/*
* OptionValueController.java
*
* Created on 4 May 2007, 19:56
*
*/
package org.spw.controller;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.NoResultException;
import javax.persistence.Persistence;
import javax.persistence.Query;
import org.spw.model.OptionValue;
import org.spw.model.OptionValuePK;
/**
* Manage the generic options.
* Implement a CRUD controller.
* @author PSe
*/
public class OptionValueController {
private static EntityManagerFactory emf = Persistence.createEntityManagerFactory("VolunteerPU");
public static final String OFFICES = "Offices";
public static final String PARTNERSHIPS = "Partnerships";
public static final String WEBSITE_TYPES = "Website types";
public static final String EVENT_TYPES = "Event types";
public static final String EXPO_STALL = "Expo/Stall";
public static final String HOW_HEARD = "How heard";
public static final String TITLES = "Titles";
public static final String CONTRACT_TYPES = "Contract types";
/** Creates a new instance of OptionValueController */
public OptionValueController() {
}
/**
* Retrieve all the options
* @return List of all option value objects
*/
public List<OptionValue> getOptionValues() {
EntityManager em = emf.createEntityManager();
List<OptionValue> result = null;
try {
Query query = em.createNamedQuery("OptionValue.findAll");
result = query.getResultList();
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error Query all OptionValue", e);
} finally {
em.close();
}
return result;
}
/**
* Retrieve only the values of one option, find by name.
* @param option The option selected
* @return List of all values for this option.
*/
public List<OptionValue> getOptionValueByName(String option) {
EntityManager em = emf.createEntityManager();
List<OptionValue> retValue = null;
try {
Query query = em.createNamedQuery("OptionValue.findByName");
query.setParameter("name", option);
retValue = query.getResultList();
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error reading " + option, e);
} finally {
em.close();
}
return retValue;
}
/**
* Retrieve the exact value option with its key.
* @param option The coption
* @param key key of the option
* @return The corresponding object
*/
public OptionValue getOptionValueByLabel(String option, String key) {
EntityManager em = emf.createEntityManager();
OptionValue retValue = null;
try {
Query query = em.createNamedQuery("OptionValue.findByLabel");
query.setParameter("name", option);
query.setParameter("label", key);
retValue = (OptionValue) query.getSingleResult();
} catch (NoResultException e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.FINEST, "Not found " + key, e);
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error reading " + key, e);
} finally {
em.close();
}
return retValue;
}
public void create(OptionValue object) {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
try {
em.persist(object);
em.getTransaction().commit();
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error creating " + object, e);
if (em.getTransaction().isActive())
em.getTransaction().rollback();
} finally {
em.close();
}
}
public OptionValue read(OptionValuePK key) {
EntityManager em = emf.createEntityManager();
OptionValue retValue = null;
try {
retValue = em.find(OptionValue.class, key);
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error reading " + key, e);
} finally {
em.close();
}
return retValue;
}
public OptionValue update(OptionValue object) {
OptionValue result = null;
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
try {
result = em.merge(object);
em.getTransaction().commit();
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error updating " + object, e);
if (em.getTransaction().isActive())
em.getTransaction().rollback();
} finally {
em.close();
}
return result;
}
public void delete(OptionValue object) {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
try {
OptionValuePK pk = new OptionValuePK(object.getOptionName(),
object.getOptionOrder());
OptionValue entity = em.find(OptionValue.class, pk);
em.remove(entity);
em.getTransaction().commit();
} catch (Exception e) {
Logger.getLogger(OptionValueController.class.getName()).log(Level.SEVERE, "Error deleting " + object, e);
if (em.getTransaction().isActive())
em.getTransaction().rollback();
} finally {
em.close();
}
}
}