* add state and callback pattern * add command and template-method pattern * add iterator pattern * add bridege and DI pattern * fix issue #1600 * add converter,proxy,visitor pattern * add caching,composite,delegation,dirty-flag,interpreter patterns * add dao and producer-consumer * add dto and provate class data pattern * fix #1646 png path problems * fix #1646 composite png path case problem * add abstract document pattern and version-number pattern * add ambassador pattern * add acyclic-visitor and api-gateway pattern * add abstract-factory pattern * add active-object pattern * add aggregator-microservices and arrange-act-assert pattern * update async-method-invocation pattern * add balking and business-delegate pattern * add bytecode and circuit-break pattern * update arrange/act/assert pattern problems * add csch pattern * add language code, correct pic path * #1805 update permalink Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com> Co-authored-by: Mike <admin@xiaod.info> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>
31 lines
1.1 KiB
Markdown
31 lines
1.1 KiB
Markdown
---
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layout: pattern
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title: Data Bus
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folder: data-bus
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permalink: /patterns/data-bus/
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categories: Architectural
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language: zh
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tags:
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- Decoupling
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---
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## 含义
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数据总线模式(译者:实际上,就是 Event-Bus 消息总线模式)允许在一个应用程序的组件之间收发消息/事件,而不需要这些组件相互感知,它们只需要知道所发送/接收的消息/事件的类型即可。
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## 类图
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## 适用场景
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可以在以下场景使用数据总线模式:
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* 你希望由你的组件自己决定要接收哪些信息/事件
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* 你希望实现多对多的通信
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* 你希望你的组件不需要感知彼此
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## 相关模式
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数据总线类似于以下设计模式:
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* 中介者模式(Mediator pattern),由数据总线成员自己决定是否要接受任何给定的消息。
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* 观察者模式(Observer pattern),但进一步支持了多对多的通信。
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* 发布/订阅模式(Publish/Subscribe pattern),但是数据总线将发布者和订阅者解耦。 |