basesubscriptionpeer.java

这是基于struts的用户登录程序

    /**
     * The class that the Peer will make instances of.
     * If the BO is abstract then you must implement this method
     * in the BO.
     *
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static Class getOMClass()
        throws TorqueException
    {
        return CLASS_DEFAULT;
    }

    /**
     * Method to do updates.
     *
     * @param criteria object containing data that is used to create the UPDATE
     *        statement.
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static int _doUpdate(Object obj, Criteria criteria) throws TorqueException
    {
         return BaseSubscriptionPeer
            ._doUpdate(obj, criteria, (Connection) null);
    }
  
    public static void onDoUpdate(Criteria selectCriteria, Object obj, Criteria criteria, Connection con) {
    }

    /**
     * Method to do updates.  This method is to be used during a transaction,
     * otherwise use the doUpdate(Criteria) method.  It will take care of
     * the connection details internally.
     *
     * @param criteria object containing data that is used to create the UPDATE
     *        statement.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static int _doUpdate(Object obj, Criteria criteria, Connection con)
        throws TorqueException
    {
        Criteria selectCriteria = new Criteria(DATABASE_NAME, 2);
                   selectCriteria.put(ID, criteria.remove(ID));
                                                        
      SubscriptionPeer.onDoUpdate(selectCriteria, obj, criteria, con);

        // Set the correct dbName if it has not been overridden
        // criteria.getDbName will return the same object if not set to
        // another value so == check is okay and faster
        if (criteria.getDbName() == Torque.getDefaultDB())
        {
            criteria.setDbName(DATABASE_NAME);
        }
        
         int updatedRows = 0;
        if (con == null)
        {
            updatedRows = BasePeer.doUpdate(selectCriteria, criteria);
        }
        else
        {
            updatedRows = BasePeer.doUpdate(selectCriteria, criteria, con);
        }
        if (updatedRows < 1) throw new NoRowsException(); 
        
        return updatedRows;         
    }

    /**
     * Method to do deletes.
     *
     * @param criteria object containing data that is used DELETE from database.
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
     public static void doDelete(Criteria criteria) throws TorqueException
     {
         BaseSubscriptionPeer
            .doDelete(criteria, (Connection) null);
     }

    /**
     * Method to do deletes.  This method is to be used during a transaction,
     * otherwise use the doDelete(Criteria) method.  It will take care of
     * the connection details internally.
     *
     * @param criteria object containing data that is used DELETE from database.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
     public static void doDelete(Criteria criteria, Connection con)
        throws TorqueException
     {
                                      
        // Set the correct dbName if it has not been overridden
        // criteria.getDbName will return the same object if not set to
        // another value so == check is okay and faster
        if (criteria.getDbName() == Torque.getDefaultDB())
        {
            criteria.setDbName(DATABASE_NAME);
        }
        if (con == null)
        {
            BasePeer.doDelete(criteria);
        }
        else
        {
            BasePeer.doDelete(criteria, con);
        }
     }

    /**
     * Method to do selects
     *
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static List doSelect(Subscription obj) throws TorqueException
    {
        return doSelect(buildCriteria(obj));
    }

    /**
     * Method to do inserts
     *
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doInsert(Subscription obj) throws TorqueException
    {
          obj.setPrimaryKey(doInsert(buildCriteria(obj)));
          obj.setNew(false);
        obj.setModified(false);
    }

    /**
     * @param obj the data object to update in the database.
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static int doUpdate(Subscription obj) throws TorqueException
    {
        int num = _doUpdate(obj, buildCriteria(obj));
        obj.setModified(false);
        return num;
    }

    /**
     * @param obj the data object to delete in the database.
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doDelete(Subscription obj) throws TorqueException
    {
        doDelete(buildCriteria(obj));
    }

    /**
     * Method to do inserts.  This method is to be used during a transaction,
     * otherwise use the doInsert(Subscription) method.  It will take
     * care of the connection details internally.
     *
     * @param obj the data object to insert into the database.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doInsert(Subscription obj, Connection con)
        throws TorqueException
    {
          obj.setPrimaryKey(doInsert(buildCriteria(obj), con));
          obj.setNew(false);
        obj.setModified(false);
    }

    /**
     * Method to do update.  This method is to be used during a transaction,
     * otherwise use the doUpdate(Subscription) method.  It will take
     * care of the connection details internally.
     *
     * @param obj the data object to update in the database.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static int doUpdate(Subscription obj, Connection con)
        throws TorqueException
    {
        int num = _doUpdate(obj, buildCriteria(obj), con);
        obj.setModified(false);
        return num;
    }

    /**
     * Method to delete.  This method is to be used during a transaction,
     * otherwise use the doDelete(Subscription) method.  It will take
     * care of the connection details internally.
     *
     * @param obj the data object to delete in the database.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doDelete(Subscription obj, Connection con)
        throws TorqueException
    {
        doDelete(buildCriteria(obj), con);
    }

    /**
     * Method to do deletes.
     *
     * @param pk ObjectKey that is used DELETE from database.
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doDelete(ObjectKey pk) throws TorqueException
    {
        BaseSubscriptionPeer
           .doDelete(pk, (Connection) null);
    }

    /**
     * Method to delete.  This method is to be used during a transaction,
     * otherwise use the doDelete(ObjectKey) method.  It will take
     * care of the connection details internally.
     *
     * @param pk the primary key for the object to delete in the database.
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static void doDelete(ObjectKey pk, Connection con)
        throws TorqueException
    {
        doDelete(buildCriteria(pk), con);
    }

    /** Build a Criteria object from an ObjectKey */
    public static Criteria buildCriteria( ObjectKey pk )
    {
        Criteria criteria = new Criteria();
              criteria.add(ID, pk);
          return criteria;
     }

    /** Build a Criteria object from the data object for this peer */
    public static Criteria buildCriteria( Subscription obj )
    {
        Criteria criteria = new Criteria(DATABASE_NAME);
              if (!obj.isNew())
                criteria.add(ID, obj.getId());
                  criteria.add(USERNAME, obj.getUsername());
                  criteria.add(HOST, obj.getHost());
                  criteria.add(AUTOCONNECT, obj.getAutoConnect());
                  criteria.add(PASSWORD, obj.getPassword());
                  criteria.add(DTYPE, obj.getType());
          return criteria;
    }
 
    
        /**
     * Retrieve a single object by pk
     *
     * @param pk the primary key
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     * @throws NoRowsException Primary key was not found in database.
     * @throws TooManyRowsException Primary key was not found in database.
     */
    public static Subscription retrieveByPK(int pk)
        throws TorqueException, NoRowsException, TooManyRowsException
    {
        return retrieveByPK(SimpleKey.keyFor(pk));
    }
  
    /**
     * Retrieve a single object by pk
     *
     * @param pk the primary key
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     * @throws NoRowsException Primary key was not found in database.
     * @throws TooManyRowsException Primary key was not found in database.
     */
    public static Subscription retrieveByPK(ObjectKey pk)
        throws TorqueException, NoRowsException, TooManyRowsException
    {
        Connection db = null;
        Subscription retVal = null;
        try
        {
            db = Torque.getConnection(DATABASE_NAME);
            retVal = retrieveByPK(pk, db);
        }
        finally
        {
            Torque.closeConnection(db);
        }
        return(retVal);
    }

    /**
     * Retrieve a single object by pk
     *
     * @param pk the primary key
     * @param con the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     * @throws NoRowsException Primary key was not found in database.
     * @throws TooManyRowsException Primary key was not found in database.
     */
    public static Subscription retrieveByPK(ObjectKey pk, Connection con)
        throws TorqueException, NoRowsException, TooManyRowsException
    {
        Criteria criteria = buildCriteria(pk);
        List v = doSelect(criteria, con);
        if (v.size() == 0)
        {
            throw new NoRowsException("Failed to select a row.");
        }
        else if (v.size() > 1)
        {
            throw new TooManyRowsException("Failed to select only one row.");
        }
        else
        {
            return (Subscription)v.get(0);
        }
    }

    /**
     * Retrieve a multiple objects by pk
     *
     * @param pks List of primary keys
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static List retrieveByPKs(List pks)
        throws TorqueException
    {
        Connection db = null;
        List retVal = null;
        try
        {
           db = Torque.getConnection(DATABASE_NAME);
           retVal = retrieveByPKs(pks, db);
        }
        finally
        {
            Torque.closeConnection(db);
        }
        return(retVal);
    }

    /**
     * Retrieve a multiple objects by pk
     *
     * @param pks List of primary keys
     * @param dbcon the connection to use
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    public static List retrieveByPKs( List pks, Connection dbcon )
        throws TorqueException
    {
        List objs = null;
        if (pks == null || pks.size() == 0)
        {
            objs = new LinkedList();
        }
        else
        {
            Criteria criteria = new Criteria();
              criteria.addIn( ID, pks );
          objs = doSelect(criteria, dbcon);
        }
        return objs;
    }

 



        
  
  
    
  
      /**
     * Returns the TableMap related to this peer.  This method is not
     * needed for general use but a specific application could have a need.
     *
     * @throws TorqueException Any exceptions caught during processing will be
     *         rethrown wrapped into a TorqueException.
     */
    protected static TableMap getTableMap()
        throws TorqueException
    {
        return Torque.getDatabaseMap(DATABASE_NAME).getTable(TABLE_NAME);
    }
   }