persistent-zookeeper-0.0.3: Backend for persistent library using Zookeeper.

Safe Haskell	None
Language	Haskell98

Database.Persist.Zookeeper

Synopsis

Documentation

data ZookeeperConf Source

Information required to connect to a Zookeeper server

Constructors

ZookeeperConf
Fields zCoord :: String zTimeout :: Timeout zNumStripes :: Int zIdleTime :: NominalDiffTime zMaxResources :: Int

Instances

Show ZookeeperConf
PersistConfig ZookeeperConf
type PersistConfigPool ZookeeperConf = Connection
type PersistConfigBackend ZookeeperConf = ZookeeperT

type Connection = Pool ZooStat Source

newtype ZookeeperT m a Source

Monad reader transformer keeping Zookeeper connection through out the work

Constructors

ZookeeperT
Fields runZookeeperT :: ReaderT Connection m a

Instances

MonadTrans ZookeeperT
Monad m => Monad (ZookeeperT m)
Functor m => Functor (ZookeeperT m)
MonadPlus m => MonadPlus (ZookeeperT m)
Applicative m => Applicative (ZookeeperT m)
MonadIO m => MonadIO (ZookeeperT m)
(Applicative m, Functor m, MonadIO m, MonadBaseControl IO m) => PersistUnique (ZookeeperT m)
(Applicative m, Functor m, MonadIO m, MonadBaseControl IO m) => PersistQuery (ZookeeperT m)
(Applicative m, Functor m, MonadIO m, MonadBaseControl IO m) => PersistStore (ZookeeperT m)
type PersistMonadBackend (ZookeeperT m) = ZookeeperBackend

runZookeeperPool :: ZookeeperT m a -> Connection -> m a Source

withZookeeperConn :: (Monad m, MonadIO m) => ZookeeperConf -> (Connection -> m a) -> m a Source

Run a connection reader function against a Zookeeper configuration

thisConnection :: Monad m => ZookeeperT m Connection Source

Extracts connection from ZookeeperT monad transformer

module Database.Persist

data ZookeeperBackend Source

Instances

PathPiece (KeyBackend ZookeeperBackend entity)

ToPathPiece is used to convert a key to/from text

execZookeeperT :: (Read a, Show a, Monad m, MonadIO m) => (Zookeeper -> IO (Either ZKError a)) -> ZookeeperT m a Source

filter2path :: PersistEntity val => [Filter val] -> String Source

getMap :: PersistEntity val => val -> Map Text PersistValue Source

getList :: PersistEntity val => val -> [(Text, PersistValue)] Source

getFieldsName :: PersistEntity val => val -> [Text] Source

getFieldName :: (PersistEntity val, PersistField typ) => EntityField val typ -> Text Source

fieldval :: (PersistEntity val, PersistField typ) => EntityField val typ -> val -> PersistValue Source

updateEntity :: PersistEntity val => val -> [Update val] -> Either Text val Source

updateVals :: PersistEntity val => [(Text, PersistValue)] -> Update val -> [(Text, PersistValue)] Source

updateVal :: PersistEntity val => PersistValue -> Update val -> PersistValue Source

dummyFromFilts :: [Filter v] -> Maybe v Source

data OrNull Source

Constructors

OrNullYes
OrNullNo

filterClauseHelper Source

Arguments

:: PersistEntity val
=> Bool	include WHERE?
-> OrNull
-> val
-> [Filter val]
-> (Bool, Text, [PersistValue])

filterClause :: PersistEntity val => val -> [Filter val] -> (Bool, Text, [PersistValue]) Source