Software Architecture with C# 9 and .NET 5 - Second Edition by Gabriel Baptista Francesco Abbruzzese

Author:Gabriel Baptista, Francesco Abbruzzese
Language: eng
Format: epub
Tags: COM051310 - COMPUTERS / Programming Languages / C#, COM051240 - COMPUTERS / Software Development & Engineering / Systems Analysis & Design, COM051440 - COMPUTERS / Software Development & Engineering / Tools
Publisher: Packt
Published: 2020-12-23T10:12:11+00:00

Command handlers and domain events

To keep aggregates separated, usually, interactions with other aggregates and other Bounded Contexts are done through events. It is good practice to store all the events when they are created during the processing of each aggregate, instead of executing them immediately, in order to prevent event execution from interfering with the ongoing aggregate processing. This is easily achieved by adding the following code to the abstract Entity class defined in the Entities and value objects subsection of this chapter, as follows:

public List<IEventNotification> DomainEvents { get; private set; } public void AddDomainEvent(IEventNotification evt) { DomainEvents ??= new List<IEventNotification>(); DomainEvents.Add(evt); } public void RemoveDomainEvent(IEventNotification evt) { DomainEvents?.Remove(evt); }

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