Safe Haskell	None
Language	Haskell2010

Database.CQL.IO.Connection

Contents

Lifecycle
Requests
- Queries
- Events
Re-exports

Synopsis

data Connection
data ConnId
ident :: Lens' Connection ConnId
host :: Lens' Connection Host
connect :: MonadIO m => ConnectionSettings -> TimeoutManager -> Version -> Logger -> Host -> m Connection
canConnect :: MonadIO m => Host -> m Bool
close :: Connection -> IO ()
request :: (Tuple a, Tuple b) => Connection -> Request k a b -> IO (Response k a b)
type Raw a = a () () ()
requestRaw :: Connection -> Raw Request -> IO (Raw Response)
query :: (Tuple a, Tuple b, MonadIO m) => Connection -> Consistency -> QueryString k a b -> a -> m [b]
defQueryParams :: Consistency -> a -> QueryParams a
type EventHandler = Event -> IO ()
allEventTypes :: [EventType]
register :: MonadIO m => Connection -> [EventType] -> EventHandler -> m ()
resolve :: HostName -> PortNumber -> IO [InetAddr]

Documentation

data Connection Source #

A connection to a Host in a Cassandra cluster.

Instances

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

data ConnId Source #

Instances

Eq ConnId Source #
Instance details Defined in Database.CQL.IO.Connection.Settings Methods (==) :: ConnId -> ConnId -> Bool # (/=) :: ConnId -> ConnId -> Bool #
Ord ConnId Source #
Instance details Defined in Database.CQL.IO.Connection.Settings Methods compare :: ConnId -> ConnId -> Ordering # (<) :: ConnId -> ConnId -> Bool # (<=) :: ConnId -> ConnId -> Bool # (>) :: ConnId -> ConnId -> Bool # (>=) :: ConnId -> ConnId -> Bool # max :: ConnId -> ConnId -> ConnId # min :: ConnId -> ConnId -> ConnId #
Hashable ConnId Source #
Instance details Defined in Database.CQL.IO.Connection.Settings Methods hashWithSalt :: Int -> ConnId -> Int # hash :: ConnId -> Int #

ident :: Lens' Connection ConnId Source #

host :: Lens' Connection Host Source #

Lifecycle

connect :: MonadIO m => ConnectionSettings -> TimeoutManager -> Version -> Logger -> Host -> m Connection Source #

Establish and initialise a new connection to a Cassandra host.

canConnect :: MonadIO m => Host -> m Bool Source #

Check the connectivity of a Cassandra host on a new connection.

close :: Connection -> IO () Source #

Requests

request :: (Tuple a, Tuple b) => Connection -> Request k a b -> IO (Response k a b) Source #

type Raw a = a () () () Source #

requestRaw :: Connection -> Raw Request -> IO (Raw Response) Source #

Queries

query :: (Tuple a, Tuple b, MonadIO m) => Connection -> Consistency -> QueryString k a b -> a -> m [b] Source #

defQueryParams :: Consistency -> a -> QueryParams a Source #

Construct default QueryParams for the given consistency and bound values. In particular, no page size, paging state or serial consistency will be set.

Events

type EventHandler = Event -> IO () Source #

allEventTypes :: [EventType] Source #

register :: MonadIO m => Connection -> [EventType] -> EventHandler -> m () Source #

Re-exports

resolve :: HostName -> PortNumber -> IO [InetAddr] Source #