public void save() throws RegistryException{
EntityManager em = null;
try {
em = ResourceUtils.getEntityManager();
Experiment_Input existingInput = em.find(Experiment_Input.class, new Experiment_Input_PK(experimentResource.getExpID(), experimentKey));
em.close();
em = ResourceUtils.getEntityManager();
em.getTransaction().begin();
Experiment_Input exInput = new Experiment_Input();