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Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
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Colin Douch shares battle-tested strategies for building and scaling self-hosted observability stacks. He explains how to effectively correlate metrics, structured logs, and distributed traces using open-source tooling like Prometheus, VictoriaMetrics, and Jaeger, while navigating the engineering trade-offs of avoiding SaaS vendor lock-in.
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By Daniel Curtis
This article is about engineering an offline-first app for low-end devices based on our experience in Nigeria and India. The interesting problems in this space are storage, quota, cold start, and failure-path design. Our approach applies to any product whose users are on constrained devices and intermittent connections, when the assumption they have a laptop and broadband access do not hold.
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The best practise is to use a services layer for dao operation ( for transactions and business logic ) . But i don't know your application I might be mistaken.
However i think you can inject your dao in the controller class and then set the result of dao's call in your command class. You can do this also before the page is called overriding the formBackingObject or referenceData methods of the controller.
* Excuse my bad English... i hope you'll understand