发布与订阅 publish-subscribe
基本操作
5. Entity Use Cases
?? ?1. Discover Features
?? ?2. Discover Nodes
?? ?3. Discover Node Information
?? ?4. Discover Node Metadata
?? ?5. Discover Items For a Node
?? ?6. Retrieve Subscriptions
?? ?7. Retrieve Affiliations
6. Subscriber Use Cases
?? ?1. Subscribe to a Node
?? ?2. Unsubscribe from a Node
?? ?3. Configure Subscription Options
?? ?4. Request Default Subscription Configuration Options
?? ?5. Retrieve Items from a Node
7. Publisher Use Cases
?? ?1. Publish an Item to a Node
?? ?2. Delete an Item from Node
8. Owner User Cases
?? ?1. Create a Node
?? ?2. Configrue a Node
?? ?3. Request Default Node Configration Options
?? ?4. Delete a Node
?? ?5. Purge All Node Items
?? ?6. Manage Subscription Requests
?? ?7. Process Pending Subscription Requests
?? ?8. Manage Subscriptions
?? ?9. Modify Affiliations
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