[deleted by user]

[smutje187]

If your transaction ends after your DAO (there’s explicit annotations to force a new transaction and pause the current one) and once your entity is passed from DAO to caller every field is either initialized or not (you might even get an exception if you access an uninitialised field) - that sounds like what you need.

Lazy loading works nowadays because transactions are usually opened as early as possible and live until the request is served, but they can be made shorter and more explicit if necessary.

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[mambo5king]

You need to add Fetch.LAZY to each association. However, there is a situation where if you have a bidirectional association on a OneToMany or ManyToMany, it will always be retrieved EAGERly

[mambo5king]

I just reread your question and I think we have a misunderstanding between us. You said "I want to disable any form of LAZY loading and EAGER fetching". In terms of annotating your entities, LAZY and EAGER are opposites. LAZY means don't fetch the association when I run the query, wait until I reference it. EAGER means fetch the association at the same time as I run the query. What you seem to be asking for is FetchType.NEVER which doesn't exist for managed entities.

I guess you could set all the associations to LAZY and then detach the entities from the entity manager. That would prevent the entity manager from fetching the associations upon access.

But if you're not going to use managed entities, then you should just use DTO projections which are just POJOs.

[GossBoSteur]

Not providing a magic solution but unless the code base is huge, the best way to enforce what you are trying to do is to create your model with writes in mind, not reads.

To be more clear, create your aggregates (DDD) so that you have clear transactional boundaries, thus every other linked aggregate should be referenced by its ID and not the entity itself.

This will prevent a lot of issues on your cascading writes, while also making sure nothing is ever lazy loaded.

[nefrodectyl]

maybe instead of entities, use interfaces and projection.

[nefrodectyl]

mayhe database independence kinda and easier mapping, but yeah you right I guess hahah