Value -> Parser [ConnectionString]
ToJSON ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool Methods toJSON :: ConnectionString -> Value toEncoding :: ConnectionString -> Encoding toJSONList :: [ConnectionString] -> Value toEncodingList :: [ConnectionString] -> Encoding
Cacheable ConnectionString Source #
Instance details Defined in Hasura.Backends.MSSQL.Connection Methods unchanged :: Accesses -> ConnectionString -> ConnectionString -> Bool Source #
type Rep ConnectionString Source #
Instance details Defined in Database.MSSQL.Pool type Rep ConnectionString = D1 ('MetaData "ConnectionString" "Database.MSSQL.Pool" "graphql-engine-1.0.0-inplace" 'True) (C1 ('MetaCons "ConnectionString" 'PrefixI 'True) (S1 ('MetaSel ('Just "unConnectionString") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text)))

data ConnectionOptions Source #

Constructors

ConnectionOptions
Fields _coConnections :: Int _coStripes :: Int _coIdleTime :: Int

Instances

Instances details

Eq ConnectionOptions Source #
Instance details Defined in Database.MSSQL.Pool Methods (==) :: ConnectionOptions -> ConnectionOptions -> Bool # (/=) :: ConnectionOptions -> ConnectionOptions -> Bool #
Show ConnectionOptions Source #
Instance details Defined in Database.MSSQL.Pool Methods showsPrec :: Int -> ConnectionOptions -> ShowS # show :: ConnectionOptions -> String # showList :: [ConnectionOptions] -> ShowS #

newtype MSSQLPool Source #

ODBC connection pool

Constructors

MSSQLPool (Pool Connection)

initMSSQLPool :: ConnectionString -> ConnectionOptions -> IO MSSQLPool Source #

Initialize an MSSQL pool with given connection configuration

drainMSSQLPool :: MSSQLPool -> IO () Source #

Destroy all pool resources

withMSSQLPool :: MonadBaseControl IO m => MSSQLPool -> (Connection -> m a) -> m (Either ODBCException a) Source #