@Override
public boolean updateQuestionRevision(QuestionRevision revision) {
QuestionRevision lastRevision =
findQuestionRevision(revision.getCountry(), revision.getQuestion());
Long version = lastRevision.getVersion();
if (lastRevision.getVersion() <= revision.getVersion()) {
if (!questionRevisionDAO.remove(revision)) {
return false;
} else {
lastRevision.setVersion(version + 1);
questionRevisionDAO.merge(lastRevision);
return true;
}
}
return false;
}
@Override
public QuestionRevision findQuestionRevision(Country country, Question question) {
Search searchCriteria = new Search(QuestionRevision.class);
searchCriteria.addFilterEqual("country", country);
searchCriteria.addFilterEqual("question", question);
List<QuestionRevision> qr = questionRevisionDAO.search(searchCriteria);
if (qr.size() > 0) {
return qr.get(0);
}
return null;
}
@Override
public void insertQuestionRevision(QuestionRevision question) {
questionRevisionDAO.persist(question);
}