}
public void createData() {
EmbeddingOwnerEntity owner = new EmbeddingOwnerEntity();
for (int i = 0; i < SIZE; i++) {
EmbeddedEntity member = new EmbeddedEntity();
member.setMarker("Member-" + i);
owner.addMember(member);
}
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
em.persist(owner);