Using related JPA entities without loading them

In case you need a referenced object but don't want to load it from the database.

em.getReference(Account.class, accountId)

getReference allows you to get an instance from the EntityManager, whose state may be lazily fetched, but is not loaded from the database right away.

Thx to https://stackoverflow.com/questions/12828919/how-do-i-save-an-entity-with-foreign-key-without-loading-the-related-entity-in-j



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