ddd

type Aggregate ¶

type Aggregate[T any, ID any] interface {
	Root() Entity[T, ID]
}

type DomainEvent ¶

type DomainEvent[T any, ID any] interface {
	SameEventAs(other T) bool
	ID() ID
	Kind() string
	When() time.Time
}

DomainEvent is something that is unique, but does not have a lifecycle. The identity may be explicit, for example the sequence number of a payment, or it could be derived from various aspects of the event such as where, when and what has happened.

type Entity ¶

type Entity[T any, ID any] interface {
	SameIdentityAs(other T) bool
	Identity() ID
}

Entity as explained in the DDD book. Entities compare by identity, not by attributes.

type EventDescriptor ¶ added in v1.2.1

type EventDescriptor struct {
	ID         int64
	Body       string
	OccurredAt time.Time
	Kind       string
}

func EventDescriptorFromEvent[T any, ID any](e DomainEvent[T, ID]) *EventDescriptor

func NewEventDescriptor(body string, occurredAt time.Time, kind string) *EventDescriptor

type ValueObject ¶

type ValueObject[T any] interface {
	SameValueAs(other T) bool
}

ValueObject as described in the DDD book. Value objects compare by the values of their attributes, they don't have an identity.