How to persist a lot of entities (JPA)

Question

I need to process a CSV file and for each record (line) persist an entity. Right now, I do it this way:

while ((line = reader.readNext()) != null) {
    Enti         


        

Answer 1

I think one common way to do this is with transactions. If you begin a new transaction and then persist a large number of objects, they won't actually be inserted into the DB until you commit the transaction. This can gain you some efficiencies if you have a large number of items to commit.

Check out EntityManager.getTransaction