/**
 * {@inheritDoc}
 */
@Log(levelOnException = LogLevel.FATAL)
public boolean insert(final DocumentVO document, final Long warningNumber) throws DAOException {
    return (insertCore(document) && insertBranch(document, warningNumber));
}

/**
 * Method responsible for inserting document reference and transfer data
 * @param document - document information
 * @return boolean - true / success, false / fail
 * @throws DAOException
 */
@Log(levelOnException = LogLevel.FATAL)
private boolean insertCore(final DocumentVO document) throws DAOException {
    Connection connection = null;
    PreparedStatement preparedStatement = null;
    int rowsAffected = 0;

    try {
        connection = getDataSource().getConnection();

        StringBuffer sql = new StringBuffer(449);

        sql.append("INSERT INTO OWNER.TABLE_BASE (FIELD_1, FIELD_2)" +
                  " VALUES (?,?, CURRENT TIMESTAMP)");

        preparedStatement = connection.prepareStatement(sql.toString());
        preparedStatement.setLong(1, document.getDocumentId());
        preparedStatement.setLong(2, new Long(document.getUser().getId()));

        rowsAffected = preparedStatement.executeUpdate();


    } catch (SQLException e) {
        throw new DAOException(e.getMessage(), e);
    } finally {
        closeStatement(preparedStatement);
        closeConnection(connection);
    }
    return rowsAffected == 1 ? true : false;
}

/**
 * Method responsible for inserting relationship between document and specific Branch
 * @param document - document information
 * @param numeroAvas - Warning Number
 * @return boolean - true / success, false / fail
 * @throws DAOException
 */
@Log(levelOnException = LogLevel.FATAL)
private boolean insertBranch(final DocumentVO document, final Long warningNumber) throws DAOException {

    .
    .
    .
    .