membertutordaoimpljdbc.java

解觖java技术中后台无法上传数给的情况

            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new ObjectNotFoundException("Cannot find the alternate key [MemberName] (" + memberName + ") in table 'MemberTutor'.");
            }
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.findByAlternateKey_MemberName.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    /* This method is used to specify collection of member belong to one tutor
     *
     */
    public Collection getMembers_inTutor(int tutorID)
        throws DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        Collection retValue = new ArrayList();
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT MemberID, MemberName, TutorID, TutorName, CreationDate, ExpireDate, RelationType, RelationOption, RelationStatus");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE TutorID = ?");
        //sql.append(" ORDER BY ColumnName ASC|DESC "); // @todo: uncomment as needed
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, tutorID);
            resultSet = statement.executeQuery();
            while (resultSet.next()) {
                MemberTutorBean bean = new MemberTutorBean();
                bean.setMemberID(resultSet.getInt("MemberID"));
                bean.setMemberName(resultSet.getString("MemberName"));
                bean.setTutorID(resultSet.getInt("TutorID"));
                bean.setTutorName(resultSet.getString("TutorName"));
                bean.setCreationDate(resultSet.getTimestamp("CreationDate"));
                bean.setExpireDate(resultSet.getTimestamp("ExpireDate"));
                bean.setRelationType(resultSet.getInt("RelationType"));
                bean.setRelationOption(resultSet.getInt("RelationOption"));
                bean.setRelationStatus(resultSet.getInt("RelationStatus"));
                retValue.add(bean);
            }
            return retValue;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.getMembers_inTutor.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    /*
     * Included columns: MemberID, MemberName, TutorID, TutorName, CreationDate,
     *                   ExpireDate, RelationType, RelationOption, RelationStatus
     * Excluded columns:
     */
    public void create(int memberID, String memberName, int tutorID,
                       String tutorName, Timestamp creationDate, Timestamp expireDate,
                       int relationType, int relationOption, int relationStatus)
        throws CreateException, DatabaseException, DuplicateKeyException, ForeignKeyNotFoundException {

        // @todo: comment this try-catch block if the needed columns dont have attribute 'include'
        // If this is the case, then it is highly recommended that you regenerate this method with the attribute 'include' turned on
        // However, if primary key is a auto_increament column, then you can safely delete this block
        try {
            //Check if primary key already exists
            findByPrimaryKey(memberID);
            //If so, then we have to throw an exception
            throw new DuplicateKeyException("Primary key already exists. Cannot create new MemberTutor with the same [MemberID] (" + memberID + ").");
        } catch(ObjectNotFoundException e) {
            //Otherwise we can go ahead
        }

        // @todo: Comment this try-catch block if the needed columns dont have attribute 'include'
        // If this is the case, then it is highly recommended that you regenerate this method with the attribute 'include' turned on
        try {
            //Check if alternate key already exists
            findByAlternateKey_MemberName(memberName);
            //If so, then we have to throw an exception
            throw new DuplicateKeyException("Alternate key already exists. Cannot create new MemberTutor with the same [MemberName] (" + memberName + ").");
        } catch(ObjectNotFoundException e) {
            //Otherwise we can go ahead
        }
        try {
            // @todo: modify the parameter list as needed
            // You may have to regenerate this method if the needed columns dont have attribute 'include'
            DAOFactory.getMemberDAO().findByPrimaryKey(memberID);
        } catch(ObjectNotFoundException e) {
            throw new ForeignKeyNotFoundException("Foreign key [MemberID] refers to table 'Member' does not exist. Cannot create new MemberTutor.");
        }

        try {
            // @todo: modify the parameter list as needed
            // You may have to regenerate this method if the needed columns dont have attribute 'include'
            DAOFactory.getMemberDAO().findByPrimaryKey(tutorID);
        } catch(ObjectNotFoundException e) {
            throw new ForeignKeyNotFoundException("Foreign key [TutorID] refers to table 'Member' does not exist. Cannot create new MemberTutor.");
        }

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("INSERT INTO " + TABLE_NAME + " (MemberID, MemberName, TutorID, TutorName, CreationDate, ExpireDate, RelationType, RelationOption, RelationStatus)");
        sql.append(" VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());

            statement.setInt(1, memberID);
            statement.setString(2, memberName);
            statement.setInt(3, tutorID);
            statement.setString(4, tutorName);
            statement.setTimestamp(5, creationDate);
            statement.setTimestamp(6, expireDate);
            statement.setInt(7, relationType);
            statement.setInt(8, relationOption);
            statement.setInt(9, relationStatus);

            if (statement.executeUpdate() != 1) {
                throw new CreateException("Error adding a row into table 'MemberTutor'.");
            }
            m_dirty = true;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.create.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public void delete(int memberID)
        throws DatabaseException, ObjectNotFoundException {

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("DELETE FROM " + TABLE_NAME);
        sql.append(" WHERE MemberID = ?");

        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, memberID);
            if (statement.executeUpdate() != 1) {
                throw new ObjectNotFoundException("Cannot delete a row in table MemberTutor where primary key = (" + memberID + ").");
            }
            m_dirty = true;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.delete.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public void deleteMembers_inTutor(int tutorID)
        throws DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("DELETE FROM " + TABLE_NAME);
        sql.append(" WHERE TutorID = ?");

        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, tutorID);
            statement.executeUpdate();
            m_dirty = true;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.deleteMembers_inTutor.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    /*
     * Included columns: MemberID, MemberName, TutorID, TutorName, CreationDate,
     *                   ExpireDate, RelationType, RelationOption, RelationStatus
     * Excluded columns:
     */
    public MemberTutorBean getBean(int memberID)
        throws ObjectNotFoundException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT MemberID, MemberName, TutorID, TutorName, CreationDate, ExpireDate, RelationType, RelationOption, RelationStatus");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE MemberID = ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, memberID);
            resultSet = statement.executeQuery();
            if(!resultSet.next()) {
                throw new ObjectNotFoundException("Cannot find the row in table MemberTutor where primary key = (" + memberID + ").");
            }

            MemberTutorBean bean = new MemberTutorBean();
            // @todo: uncomment the following line(s) as needed
            //bean.setMemberID(memberID);
            bean.setMemberID(resultSet.getInt("MemberID"));
            bean.setMemberName(resultSet.getString("MemberName"));
            bean.setTutorID(resultSet.getInt("TutorID"));
            bean.setTutorName(resultSet.getString("TutorName"));
            bean.setCreationDate(resultSet.getTimestamp("CreationDate"));
            bean.setExpireDate(resultSet.getTimestamp("ExpireDate"));
            bean.setRelationType(resultSet.getInt("RelationType"));
            bean.setRelationOption(resultSet.getInt("RelationOption"));
            bean.setRelationStatus(resultSet.getInt("RelationStatus"));
            return bean;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.getBean(pk).");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }