Eventful.Store.Queries

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

NoQueryLimit

MaxNumberOfEvents Int

StopQueryAt position

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