V2EX domain event

Domain Event

定义 Definition

在软件工程(尤其是领域驱动设计 DDD)中,“domain event”指领域中已经发生且对业务有意义的事件,用来记录并传播“某件重要事情发生了”(例如:订单已支付、账户已冻结)。它常用于解耦系统模块、触发后续流程、实现异步处理等。

发音 Pronunciation

/domen vnt/

例句 Examples

The payment succeeded, so we published a domain event.
支付成功后,我们发布了一个领域事件。

After the order was confirmed, the system emitted a domain event that triggered inventory updates and sent a notification to the customer.
订单确认后,系统发出一个领域事件,触发库存更新并向客户发送通知。

词源 Etymology

“Domain”源自拉丁语 dominium(意为“所有权、统治范围”),后来引申为“领域、范围”;“Event”源自拉丁语 eventus(意为“发生的事、结果”)。合在一起在现代软件语境中表示“业务领域里发生的一件关键事情”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Eric Evans, Domain-Driven Design: Tackling Complexity in the Heart of Software(常讨论领域事件作为建模与解耦的手段)
  • Vaughn Vernon, Implementing Domain-Driven Design(系统性介绍领域事件的设计与发布/订阅实践)
  • Vaughn Vernon, Domain-Driven Design Distilled(以更简明方式讲解包括领域事件在内的核心概念)
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