public void Apply_PrivateApplyMethods_MethodsInvoked()
{
var entity = new TestEntity();
EventsApplier.Apply(new TestEntity.TestEntityEvent2(), entity);
entity.Calls.Should().Be(2);
}
public void Apply_NoMatchingMethod_ExceptionThrown()
{
var entity = new TestEntity();
Action action = () => EventsApplier.Apply(new TestEntity.TestEntityEvent3(), entity);
action.Should().Throw <SilverbackException>();
}
public void Apply_PublicApplyMethod_MethodInvoked()
{
var entity = new TestEntity();
EventsApplier.Apply(new TestEntity.TestEntityEvent1(), entity);
entity.Calls.Should().Be(1);
}
public void Apply_MultipleMatchingMethods_AllMethodsInvoked()
{
var entity = new TestEntity();
EventsApplier.Apply(new TestEntity.TestEntityEvent2(), entity);
entity.Calls.Should().Be(2);
}
public void Apply_SingleMatchingMethod_MethodInvoked()
{
var entity = new Person();
EventsApplier.Apply(new Person.NameChangedEvent {
NewName = "Silverback"
}, entity);
entity.Name.Should().Be("Silverback");
}
/// <summary>
/// Initializes a new instance of the <see cref="EventSourcingDomainEntity{TKey, TDomainEvent}" /> class
/// from the stored events.
/// </summary>
/// <param name="events">
/// The stored events to be re-applied to rebuild the entity state.
/// </param>
protected EventSourcingDomainEntity(IReadOnlyCollection <IEntityEvent> events)
{
Check.NotEmpty(events, nameof(events));
events = events.OrderBy(e => e.Timestamp).ThenBy(e => e.Sequence).ToList().AsReadOnly();
events.ForEach(e => EventsApplier.Apply(e, this, true));
_storedEvents = events.ToList();
ClearMessages();
}
/// <summary>
/// Adds the specified event and applies it to update the entity state.
/// </summary>
/// <param name="entityEvent">
/// The event to be added.
/// </param>
/// <returns>
/// The <see cref="IEntityEvent" /> that was added and applied.
/// </returns>
protected virtual IEntityEvent AddAndApplyEvent(IEntityEvent entityEvent)
{
Check.NotNull(entityEvent, nameof(entityEvent));
EventsApplier.Apply(entityEvent, this);
_newEvents ??= new List <IEntityEvent>();
_newEvents.Add(entityEvent);
if (entityEvent.Timestamp == default)
{
entityEvent.Timestamp = DateTime.UtcNow;
}
if (entityEvent.Sequence <= 0)
{
entityEvent.Sequence = (_storedEvents?.Count ?? 0) + _newEvents.Count;
}
return(entityEvent);
}
