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sjvans
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Apr 16, 2026
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| ### Callbacks (SAGA Patterns) { #callbacks } |
sjvans
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Apr 16, 2026
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general issue: "queued" vs "outboxed" and "unqueued" vs "unboxed" in Node.js/ Java
sjvans
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Apr 16, 2026
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| ### Service API { #service-api } |
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more pseudo code style
sjvans
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Apr 16, 2026
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| | `srv.emit(event, data)` | Emit a fire-and-forget event message | | ||
| | `srv.send(event, data)` | Send a request (return value discarded for queued services) | | ||
| | `srv.run(query)` | Run a CQL query (return value discarded for queued services) | |
sjvans
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Apr 16, 2026
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| ### Background Tasks { #background-tasks } |
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java variant missing
sjvans
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Apr 16, 2026
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| ### Queueing by Configuration { #by-configuration } |
sjvans
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Apr 16, 2026
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| ### Auto-Outboxed Services { #auto-outboxed } |
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- "outboxed by default"
- plus: inboxed by default (which nothing is, but should maybe be mentioned here as well)
sjvans
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Apr 16, 2026
| Because the event message is written within the same database transaction as your business data, a rollback of the transaction also removes the event message. | ||
| No event is ever dispatched for a transaction that didn't commit. | ||
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| ### Guaranteed Order { #guaranteed-order } |
sjvans
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Apr 16, 2026
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| ### Error Handling { #errors } |
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- Node.js vs Java not prominent enough
- add example in context of existing service, such as intercept audit logging
- Java doesn't yet have concept of unrecoverable errors that become dead letters (pr currently pending review)
sjvans
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Apr 16, 2026
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| ## Deferred Principal Propagation { #principal-propagation } |
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remove and re-add once we know how it works
sjvans
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Apr 16, 2026
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| ## Configuration |
sjvans
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Apr 16, 2026
| | `ordered` | `true` | Process entries in submission order | | ||
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| ### In-Memory Queue |
sjvans
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Apr 16, 2026
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| ## Manual Processing { #flush } |
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remove? or add java? what's the use case for stakeholders? flushing is automatic...
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