ehu

package
v0.0.0-...-4ca8788 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 6, 2023 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrAggregateDeleted = errors.New("the aggregate has already been deleted")
View Source 
var ErrCouldNotClearDB = errors.New("could not clear database")
View Source 
var ErrCouldNotLoadAggregate = errors.New("could not load aggregate")
View Source 
var ErrCouldNotMarshalEvent = errors.New("could not marshal dbEvent")
View Source 
var ErrCouldNotSaveAggregate = errors.New("could not save aggregate")
View Source 
var ErrCouldNotUnmarshalEvent = errors.New("could not unmarshal dbEvent")

Functions

func CommandHandlerNotImplemented 

func CommandHandlerNotImplemented(commandType eventhorizon.CommandType) error

func ConvertToCommandTypes 

func ConvertToCommandTypes(commands []enum.Literal) []eventhorizon.CommandType

func ConvertToEventTypes 

func ConvertToEventTypes(events []enum.Literal) []eventhorizon.EventType

func EntityAlreadyExists 

func EntityAlreadyExists(entityId uuid.UUID, aggregateType eventhorizon.AggregateType) error

func EntityChildIdNotDefined 

func EntityChildIdNotDefined(entityId uuid.UUID, aggregateType eventhorizon.AggregateType, childType string) error

func EntityChildNotExists 

func EntityChildNotExists(entityId uuid.UUID, aggregateType eventhorizon.AggregateType, childId uuid.UUID, childType string) error

func EntityNotExists 

func EntityNotExists(entityId uuid.UUID, aggregateType eventhorizon.AggregateType) error

func EventHandlerNotImplemented 

func EventHandlerNotImplemented(eventType eventhorizon.EventType) error

func IdNotDefined 

func IdNotDefined(currentId uuid.UUID, aggregateType eventhorizon.AggregateType) error

func IdsDismatch 

func IdsDismatch(entityId uuid.UUID, currentId uuid.UUID, aggregateType eventhorizon.AggregateType) error

func NewErrCouldNotLoadAggregate 

func NewErrCouldNotLoadAggregate(_ context.Context, err error) error

func NewErrCouldNotMarshalEvent 

func NewErrCouldNotMarshalEvent(_ context.Context, err error) error

func NewErrCouldNotSaveAggregate 

func NewErrCouldNotSaveAggregate(_ context.Context, err error) error

func NewErrCouldNotUnmarshalEvent 

func NewErrCouldNotUnmarshalEvent(_ context.Context, err error) error

func NewErrIncorrectEventVersion 

func NewErrIncorrectEventVersion(_ context.Context) error

func QueryNotImplemented 

func QueryNotImplemented(queryName string) error

func ValidateIdsMatch 

func ValidateIdsMatch(entityId uuid.UUID, currentId uuid.UUID, aggregateType eventhorizon.AggregateType) (ret error)

func ValidateNewId 

func ValidateNewId(entityId uuid.UUID, currentId uuid.UUID, aggregateType eventhorizon.AggregateType) (ret error)

Types

type AggregateEngine 

type AggregateEngine struct {
	*Middleware

	AggregateType    eventhorizon.AggregateType
	AggregateFactory func(id uuid.UUID) eventhorizon.Aggregate
	EntityFactory    func() eventhorizon.Entity

	Commands []eventhorizon.CommandType
	Events   []eventhorizon.EventType
	// contains filtered or unexported fields
}

func NewAggregateEngine 

func NewAggregateEngine(middelware *Middleware,
	aggregateType eventhorizon.AggregateType,
	aggregateFactory func(id uuid.UUID) eventhorizon.Aggregate,
	entityFactory func() eventhorizon.Entity,
	commands []enum.Literal, events []enum.Literal) (ret *AggregateEngine)

func (*AggregateEngine) RegisterForEvent 

func (o *AggregateEngine) RegisterForEvent(handler eventhorizon.EventHandler, event enum.Literal) (err error)

func (*AggregateEngine) RegisterForEvents 

func (o *AggregateEngine) RegisterForEvents(handler eventhorizon.EventHandler, events []eventhorizon.EventType) (err error)

func (*AggregateEngine) RegisterForEventsAll 

func (o *AggregateEngine) RegisterForEventsAll(handler eventhorizon.EventHandler) (err error)

func (*AggregateEngine) RegisterProjector 

func (o *AggregateEngine) RegisterProjector(projectorType string, listener DelegateEventHandler) (ret *ProjectorEventHandler, err error)

func (*AggregateEngine) RegisterSagaForEvents 

func (o *AggregateEngine) RegisterSagaForEvents(aSaga saga.Saga, events []eventhorizon.EventType) (err error)

func (*AggregateEngine) Setup 

func (o *AggregateEngine) Setup() (err error)

type AggregateStoreEvent 

type AggregateStoreEvent interface {
	AppendEvent(eventhorizon.EventType, eventhorizon.EventData, time.Time, ...eventhorizon.EventOption) eventhorizon.Event
}

type CommandError 

type CommandError struct {
	Err    error
	Cmd    eh.Command
	Entity eh.Entity
}

func (CommandError) Cause 

func (o CommandError) Cause() error

func (CommandError) Error 

func (o CommandError) Error() string

type DelegateCommandHandler 

type DelegateCommandHandler interface {
	CommandTypes() []eventhorizon.CommandType
	Execute(cmd eventhorizon.Command, entity eventhorizon.Entity, store AggregateStoreEvent) error
}

type DelegateEventHandler 

type DelegateEventHandler interface {
	EventTypes() []eventhorizon.EventType
	Apply(event eventhorizon.Event, entity eventhorizon.Entity) error
}

type Entity 

type Entity interface {
	EntityID() uuid.UUID
	Deleted() *time.Time
}

type EventStoreDelegate 

type EventStoreDelegate struct {
	Factory func() (ret eventhorizon.EventStore, err error)
	// contains filtered or unexported fields
}

func (*EventStoreDelegate) Close 

func (o *EventStoreDelegate) Close() (err error)

func (*EventStoreDelegate) Load 

func (o *EventStoreDelegate) Load(ctx context.Context, id uuid.UUID) (ret []eventhorizon.Event, err error)

func (*EventStoreDelegate) LoadFrom 

func (o *EventStoreDelegate) LoadFrom(ctx context.Context, id uuid.UUID, version int) (
	ret []eventhorizon.Event, err error)

LoadFrom loads all events from version for the aggregate id from the store.

func (*EventStoreDelegate) Save 

func (o *EventStoreDelegate) Save(ctx context.Context, events []eventhorizon.Event, originalVersion int) (err error)

type HttpCommandHandler 

type HttpCommandHandler struct {
	Context    context.Context
	CommandBus eventhorizon.CommandHandler
}

func NewHttpCommandHandlerFull 

func NewHttpCommandHandlerFull(
	context context.Context, commandBus eventhorizon.CommandHandler) (ret *HttpCommandHandler)

func (*HttpCommandHandler) HandleCommand 

func (o *HttpCommandHandler) HandleCommand(command eventhorizon.Command, w http.ResponseWriter, r *http.Request)

type HttpQueryHandler 

type HttpQueryHandler struct {
}

func NewHttpQueryHandlerFull 

func NewHttpQueryHandlerFull() (ret *HttpQueryHandler)

func (*HttpQueryHandler) HandleResult 

func (o *HttpQueryHandler) HandleResult(
	ret interface{}, err error, method string, w http.ResponseWriter, r *http.Request)

type Middleware 

type Middleware struct {
	EventStore eventhorizon.EventStore
	EventBus   eventhorizon.EventBus
	CommandBus *bus.CommandHandler
	Repos      func(string, func() (ret eventhorizon.Entity)) (ret eventhorizon.ReadWriteRepo, err error)
}

type ProjectorEventHandler 

type ProjectorEventHandler struct {
	DelegateEventHandler
	Repo eventhorizon.ReadRepo
	// contains filtered or unexported fields
}

func NewProjector 

func NewProjector(projectorType string, eventHandler DelegateEventHandler, repo eventhorizon.ReadRepo) (ret *ProjectorEventHandler)

func (*ProjectorEventHandler) Project 

func (o *ProjectorEventHandler) Project(
	ctx context.Context, event eventhorizon.Event, entity eventhorizon.Entity) (ret eventhorizon.Entity, err error)

func (*ProjectorEventHandler) ProjectorType 

func (o *ProjectorEventHandler) ProjectorType() projector.Type

Source Files

View all Source files

Directories

Path Synopsis
app
filestore
memory
mongo

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