package fi.otavanopisto.pyramus.dao.system;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import fi.otavanopisto.pyramus.dao.PyramusEntityDAO;
import fi.otavanopisto.pyramus.domainmodel.system.Setting;
import fi.otavanopisto.pyramus.domainmodel.system.SettingKey;
import fi.otavanopisto.pyramus.domainmodel.system.Setting_;
@Stateless
public class SettingDAO extends PyramusEntityDAO<Setting> {
public Setting create(SettingKey settingKey, String value) {
EntityManager entityManager = getEntityManager();
Setting setting = new Setting();
setting.setKey(settingKey);
setting.setValue(value);
entityManager.persist(setting);
return setting;
}
public Setting findByKey(SettingKey key) {
EntityManager entityManager = getEntityManager();
CriteriaBuilder criteriaBuilder = entityManager.getCriteriaBuilder();
CriteriaQuery<Setting> criteria = criteriaBuilder.createQuery(Setting.class);
Root<Setting> root = criteria.from(Setting.class);
criteria.select(root);
criteria.where(
criteriaBuilder.equal(root.get(Setting_.key), key)
);
return getSingleResult(entityManager.createQuery(criteria));
}
public void update(Setting setting, SettingKey settingKey, String value) {
EntityManager entityManager = getEntityManager();
setting.setKey(settingKey);
setting.setValue(value);
entityManager.persist(setting);
}
@Override
public void delete(Setting setting) {
super.delete(setting);
}
}