Safe Haskell	None
Language	Haskell2010

Eventium.Store.Memory

Synopsis

tvarEventStoreReader :: TVar (EventMap event) -> VersionedEventStoreReader STM event
tvarEventStoreWriter :: TVar (EventMap event) -> VersionedEventStoreWriter STM event
tvarGlobalEventStoreReader :: TVar (EventMap event) -> GlobalEventStoreReader STM event
stateEventStoreReader :: forall event (m :: Type -> Type). MonadState (EventMap event) m => VersionedEventStoreReader m event
stateEventStoreWriter :: forall event (m :: Type -> Type). MonadState (EventMap event) m => VersionedEventStoreWriter m event
stateGlobalEventStoreReader :: forall event (m :: Type -> Type). MonadState (EventMap event) m => GlobalEventStoreReader m event
embeddedStateEventStoreReader :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> VersionedEventStoreReader m event
embeddedStateEventStoreWriter :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> (s -> EventMap event -> s) -> VersionedEventStoreWriter m event
embeddedStateGlobalEventStoreReader :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> GlobalEventStoreReader m event
data EventMap event
emptyEventMap :: EventMap event
eventMapTVar :: IO (TVar (EventMap event))
module Eventium.Store.Class

Documentation

tvarEventStoreReader :: TVar (EventMap event) -> VersionedEventStoreReader STM event Source #

An EventStoreReader that stores events in a TVar and runs in STM. This functions initializes the store by creating the TVar and hooking up the event store API to that TVar.

tvarEventStoreWriter :: TVar (EventMap event) -> VersionedEventStoreWriter STM event Source #

tvarGlobalEventStoreReader :: TVar (EventMap event) -> GlobalEventStoreReader STM event Source #

Analog of tvarEventStoreReader for a GlobalEventStoreReader

stateEventStoreReader :: forall event (m :: Type -> Type). MonadState (EventMap event) m => VersionedEventStoreReader m event Source #

Specialized version of embeddedStateEventStoreReader that only contains an EventMap in the state.

stateEventStoreWriter :: forall event (m :: Type -> Type). MonadState (EventMap event) m => VersionedEventStoreWriter m event Source #

Specialized version of embeddedStateEventStoreWriter that only contains an EventMap in the state.

stateGlobalEventStoreReader :: forall event (m :: Type -> Type). MonadState (EventMap event) m => GlobalEventStoreReader m event Source #

embeddedStateEventStoreReader :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> VersionedEventStoreReader m event Source #

An EventStore that runs on some MonadState that contains an EventMap. This is useful if you want to include other state in your MonadState.

embeddedStateEventStoreWriter :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> (s -> EventMap event -> s) -> VersionedEventStoreWriter m event Source #

embeddedStateGlobalEventStoreReader :: forall s (m :: Type -> Type) event. MonadState s m => (s -> EventMap event) -> GlobalEventStoreReader m event Source #

Analogous to embeddedStateEventStore for a GlobalStreamEventStore.

data EventMap event Source #

Internal data structure used for the in-memory event stores.

Instances

Instances details

Show event => Show (EventMap event) Source #
Instance details Defined in Eventium.Store.Memory Methods showsPrec :: Int -> EventMap event -> ShowS # show :: EventMap event -> String # showList :: [EventMap event] -> ShowS #

emptyEventMap :: EventMap event Source #

What it says on the tin, an initialized empty EventMap

eventMapTVar :: IO (TVar (EventMap event)) Source #

Initialize an EventMap in a TVar

module Eventium.Store.Class