Stack Overflow
Stack Overflow

Questions tagged [domain-events]

130 questions
2
votes
1 answer

Domain event storage in SQL... use JSON serialization?

I'm looking at refactoring an existing code-base before we let it loose in the wild with our first customer, and I really don't like the current domain event storage structure and I was trying to come up with a good way to store the many & very…
BreakerOfStones
  • 529
  • 5
  • 18
2
votes
1 answer

Transitioning a referenced aggregate root to another aggregate root

My system has the language of a "Contact" which is a sort of "ghost user" that we have some information on - it's validation rules are slim and it's state is largely contact information. We also have a concept of a "User" which is a fully-vetted and…
Chris Tickner
  • 2,008
  • 2
  • 20
  • 24
2
votes
3 answers

What if domain event failed?

I am new to DDD. Now I was looking at the domain event. I am not sure if I understand this domain event correctly, but I am just thinking what will happen if domain event published failed? I have a case here. When a buyer order something from my…
Leonz
  • 141
  • 12
2
votes
1 answer

Asynchronous communication between ACL and BoundedContext

We are following DDD for a project... We need to access a legacy application from a bounded context . So we create an Anti corruption layer.. However we have a problem... The method that we are executing in the ACL is asynchronous and returns the…
Sabarish Sathasivan
  • 1,196
  • 2
  • 19
  • 42
2
votes
1 answer

How is ApplicationEvent different from DomainEvent?

In the DDD Sample, Cargo Tracking application, there are "ApplicationEvents" and DomainEvents. ApplicationEvents examples: "cargoHasArrived", "cargoWasMishandled" DomainEvent example: "HandlingEvent.LOAD", "HandlingEvent.RECEIVE",…
Jason
  • 2,006
  • 3
  • 21
  • 36
2
votes
1 answer

How to make Aggregate Root method only accessible for a Domain Event and nothing else.

I have two aggregate roots... AR1 and AR2. AR1 holds a collection of references (IDs) to instances of AR2. Inside one of the AR1 methods a domain event is raised to update the collection of AR2 instances. The domain event is raised after the…
Cool Breeze
  • 1,289
  • 11
  • 34
2
votes
1 answer

Raising Domain Events For Multiple Subscribers

I am stating to look into the Domain Events pattern and have read a lot of resources on the subject but I cannot find a good way of implementing for our requirements. Basically we have a Service/Domain layer which wraps the repository layer for…
user351711
  • 3,171
  • 5
  • 39
  • 74
2
votes
1 answer

Domain Events and Commands in Distributed System (DDD)

Lets say i have distributed architecture (client-server). On client side there is ServerEntity class, on the client side its ClientEntity class. I want ClientEntity simply to request some data from ServerEntity. I started learning DDD approach…
garf
  • 53
  • 1
  • 5
1
vote
1 answer

Publishing one generic fail event and attaching data to it or publish multiple specific fail event

So we have a scenario where we are creating credit cards. We have CreateCardConsumer that internally implements a strategy that decides which credit card provider API will be used (currently, we have two, let's call them, Provider1 and…
emirkljucanin
  • 804
  • 1
  • 9
  • 20
1
vote
0 answers

C# Casting to Interface Type with DomainEvents

I am working on handling domain events on save by adding them to a List on our Entities. public abstract class Entity { public List DomainEvents; // code truncated } my interface for IDomainEvent and Handlers are as…
Taylor Hall
  • 11
  • 2
1
vote
1 answer

How to propagate consequent changes inside the same Domain entity

In a Domain Driven Design implementation with CQRS and Domain events, when a Command's handler performs a "change" on a Domain entity, and this "change" also causes more "changes" inside the same entity, should all these "changes" be performed by…
thomas_p
  • 97
  • 1
  • 14
1
vote
1 answer

Event sourcing and Domain Event

What is Event sourcing and what is Domain Event. I read both the articles and I am not be able to get it properly. So, please describe it in easy words. And what is the difference between them? Are domain events and event driven are same?
ARJUN PATEL
  • 67
  • 1
  • 1
  • 5
1
vote
2 answers

DDD: Handle domain events directly in aggregate?

Our subdomain has two primary aggregate types: Locations and pallets. Each location keeps track of how many pallets it holds, and each pallet can only be placed on one location at a time. Assume that there are many instances of each type and their…
domin
  • 1,192
  • 1
  • 7
  • 28
1
vote
1 answer

Should operations on aggregate root that cause changes in child entities raise the child domain events?

Let's say that we have an Entity (the Root) with a property identifier, and another Entity (a child / local entity to Root) with a property name, with the rule that the Child's name must start with the Root identifier. There is a changeIdentifier…
technicated
  • 169
  • 1
  • 9
1
vote
1 answer

How should I load historical events from another service?

I have a User Microservice, that publishes events when a user is created, modified, or deleted. In addition, I have a Calendar Microservice that needs the user data. The Calendar service, subscribes to the user events and keeps a read only copy of…
Don Chambers
  • 3,798
  • 9
  • 33
  • 74
1 2 3
…
8 9