Answer by Reguel Wermelinger

Reguel Wermelinger — Fri, 22 Apr 2016 11:41:42 -0400

You can set the relation if you assign appl to eduction and then persist em. You may have to persist them within a single transaction.

Education.setAppl(Application)

I've created a similar datastructure and a demo project here: simpleJpa_51.iar

package ch.ivyteam.demo;

import javax.persistence.EntityManager;

import simpleJpa.Person;
import simpleJpa.Phone;
import ch.ivyteam.ivy.environment.Ivy;
import ch.ivyteam.ivy.process.data.persistence.IIvyEntityManager;

public class PersonDao {

    public static void writeDemoFixture()
    {
        Person rew = new Person();
        rew.setFirstname("Reguel");
        rew.setLastname("Wermelinger");

        Phone work = new Phone();
        work.setNumber("079 123 456");
        work.setType("work");
        work.setPerson(rew);

        Phone home = new Phone();
        home.setNumber("041 123 455");
        home.setType("home");
        home.setPerson(rew);

        persist(work, home, rew);
    }

    private static void persist(Object... objects)
    {
        IIvyEntityManager ivyEntityManager = Ivy.persistence().get("memory");
        EntityManager em = ivyEntityManager.createEntityManager();
        try{
            em.getTransaction().begin();
            for(Object obj : objects)
            {
                em.persist(obj);
            }
            em.getTransaction().commit();
        }
        finally
        {
            em.close();
        }
    }
}

Answers to: How can I add a List to a database

Answer by Reguel Wermelinger