membertutordaoimpljdbc.java

解觖java技术中后台无法上传数给的情况

    /*
     * Included columns: MemberID, MemberName, TutorID, TutorName, CreationDate,
     *                   ExpireDate, RelationType, RelationOption, RelationStatus
     * Excluded columns:
     */
    public Collection getBeans_inTutor_limit(int tutorID, int offset, int rowsToReturn)
        throws IllegalArgumentException, DatabaseException {
        if (offset < 0) throw new IllegalArgumentException("The offset < 0 is not allowed.");
        if (rowsToReturn <= 0) throw new IllegalArgumentException("The rowsToReturn <= 0 is not allowed.");

        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
        sql.append(" LIMIT ?, ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, tutorID);
            statement.setInt(2, offset);
            statement.setInt(3, rowsToReturn);
            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.getBeans_inTutor_limit.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfMembers()
        throws AssertionException, DatabaseException {

        if (DBUtils.getDatabaseType() != DBUtils.DATABASE_MYSQL) {
            throw new IllegalStateException("Currently only support MySql");
        }
        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT COUNT(" + MemberDAO.TABLE_NAME + ".MemberID) FROM " + MemberDAO.TABLE_NAME);
        sql.append(" LEFT JOIN " + TABLE_NAME + " ON " + MemberDAO.TABLE_NAME + ".MemberID = " + TABLE_NAME + ".MemberID ");
        sql.append(" WHERE " + TABLE_NAME + ".MemberID IS NULL");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MemberTutorDAOImplJDBC.getNumberOfMember.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.getNumberOfMembers.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inTutor(int tutorID)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE TutorID = ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, tutorID);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MemberTutorDAOImplJDBC.getNumberOfBeans_inTutor.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.getNumberOfBeans_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 Collection getBeans_inExpire_limit(Timestamp expireDate, int offset, int rowsToReturn)
        throws IllegalArgumentException, DatabaseException {
        if (offset < 0) throw new IllegalArgumentException("The offset < 0 is not allowed.");
        if (rowsToReturn <= 0) throw new IllegalArgumentException("The rowsToReturn <= 0 is not allowed.");

        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 ExpireDate <= ?");
        //sql.append(" ORDER BY ColumnName ASC|DESC "); // @todo: uncomment as needed
        sql.append(" LIMIT ?, ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setTimestamp(1, expireDate);
            statement.setInt(2, offset);
            statement.setInt(3, rowsToReturn);
            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.getBeans_inExpire_limit.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inExpire(Timestamp expireDate)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE ExpireDate <= ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setTimestamp(1, expireDate);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MemberTutorDAOImplJDBC.getNumberOfBeans_inExpire.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MemberTutorDAOImplJDBC.getNumberOfBeans_inExpire.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    /*
     * Included columns: MemberID, CreationDate, ExpireDate
     * Excluded columns: MemberName, TutorID, TutorName, RelationType, RelationOption,
     *                   RelationStatus
     */
    public void updateMember_expireDate(int memberID, // primary key
                                        Timestamp expireDate)
        throws ObjectNotFoundException, DatabaseException/*, DuplicateKeyException*/ {

        //MemberTutorBean bean = getBean(memberID); // @todo: comment or delete this line if no alternate key are included

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("UPDATE " + TABLE_NAME + " SET ExpireDate = ?");
        sql.append(" WHERE MemberID = ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());

            // // column(s) to update
            statement.setTimestamp(1, expireDate);

            // primary key column(s)
            statement.setInt(2, memberID);

            if (statement.executeUpdate() != 1) {
                throw new ObjectNotFoundException("Cannot update 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.updateMember_expireDate.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

}// end of class MemberTutorDAOImplJDBC