Java Session类代码示例

import net.sf.hibernate.Session; //导入依赖的package包/类
Session getSession(JCASessionImpl handle) {
	// JCA 1.0, 5.5.4
	// Ensure that there is at most one connection handle associated
	// actively with a ManagedConnection instance. [skiped] Any operations
	// on the ManagedConnection from any previously created connection
	// handles should result in an application level exception.

	// this might be pretty bad for performance, profile and find a
	// better way if it is really bad
	synchronized (handles) {
		if ( handles.size() > 0 && handles.get(0) == handle) {
			return session;
		}
		else {
			final String message = "Inactive logical session handle called";
			// cannot throw HibernateException because not all Session
			// methods throws it. This is incompatible with the spec!
			throw new IllegalStateException(message);
		}
	}
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Retrieve the persistent object bound to the given name.
 * @see org.odmg.Database#lookup(String)
 */
public Object lookup(String name) throws ObjectNameNotFoundException {
	try {
		Session s = getSession();
		Name nameObj;
		try {
			nameObj = (Name) s.load(Name.class, name);
		}
		catch (ObjectNotFoundException onfe) {
			throw new ObjectNameNotFoundException();
		}
		return s.load( nameObj.getPersistentClass(), nameObj.getId() );
	}
	catch (HibernateException he) {
		throw new ODMGRuntimeException( he.getMessage() );
	}
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Unbind the given name.
 * @see org.odmg.Database#unbind(String)
 */
public void unbind(String name) throws ObjectNameNotFoundException {
	try {
		Session s = getSession();
		Name nameObj;
		try {
			nameObj = (Name) s.load(Name.class, name);
		}
		catch (ObjectNotFoundException onfe) {
			throw new ObjectNameNotFoundException();
		}
		s.delete(nameObj);
	}
	catch (HibernateException he) {
		throw new ODMGRuntimeException( he.getMessage() );
	}
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Demonstrates detached object support
 */
public void changeUserDetails(User user) throws Exception {
	System.out.println("Changing user details for: " + user.getId() );
	
	Session s = factory.openSession();
	Transaction tx=null;
	try {
		tx = s.beginTransaction();
		
		s.saveOrUpdate(user);
		
		tx.commit();
	}
	catch (Exception e) {
		if (tx!=null) tx.rollback();
		throw e;
	}
	finally {
		s.close();
	}
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Demonstrates automatic dirty checking
 */
public void changeItemDescription(Long itemId, String description) throws Exception {
	System.out.println("Changing auction item description for: " + itemId );
	
	Session s = factory.openSession();
	Transaction tx=null;
	try {
		tx = s.beginTransaction();
	
		AuctionItem item = (AuctionItem) s.get(AuctionItem.class, itemId);
		if (item==null) throw new IllegalArgumentException("No item for the given id: " + itemId);
		item.setDescription(description);
		
		tx.commit();
	}
	catch (Exception e) {
		if (tx!=null) tx.rollback();
		throw e;
	}
	finally {
		s.close();
	}
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
private int saveChangeList(final ChangeList chl, final Session session) throws HibernateException {
  session.saveOrUpdate(chl);
  // set synthetic change list number if necessary
  final int changeListID = chl.getChangeListID();
  if (StringUtils.isBlank(chl.getNumber())) {
    chl.setNumber(Integer.toString(changeListID));
    session.saveOrUpdate(chl);
  }
  for (final Iterator iter = chl.getChanges().iterator(); iter.hasNext(); ) {
    final Change ch = (Change) iter.next();
    if (ch.getChangeListID() == ChangeList.UNSAVED_ID) {
      ch.setChangeListID(changeListID);
    }
    session.saveOrUpdate(ch);
  }
  return changeListID;
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Returns list of PersistentObject corresponding the type of
 * the statistics.
 *
 * @param session
 * @param buildID
 * @param fromDate
 * @return
 * @throws HibernateException
 */
protected List getStatsFromDB(final Session session, final int buildID, final Date fromDate,
                              final Date toDate) throws HibernateException {

  final Query q = session.createQuery("select ms from MonthlyTestStats ms " +
          " where ms.activeBuildID = ? " +
          "   and ms.testCode = ? " +
          "   and ms.sampleTime >= ? " +
          "   and ms.sampleTime <= ?");
  q.setCacheable(true);
  q.setInteger(0, buildID);
  q.setByte(1, getTestCode());
  q.setDate(2, fromDate);
  q.setDate(3, toDate);
  return q.list();
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Returns list of PersistentObject corresponding the type of
 * the statistics.
 *
 * @param session
 * @param buildID
 * @param fromDate
 * @return
 * @throws HibernateException
 */
protected List getStatsFromDB(final Session session, final int buildID, final Date fromDate,
                              final Date toDate) throws HibernateException {

  final Query q = session.createQuery("select hts from HourlyTestStats hts " +
          " where hts.activeBuildID = ? " +
          "   and hts.testCode = ? " +
          "   and hts.sampleTime >= ? " +
          "   and hts.sampleTime <= ?");
  q.setCacheable(true);
  q.setInteger(0, buildID);
  q.setByte(1, getTestCode());
  q.setDate(2, fromDate);
  q.setDate(3, toDate);
  return q.list();
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Returns list of PersistentObject corresponding the type of
 * the statistics.
 *
 * @param session
 * @param buildID
 * @param fromDate
 * @return
 * @throws HibernateException
 */
protected List getStatsFromDB(final Session session, final int buildID, final Date fromDate,
                              final Date toDate) throws HibernateException {

  final Query q = session.createQuery("select mts from MonthlyTestStats mts " +
          " where mts.activeBuildID = ? " +
          "   and mts.testCode = ? " +
          "   and mts.sampleTime >= ? " +
          "   and mts.sampleTime <= ?");
  q.setCacheable(true);
  q.setInteger(0, buildID);
  q.setByte(1, getTestCode());
  q.setDate(2, fromDate);
  q.setDate(3, toDate);
  return q.list();
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Returns list of PersistentObject corresponding the type of
 * the statistics.
 *
 * @param session
 * @param buildID
 * @param fromDate
 * @return
 * @throws HibernateException
 */
protected List getStatsFromDB(final Session session, final int buildID, final Date fromDate,
                              final Date toDate) throws HibernateException {

  final Query q = session.createQuery("select dts from DailyTestStats dts " +
          " where dts.activeBuildID = ? " +
          "   and dts.testCode = ? " +
          "   and dts.sampleTime >= ? " +
          "   and dts.sampleTime <= ?");
  q.setCacheable(true);
  q.setInteger(0, buildID);
  q.setByte(1, getTestCode());
  q.setDate(2, fromDate);
  q.setDate(3, toDate);
  return q.list();
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * @ejb.interface-method
 * @ejb.permission role-name="${role.gestor},${role.admin},${role.auto}"
 */
public Permiso obtenerPermiso(Long codigo) {
    Session session = getSession();
    try {
    	// Cargamos permiso        	
    	Permiso permiso = (Permiso) session.load(Permiso.class, codigo);
    	
        return permiso;
    } catch (ObjectNotFoundException onfe) {
        return null;
    } catch (HibernateException he) {
        throw new EJBException(he);
    } finally {
        close(session);
    }
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * @ejb.interface-method
 * @ejb.permission role-name="${role.admin}"
 */
public Long grabarPermiso(Permiso obj) { 
	
	Session session = getSession();
    try {
    	if(obj.getCodigo()!=null)
    		session.update(obj);
    	else        	
    		session.save(obj);
    	
        return obj.getCodigo();
    } catch (HibernateException he) {
        throw new EJBException(he);
    } finally {
    	
        close(session);
    }
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Lista todos los puntos salida de un formulario
 * @ejb.interface-method
 * @ejb.permission unchecked="true"
 */
public List listarPuntosSalidaFormulario(Long idFormulario) {
    Session session = getSession();
    try {
        List puntosSalida = new ArrayList();
        Formulario formulario = (Formulario)session.load(Formulario.class, idFormulario);
        List salidas = formulario.getSalidas();
        for (int i = 0; i < salidas.size(); i++) {
            Salida salida = (Salida) salidas.get(i);
            puntosSalida.add(salida.getPunto());
        }
        return puntosSalida;

    } catch (HibernateException he) {
        throw new EJBException(he);
    } finally {
        close(session);
    }
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * @ejb.interface-method
 *  @ejb.permission role-name="${role.gestor}"
 *  @ejb.permission role-name="${role.auto}"
 */
public Long grabarNuevaNotificacionTelematica(NotificacionTelematica obj) {        
	Session session = getSession();
    try {        	
    	if (obj.getCodigo() == null){
    		session.save(obj);
    	}else{
    		throw new Exception("No se permite actualizar notificacion telematica");
    	}
    	                    	
        return obj.getCodigo();
    } catch (Exception he) {
        throw new EJBException(he);
    } finally {
    	
        close(session);
    }
}
 

import net.sf.hibernate.Session; //导入依赖的package包/类
/**
 * Crea o actualiza un componente de una paleta.
 * @ejb.interface-method
 * @ejb.permission role-name="${role.admin}"
 */
public void gravarComponentePaleta(Componente componente, Long paleta_id) {
    Session session = getSession();
    try {
        if (componente.getId() == null) {
            Paleta paleta = (Paleta) session.load(Paleta.class, paleta_id);
            paleta.addComponente(componente);
            session.flush();
        } else {
            session.update(componente);
        }
    } catch (HibernateException he) {
        throw new EJBException(he);
    } finally {
        close(session);
    }
}