public List<Aviao> select() {
		List<Aviao> listaAviao = new ArrayList<Aviao>();
		Aviao aviao;
		try {
			connection = Conexao.getInstance().obterConexao();
			connection.setAutoCommit(false);
			statement = connection.createStatement();

			resultSet = statement.executeQuery("SELECT * FROM TB_AVIAO");
			while (resultSet.next()) {
				aviao = new Aviao();
				aviao.setId(resultSet.getLong("id"));
				aviao.setNome(resultSet.getString("nome"));
				aviao.setCarga(resultSet.getDouble("carga"));

				listaAviao.add(aviao);
			}
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
			try {
				if (connection != null && !connection.isClosed()) {
					connection.rollback();
				}
			} catch (Exception e2) {
				// TODO: handle exception
				e2.printStackTrace();
			} finally {
				try {
					if (resultSet != null) {
						resultSet.close();
					}
					if (statement != null) {
						statement.close();
					}
					if (connection != null) {
						connection.close();
					}
				} catch (Exception e3) {
					// TODO: handle exception
				}
			}
		}
		return listaAviao;
	}