Question

I need to the get lastest inserted ‘product’ in my database.
I’m using JPA (EclipseLink) to do that, something like :

public List<Product> search(String name){
  // return the lastest results with the maximum of 100 values
}

How can I do that ?
Thanks.

Answer 1

Search for the products with the given name, order the results by insertion date (a column that must be present in the Product entity) of by ID (if using a sequence number as ID), in descending order, and call setMaxResults(100) on the query to limit it to 100 results:

TypedQuery<Product> q = 
    em.createQuery("select p from Product p"
                   + " where p.name = :name"
                   + " order by p.insertionDate desc", Product.class);
q.setParameter("name", name);
q.setMaxResults(100);
return q.getResultList();