embed2.setBasic("basic");
pc.getEmbedCollection().add(embed2);
OpenJPAEntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persistAll(new Object[]{ pc, pc2, pc3 });
em.getTransaction().commit();
Object pcId = em.getObjectId(pc);
Object pc2Id = em.getObjectId(pc2);
Object pc3Id = em.getObjectId(pc3);
em.close();