【消息中间件Solace】Solace 中的基本概念

预读：

https://docs.solace.com/PubSub-Basics/Message-What-Is.htm

https://docs.solace.com/PubSub-Basics/Core-Concepts.htm

Core Concepts

In this section we'll discuss several concepts that form the foundation of event messaging technology and Solace PubSub+ event brokers:

• What is a Message? 

　　

• What is Messaging?

　　

• Message Exchange Patterns

　　publish-subscribe messaging

　　

• Message VPNs

　　

• Clients

　　

• Understanding Topics
  • 　　　　Direct Messages
  • 　　　　Guaranteed Message （It keeps a copy of the message until successful delivery to all clients and downstream event brokers has been verified）
    • 　　　　Possible Message Delivery Mode Changes on Topic Match

      Delivery Mode of Published Message	Received by Endpoint as ...
      Direct	Non-Persistent
      Non-Persistent	Non-Persistent
      Persistent	Persistent

• Endpoints and Queues