本文整理汇总了Java中javax.persistence.EntityManager.getReference方法的典型用法代码示例。如果您正苦于以下问题：Java EntityManager.getReference方法的具体用法？Java EntityManager.getReference怎么用？Java EntityManager.getReference使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.persistence.EntityManager的用法示例。
在下文中一共展示了EntityManager.getReference方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: destroy
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void destroy(String id) throws IllegalOrphanException, NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Propietario propietario;
try {
propietario = em.getReference(Propietario.class, id);
propietario.getCedula();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The propietario with id " + id + " no longer exists.", enfe);
}
List<String> illegalOrphanMessages = null;
Collection<Telefono> telefonoCollectionOrphanCheck = propietario.getTelefonoCollection();
for (Telefono telefonoCollectionOrphanCheckTelefono : telefonoCollectionOrphanCheck) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("This Propietario (" + propietario + ") cannot be destroyed since the Telefono " + telefonoCollectionOrphanCheckTelefono + " in its telefonoCollection field has a non-nullable propietarioId field.");
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
em.remove(propietario);
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例2: create
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void create(Telefono telefono) throws RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Propietario propietarioId = telefono.getPropietarioId();
if (propietarioId != null) {
propietarioId = em.getReference(propietarioId.getClass(), propietarioId.getCedula());
telefono.setPropietarioId(propietarioId);
}
em.persist(telefono);
if (propietarioId != null) {
propietarioId.getTelefonoCollection().add(telefono);
propietarioId = em.merge(propietarioId);
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例3: destroy
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void destroy(Integer id) throws NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Telefono telefono;
try {
telefono = em.getReference(Telefono.class, id);
telefono.getId();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The telefono with id " + id + " no longer exists.", enfe);
}
Propietario propietarioId = telefono.getPropietarioId();
if (propietarioId != null) {
propietarioId.getTelefonoCollection().remove(telefono);
propietarioId = em.merge(propietarioId);
}
em.remove(telefono);
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例4: destroy
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void destroy(String _id) throws NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Usuario user;
try {
user = em.getReference(Usuario.class, _id);
user.getId();
} catch (EntityNotFoundException enfe) {
throw new NonexistentEntityException("The persona with id " + _id + " no longer exists.", enfe);
}
em.remove(user);
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例5: create
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void create(Propietario propietario) throws PreexistingEntityException, RollbackFailureException, Exception {
if (propietario.getTelefonoCollection() == null) {
propietario.setTelefonoCollection(new ArrayList<Telefono>());
}
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Collection<Telefono> attachedTelefonoCollection = new ArrayList<Telefono>();
for (Telefono telefonoCollectionTelefonoToAttach : propietario.getTelefonoCollection()) {
telefonoCollectionTelefonoToAttach = em.getReference(telefonoCollectionTelefonoToAttach.getClass(), telefonoCollectionTelefonoToAttach.getId());
attachedTelefonoCollection.add(telefonoCollectionTelefonoToAttach);
}
propietario.setTelefonoCollection(attachedTelefonoCollection);
em.persist(propietario);
for (Telefono telefonoCollectionTelefono : propietario.getTelefonoCollection()) {
Propietario oldPropietarioIdOfTelefonoCollectionTelefono = telefonoCollectionTelefono.getPropietarioId();
telefonoCollectionTelefono.setPropietarioId(propietario);
telefonoCollectionTelefono = em.merge(telefonoCollectionTelefono);
if (oldPropietarioIdOfTelefonoCollectionTelefono != null) {
oldPropietarioIdOfTelefonoCollectionTelefono.getTelefonoCollection().remove(telefonoCollectionTelefono);
oldPropietarioIdOfTelefonoCollectionTelefono = em.merge(oldPropietarioIdOfTelefonoCollectionTelefono);
}
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
if (findPropietario(propietario.getCedula()) != null) {
throw new PreexistingEntityException("Propietario " + propietario + " already exists.", ex);
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例6: edit
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void edit(Propietario propietario) throws IllegalOrphanException, NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Propietario persistentPropietario = em.find(Propietario.class, propietario.getCedula());
Collection<Telefono> telefonoCollectionOld = persistentPropietario.getTelefonoCollection();
Collection<Telefono> telefonoCollectionNew = propietario.getTelefonoCollection();
List<String> illegalOrphanMessages = null;
for (Telefono telefonoCollectionOldTelefono : telefonoCollectionOld) {
if (!telefonoCollectionNew.contains(telefonoCollectionOldTelefono)) {
if (illegalOrphanMessages == null) {
illegalOrphanMessages = new ArrayList<String>();
}
illegalOrphanMessages.add("You must retain Telefono " + telefonoCollectionOldTelefono + " since its propietarioId field is not nullable.");
}
}
if (illegalOrphanMessages != null) {
throw new IllegalOrphanException(illegalOrphanMessages);
}
Collection<Telefono> attachedTelefonoCollectionNew = new ArrayList<Telefono>();
for (Telefono telefonoCollectionNewTelefonoToAttach : telefonoCollectionNew) {
telefonoCollectionNewTelefonoToAttach = em.getReference(telefonoCollectionNewTelefonoToAttach.getClass(), telefonoCollectionNewTelefonoToAttach.getId());
attachedTelefonoCollectionNew.add(telefonoCollectionNewTelefonoToAttach);
}
telefonoCollectionNew = attachedTelefonoCollectionNew;
propietario.setTelefonoCollection(telefonoCollectionNew);
propietario = em.merge(propietario);
for (Telefono telefonoCollectionNewTelefono : telefonoCollectionNew) {
if (!telefonoCollectionOld.contains(telefonoCollectionNewTelefono)) {
Propietario oldPropietarioIdOfTelefonoCollectionNewTelefono = telefonoCollectionNewTelefono.getPropietarioId();
telefonoCollectionNewTelefono.setPropietarioId(propietario);
telefonoCollectionNewTelefono = em.merge(telefonoCollectionNewTelefono);
if (oldPropietarioIdOfTelefonoCollectionNewTelefono != null && !oldPropietarioIdOfTelefonoCollectionNewTelefono.equals(propietario)) {
oldPropietarioIdOfTelefonoCollectionNewTelefono.getTelefonoCollection().remove(telefonoCollectionNewTelefono);
oldPropietarioIdOfTelefonoCollectionNewTelefono = em.merge(oldPropietarioIdOfTelefonoCollectionNewTelefono);
}
}
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
String id = propietario.getCedula();
if (findPropietario(id) == null) {
throw new NonexistentEntityException("The propietario with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例7: edit
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public void edit(Telefono telefono) throws NonexistentEntityException, RollbackFailureException, Exception {
EntityManager em = null;
try {
utx.begin();
em = getEntityManager();
Telefono persistentTelefono = em.find(Telefono.class, telefono.getId());
Propietario propietarioIdOld = persistentTelefono.getPropietarioId();
Propietario propietarioIdNew = telefono.getPropietarioId();
if (propietarioIdNew != null) {
propietarioIdNew = em.getReference(propietarioIdNew.getClass(), propietarioIdNew.getCedula());
telefono.setPropietarioId(propietarioIdNew);
}
telefono = em.merge(telefono);
if (propietarioIdOld != null && !propietarioIdOld.equals(propietarioIdNew)) {
propietarioIdOld.getTelefonoCollection().remove(telefono);
propietarioIdOld = em.merge(propietarioIdOld);
}
if (propietarioIdNew != null && !propietarioIdNew.equals(propietarioIdOld)) {
propietarioIdNew.getTelefonoCollection().add(telefono);
propietarioIdNew = em.merge(propietarioIdNew);
}
utx.commit();
} catch (Exception ex) {
try {
utx.rollback();
} catch (Exception re) {
throw new RollbackFailureException("An error occurred attempting to roll back the transaction.", re);
}
String msg = ex.getLocalizedMessage();
if (msg == null || msg.length() == 0) {
Integer id = telefono.getId();
if (findTelefono(id) == null) {
throw new NonexistentEntityException("The telefono with id " + id + " no longer exists.");
}
}
throw ex;
} finally {
if (em != null) {
em.close();
}
}
}
示例8: getGuestById
import javax.persistence.EntityManager; //导入方法依赖的package包/类
public Guest getGuestById(Long id) {
EntityManager entityManager = HibernateUtil.getEntityManager();
Guest guest = entityManager.getReference(Guest.class, id);
entityManager.close();
return guest;
}