Safe Haskell	Safe-Inferred
Language	GHC2021

Hydra.HeadLogic.StateEvent

Contents

State change events as used by Hydra.Node

Synopsis

data StateEvent tx = StateEvent {
- eventId :: EventId
- stateChanged :: StateChanged tx
- time :: UTCTime
}
mkCheckpoint :: NodeState tx -> EventId -> UTCTime -> StateEvent tx

State change events as used by Hydra.Node

data StateEvent tx Source #

A state change event with an event id that is the common entity to be loaded from an EventSource and sent to EventSinks.

Constructors

StateEvent
Fields eventId :: EventId stateChanged :: StateChanged tx time :: UTCTime

Instances

Instances details

IsChainState tx => FromJSON (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods parseJSON :: Value -> Parser (StateEvent tx) parseJSONList :: Value -> Parser [StateEvent tx] omittedField :: Maybe (StateEvent tx)
IsChainState tx => ToJSON (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods toJSON :: StateEvent tx -> Value toEncoding :: StateEvent tx -> Encoding toJSONList :: [StateEvent tx] -> Value toEncodingList :: [StateEvent tx] -> Encoding omitField :: StateEvent tx -> Bool
Generic (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Associated Types type Rep (StateEvent tx) :: Type -> Type Source # Methods from :: StateEvent tx -> Rep (StateEvent tx) x Source # to :: Rep (StateEvent tx) x -> StateEvent tx Source #
IsChainState tx => Show (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods showsPrec :: Int -> StateEvent tx -> ShowS Source # show :: StateEvent tx -> String Source # showList :: [StateEvent tx] -> ShowS Source #
IsChainState tx => FromCBOR (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods fromCBOR :: Decoder s (StateEvent tx) label :: Proxy (StateEvent tx) -> Text
IsChainState tx => ToCBOR (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods toCBOR :: StateEvent tx -> Encoding encodedSizeExpr :: (forall t. ToCBOR t => Proxy t -> Size) -> Proxy (StateEvent tx) -> Size encodedListSizeExpr :: (forall t. ToCBOR t => Proxy t -> Size) -> Proxy [StateEvent tx] -> Size
IsChainState tx => Eq (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods (==) :: StateEvent tx -> StateEvent tx -> Bool Source # (/=) :: StateEvent tx -> StateEvent tx -> Bool Source #
HasEventId (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent Methods getEventId :: StateEvent tx -> EventId Source #
type Rep (StateEvent tx) Source #
Instance details Defined in Hydra.HeadLogic.StateEvent type Rep (StateEvent tx) = D1 ('MetaData "StateEvent" "Hydra.HeadLogic.StateEvent" "hydra-node-2.3.0-1cgalYNmLJQC1YXlYVq7mp" 'False) (C1 ('MetaCons "StateEvent" 'PrefixI 'True) (S1 ('MetaSel ('Just "eventId") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 EventId) :: (S1 ('MetaSel ('Just "stateChanged") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (StateChanged tx)) :: S1 ('MetaSel ('Just "time") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 UTCTime))))

mkCheckpoint :: NodeState tx -> EventId -> UTCTime -> StateEvent tx Source #