Java HibernateEntityManager类代码示例

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public Map<String, Object> getIdMetadata(Class<?> entityClass, HibernateEntityManager entityManager) {
    Map<String, Object> response = new HashMap<String, Object>();
    SessionFactory sessionFactory = entityManager.getSession().getSessionFactory();
    
    ClassMetadata metadata = sessionFactory.getClassMetadata(entityClass);
    if (metadata == null) {
        return null;
    }
    
    String idProperty = metadata.getIdentifierPropertyName();
    response.put("name", idProperty);
    Type idType = metadata.getIdentifierType();
    response.put("type", idType);

    return response;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public Map<String, Object> getIdMetadata(Class<?> entityClass, HibernateEntityManager entityManager) {
    entityClass = getNonProxyImplementationClassIfNecessary(entityClass);
    Map<String, Object> response = new HashMap<String, Object>();
    SessionFactory sessionFactory = entityManager.getSession().getSessionFactory();
    
    ClassMetadata metadata = sessionFactory.getClassMetadata(entityClass);
    if (metadata == null) {
        return null;
    }
    
    String idProperty = metadata.getIdentifierPropertyName();
    response.put("name", idProperty);
    Type idType = metadata.getIdentifierType();
    response.put("type", idType);

    return response;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
private void init(HibernateEntityManager hem) {
	hem.getSession().doWork(new Work() {

		@Override
		public void execute(Connection connection) throws SQLException {
			String dbName = connection.getMetaData().getDatabaseProductName();
			if (dbName.equals(MSSQLDialect.PRODUCT_NAME)) {
				dialect = new MSSQLDialect();
			} else if (dbName.equals(PostgresDialect.PRODUCT_NAME)) {
				dialect = new PostgresDialect();
			} else if (dbName.equals(H2Dialect.PRODUCT_NAME)) {
				dialect = new H2Dialect();
			} else if (dbName.equals(MySQLDialect.PRODUCT_NAME)) {
				dialect = new MySQLDialect();
			} else {
				dialect = new DefaultDialect();
			}
		}
	});
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
public IndicatorListResult execute(final GetIndicators cmd, final UserExecutionContext context) throws CommandException {
	final EntityManager entityManager = em();
	
	// Creates a new instance for every call.
	// Be careful, this must NOT be a singleton because the DAO is stateful.
	final IndicatorDAO indicatorDAO = new IndicatorHibernateDAO();
	
	if(entityManager instanceof HibernateEntityManager) {
		findIndicators((HibernateEntityManager)entityManager, indicatorDAO, cmd.getUserDatabaseId());
	} else {
		throw new UnsupportedOperationException("Entity manager type not supported. Required org.hibernate.ejb.HibernateEntityManager, found: " + entityManager.getClass().getName());
	}
	
	return indicatorDAO.getResult();
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
/**
 * Saves a business object.
 * 
 * @see org.kuali.rice.krad.dao.BusinessObjectDao#save(org.kuali.rice.krad.bo.PersistableBusinessObject)
 */
public PersistableBusinessObject save(PersistableBusinessObject bo) throws DataAccessException {
	/* KC determined this is not needed for JPA
	// if collections exist on the BO, create a copy and use to process the
	// collections to ensure
	// that removed elements are deleted from the database
	Set<String> boCollections = getPersistenceStructureService().listCollectionObjectTypes(bo.getClass()).keySet();
	PersistableBusinessObject savedBo = null;
	if (!boCollections.isEmpty()) {
		// refresh bo to get db copy of collections
		savedBo = (PersistableBusinessObject) ObjectUtils.deepCopy(bo);
		for (String boCollection : boCollections) {
			if (getPersistenceStructureService().isCollectionUpdatable(savedBo.getClass(), boCollection)) {
				savedBo.refreshReferenceObject(boCollection);
			}
		}
	}
	*/
	if (entityManager.contains(bo) && ((HibernateEntityManager)entityManager).getSession().isReadOnly(bo)) {
		((HibernateEntityManager)entityManager).getSession().setReadOnly(bo, false); // are we read only?  turn that off...
	}
	return reattachAndSave(bo);
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public Blob createBlob(MultipartFile uploadedFile) throws IOException {
    Long size = uploadedFile.getSize();
    InputStream inputStream = uploadedFile.getInputStream();
    //We'll work with Blob instances and streams so that the uploaded files are never read into memory
    return ((HibernateEntityManager) em).getSession().getLobHelper().createBlob(inputStream, size);
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
@SuppressWarnings("rawtypes")
public Object readGenericEntity(Class<?> clazz, Object id) {
    Map<String, Object> md = daoHelper.getIdMetadata(clazz, (HibernateEntityManager) em);
    AbstractSingleColumnStandardBasicType type = (AbstractSingleColumnStandardBasicType) md.get("type");
    
    if (type instanceof LongType) {
        id = Long.parseLong(String.valueOf(id));
    } else if (type instanceof IntegerType) {
        id = Integer.parseInt(String.valueOf(id));
    }

    return em.find(clazz, id);
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public List<String> getPropertyNames(Class<?> entityClass, HibernateEntityManager entityManager) {
    ClassMetadata metadata = getSessionFactory(entityManager).getClassMetadata(entityClass);
    List<String> propertyNames = new ArrayList<String>();
    Collections.addAll(propertyNames, metadata.getPropertyNames());
    return propertyNames;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public List<Type> getPropertyTypes(Class<?> entityClass, HibernateEntityManager entityManager) {
    ClassMetadata metadata = getSessionFactory(entityManager).getClassMetadata(entityClass);
    List<Type> propertyTypes = new ArrayList<Type>();
    Collections.addAll(propertyTypes, metadata.getPropertyTypes());
    return propertyTypes;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public List<Offer> readOffersByAutomaticDeliveryType() {
    //TODO change this to a JPA criteria
    Criteria criteria = ((HibernateEntityManager) em).getSession().createCriteria(OfferImpl.class);

    Date myDate = getCurrentDateAfterFactoringInDateResolution();

    Calendar c = Calendar.getInstance();
    c.setTime(myDate);
    c.add(Calendar.DATE, +1);
    criteria.add(Restrictions.lt("startDate", c.getTime()));
    c = Calendar.getInstance();
    c.setTime(myDate);
    c.add(Calendar.DATE, -1);
    criteria.add(Restrictions.or(Restrictions.isNull("endDate"), Restrictions.gt("endDate", c.getTime())));
    criteria.add(Restrictions.or(Restrictions.eq("archiveStatus.archived", 'N'),
            Restrictions.isNull("archiveStatus.archived")));

    // Automatically Added or (Automatically Added is null and deliveryType is Automatic)
    criteria.add(Restrictions.or(Restrictions.eq("automaticallyAdded", true),
            Restrictions.and(Restrictions.isNull("automaticallyAdded"),
                    Restrictions.eq("deliveryType", "AUTOMATIC"))));

    criteria.setCacheable(true);
    criteria.setCacheRegion("query.Offer");

    return criteria.list();
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
protected String[] getPolymorphicClasses(Class<?> clazz) {
    DynamicDaoHelperImpl helper = new DynamicDaoHelperImpl();
    Class<?>[] classes = helper.getAllPolymorphicEntitiesFromCeiling(clazz,
            helper.getSessionFactory((HibernateEntityManager) em), 
            true,
            useCache());
    String[] result = new String[classes.length];
    for (int i = 0; i < classes.length; i++) {
        result[i] = classes[i].getName();
    }
    return result;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public <T> T readGenericEntity(Class<T> clazz, Object id) {
    clazz = (Class<T>) DynamicDaoHelperImpl.getNonProxyImplementationClassIfNecessary(clazz);
    Map<String, Object> md = daoHelper.getIdMetadata(clazz, (HibernateEntityManager) em);
    AbstractSingleColumnStandardBasicType type = (AbstractSingleColumnStandardBasicType) md.get("type");
    
    if (type instanceof LongType) {
        id = Long.parseLong(String.valueOf(id));
    } else if (type instanceof IntegerType) {
        id = Integer.parseInt(String.valueOf(id));
    }

    return em.find(clazz, id);
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public List<String> getPropertyNames(Class<?> entityClass, HibernateEntityManager entityManager) {
    entityClass = getNonProxyImplementationClassIfNecessary(entityClass);
    ClassMetadata metadata = getSessionFactory(entityManager).getClassMetadata(entityClass);
    List<String> propertyNames = new ArrayList<String>();
    Collections.addAll(propertyNames, metadata.getPropertyNames());
    return propertyNames;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
@Override
public List<Type> getPropertyTypes(Class<?> entityClass, HibernateEntityManager entityManager) {
    entityClass = getNonProxyImplementationClassIfNecessary(entityClass);
    ClassMetadata metadata = getSessionFactory(entityManager).getClassMetadata(entityClass);
    List<Type> propertyTypes = new ArrayList<Type>();
    Collections.addAll(propertyTypes, metadata.getPropertyTypes());
    return propertyTypes;
}
 

import org.hibernate.ejb.HibernateEntityManager; //导入依赖的package包/类
private static void activateSession() {
    Map<Object, Object> resourceMap = TransactionSynchronizationManager.getResourceMap();
    for (Map.Entry<Object, Object> entry : resourceMap.entrySet()) {
        if (entry.getKey() instanceof EntityManagerFactory && entry.getValue() instanceof EntityManagerHolder) {
            ((HibernateEntityManager) ((EntityManagerHolder) entry.getValue()).getEntityManager()).getSession();
        }
    }
}