Safe Haskell	Safe
Language	Haskell2010

Eventful.Store.Queries

Synopsis

Documentation

data QueryRange key position #

This type defines how to query an event stream. It defines the stream key and the start/stop points for the query.

Constructors

QueryRange
Fields queryRangeKey :: key queryRangeStart :: QueryStart position queryRangeLimit :: QueryLimit position

Instances

(Eq position, Eq key) => Eq (QueryRange key position) #
Methods (==) :: QueryRange key position -> QueryRange key position -> Bool # (/=) :: QueryRange key position -> QueryRange key position -> Bool #
(Show position, Show key) => Show (QueryRange key position) #
Methods showsPrec :: Int -> QueryRange key position -> ShowS # show :: QueryRange key position -> String # showList :: [QueryRange key position] -> ShowS #

data QueryStart position #

This type defines where an event store query starts.

Constructors

StartFromBeginning
StartQueryAt position

Instances

Functor QueryStart #
Methods fmap :: (a -> b) -> QueryStart a -> QueryStart b # (<$) :: a -> QueryStart b -> QueryStart a #
Eq position => Eq (QueryStart position) #
Methods (==) :: QueryStart position -> QueryStart position -> Bool # (/=) :: QueryStart position -> QueryStart position -> Bool #
Show position => Show (QueryStart position) #
Methods showsPrec :: Int -> QueryStart position -> ShowS # show :: QueryStart position -> String # showList :: [QueryStart position] -> ShowS #

data QueryLimit position #

This type is used to limit the results of a query from an event store.

Constructors

Instances

Functor QueryLimit #
Methods fmap :: (a -> b) -> QueryLimit a -> QueryLimit b # (<$) :: a -> QueryLimit b -> QueryLimit a #
Eq position => Eq (QueryLimit position) #
Methods (==) :: QueryLimit position -> QueryLimit position -> Bool # (/=) :: QueryLimit position -> QueryLimit position -> Bool #
Show position => Show (QueryLimit position) #
Methods showsPrec :: Int -> QueryLimit position -> ShowS # show :: QueryLimit position -> String # showList :: [QueryLimit position] -> ShowS #

allEvents :: key -> QueryRange key position #

eventsUntil :: key -> position -> QueryRange key position #

eventsStartingAt :: key -> position -> QueryRange key position #

eventsStartingAtUntil :: key -> position -> position -> QueryRange key position #

eventsStartingAtTakeLimit :: key -> position -> Int -> QueryRange key position #