Is it acceptable to remove domain events?

Question

For example, I have the following code:

public void Update(string firstName,
        string? middleName,
        string lastName,
        string emailAddress,
        string phoneNumber,
        DateTime birthDate,
        Gender gender,
        string comment,
        string? avatarUrl = null)
{
    SetFullName(firstName, lastName, middleName);
    SetEmail(emailAddress);
    SetPhoneNumber(phoneNumber);
    SetBirthDate(birthDate);
    SetGender(gender);
    if (avatarUrl is not null)
    {
        SetAvatarUrl(avatarUrl);
    }

    SetComment(comment);

    AddPersonUpdatedDomainEvent();
}

At the end of the update, I add a domain event for the update, but anyone can call methods like SetFullName, SetEmail, SetPhoneNumber separately, so I would need to handle domain events there as well. However, this creates a problem because calling one complete update results in 8 domain events being added, which doesn't seem right. Ultimately, I only need to handle one "update" event.

Is it acceptable to remove/update previously added update events if they already exist?

Answer 1

There are multiple ways to achieve this:

• You can create separate commands and update all part individually without using single update method.
• You can check if info is changes for specific argument and fire event if is changed.

My preference is to have more granular events for more control and I will probably not fire the general "AddPersonUpdatedDomainEvent" event, but as I say that may vary from application to application.

In summary I think there is strict rules how to do this, but it may depend of application needs.