/**
* For copyright information see the LICENSE document.
*/
package gwlpr.database.jpa;
import java.io.Serializable;
import javax.persistence.Query;
import javax.persistence.EntityNotFoundException;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Root;
import gwlpr.database.entities.Weapon;
import gwlpr.database.entities.Character;
import gwlpr.database.entities.Weaponset;
import gwlpr.database.entities.WeaponsetPK;
import gwlpr.database.jpa.exceptions.NonexistentEntityException;
import gwlpr.database.jpa.exceptions.PreexistingEntityException;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
/**
*
* @author _rusty
*/
public class WeaponsetJpaController implements Serializable
{
public WeaponsetJpaController(EntityManagerFactory emf) {
this.emf = emf;
}
private EntityManagerFactory emf = null;
public EntityManager getEntityManager() {
return emf.createEntityManager();
}
public void create(Weaponset weaponset) throws PreexistingEntityException, Exception {
if (weaponset.getWeaponsetPK() == null) {
weaponset.setWeaponsetPK(new WeaponsetPK());
}
weaponset.getWeaponsetPK().setCharacterID(weaponset.getCharacter().getId());
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Weapon weapons = weaponset.getWeapons();
if (weapons != null) {
weapons = em.getReference(weapons.getClass(), weapons.getId());
weaponset.setWeapons(weapons);
}
Character character = weaponset.getCharacter();
if (character != null) {
character = em.getReference(character.getClass(), character.getId());
weaponset.setCharacter(character);
}
em.persist(weaponset);
if (weapons != null) {
weapons.getWeaponsetCollection().add(weaponset);
weapons = em.merge(weapons);
}
if (character != null) {
character.getWeaponsetCollection().add(weaponset);
character = em.merge(character);
}
em.getTransaction().commit();
} catch (Exception ex) {
if (findWeaponset(weaponset.getWeaponsetPK()) != null) {
throw new PreexistingEntityException("Weaponset " + weaponset + " already exists.", ex);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public void edit(Weaponset weaponset) throws NonexistentEntityException, Exception {
weaponset.getWeaponsetPK().setCharacterID(weaponset.getCharacter().getId());
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Weaponset persistentWeaponset = em.find(Weaponset.class, weaponset.getWeaponsetPK());
Weapon weaponsOld = persistentWeaponset.getWeapons();
Weapon weaponsNew = weaponset.getWeapons();
Character characterOld = persistentWeaponset.getCharacter();
Character characterNew = weaponset.getCharacter();
if (weaponsNew != null) {
weaponsNew = em.getReference(weaponsNew.getClass(), weaponsNew.getId());
weaponset.setWeapons(weaponsNew);
}
if (characterNew != null) {
characterNew = em.getReference(characterNew.getClass(), characterNew.getId());
weaponset.setCharacter(characterNew);
}
weaponset = em.merge(weaponset);
if (weaponsOld != null && !weaponsOld.equals(weaponsNew)) {
weaponsOld.getWeaponsetCollection().remove(weaponset);
weaponsOld = em.merge(weaponsOld);
}
if (weaponsNew != null && !weaponsNew.equals(weaponsOld)) {
weaponsNew.getWeaponsetCollection().add(weaponset);
weaponsNew = em.merge(weaponsNew);
}
if (characterOld != null && !characterOld.equals(characterNew)) {
characterOld.getWeaponsetCollection().remove(weaponset);
characterOld = em.merge(characterOld);
}
if (characterNew != null && !characterNew.equals(characterOld)) {
characterNew.getWeaponsetCollection().add(weaponset);
characterNew = em.merge(characterNew);
}
em.getTransaction().commit();
} catch (Exception ex) {
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
WeaponsetPK id = weaponset.getWeaponsetPK();
if (findWeaponset(id) == null) {
throw new NonexistentEntityException("The weaponset with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
public void destroy(WeaponsetPK id) throws NonexistentEntityException {
EntityManager em = null;
try {
em = getEntityManager();
em.getTransaction().begin();
Weaponset weaponset;
try {
weaponset = em.getReference(Weaponset.class, id);
weaponset.getWeaponsetPK();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The weaponset with id " + id + " no longer exists.", enfe);
}
Weapon weapons = weaponset.getWeapons();
if (weapons != null) {
weapons.getWeaponsetCollection().remove(weaponset);
weapons = em.merge(weapons);
}
Character character = weaponset.getCharacter();
if (character != null) {
character.getWeaponsetCollection().remove(weaponset);
character = em.merge(character);
}
em.remove(weaponset);
em.getTransaction().commit();
} finally {
if (em != null) {
em.close();
}
}
}
public List<Weaponset> findWeaponsetEntities() {
return findWeaponsetEntities(true, -1, -1);
}
public List<Weaponset> findWeaponsetEntities(int maxResults, int firstResult) {
return findWeaponsetEntities(false, maxResults, firstResult);
}
private List<Weaponset> findWeaponsetEntities(boolean all, int maxResults, int firstResult) {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
cq.select(cq.from(Weaponset.class));
Query q = em.createQuery(cq);
if (!all) {
q.setMaxResults(maxResults);
q.setFirstResult(firstResult);
}
return q.getResultList();
} finally {
em.close();
}
}
public Weaponset findWeaponset(WeaponsetPK id) {
EntityManager em = getEntityManager();
try {
return em.find(Weaponset.class, id);
} finally {
em.close();
}
}
public int getWeaponsetCount() {
EntityManager em = getEntityManager();
try {
CriteriaQuery cq = em.getCriteriaBuilder().createQuery();
Root<Weaponset> rt = cq.from(Weaponset.class);
cq.select(em.getCriteriaBuilder().count(rt));
Query q = em.createQuery(cq);
return ((Long) q.getSingleResult()).intValue();
} finally {
em.close();
}
}
}