throw new UnsupportedOperationException();
}
public void save() {
EntityManager em = ResourceUtils.getEntityManager();
Gram_Data existingGramData = em.find(Gram_Data.class, new Gram_DataPK(workflowDataResource.getWorkflowInstanceID(), nodeID));
em.close();
em = ResourceUtils.getEntityManager();
em.getTransaction().begin();
Gram_Data gramData = new Gram_Data();