event

type AggID = string

type Aggregate interface {
	ID() string
	Type() string
	Version() int
}

type Event struct {
	// contains filtered or unexported fields
}

type ID = string

type IEvent interface {
	// ID returns the id of the event.
	ID() ID
	// Name returns the name of the event.
	Name() string
	// Time returns the time of the event.
	Time() time.Time
	// Data returns the event data.
	Data() interface{}
	// Aggregate returns the id, name and version of the aggregate that the
	// event belongs to. aggregate should return zero values if the event is not
	// an aggregate event.
	Aggregate() (id string, name string, version int)
}

type Metadata struct {
	ID               ID
	Name             string
	Time             time.Time
	AggregateName    string
	AggregateID      AggID
	AggregateVersion int
	Data             interface{}
}

type Option func(*Metadata)