java/jdbc-loopback-driver/src/info/globalcode/jdbc/loopback/ResultSetMetaData.java
Avoid reusing/rewriting the DB connection properties.
There was weird random errors while testing connection to multiple DB in parallel when one of them was meta connection to same DB connection.
Two kinds of exception: 1) missing password 2) „Passing DB password as CLI parameter is insecure!“
3 * Copyright © 2014 František Kučera (frantovo.cz)
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package info.globalcode.jdbc.loopback;
20 import java.sql.SQLException;
21 import java.util.ArrayList;
22 import java.util.List;
26 * @author Ing. František Kučera (frantovo.cz)
28 public class ResultSetMetaData extends AbstractResultSetMetaData {
30 private List<ColumnDescriptor> columns = new ArrayList<>();
32 public void addColumn(ColumnDescriptor cd) {
37 public int getColumnCount() throws SQLException {
38 return columns.size();
42 public String getColumnLabel(int column) throws SQLException {
43 return columns.get(column - 1).label;
47 public String getColumnName(int column) throws SQLException {
48 return columns.get(column - 1).name;
52 public int getColumnType(int column) throws SQLException {
53 return columns.get(column - 1).type;
57 public String getColumnTypeName(int column) throws SQLException {
58 return columns.get(column - 1).typeName;
61 public static class ColumnDescriptor {
63 private final int type;
64 private final String typeName;
65 private final String label;
66 private final String name;
68 public ColumnDescriptor(int type, String typeName, String label, String name) {
70 this.typeName = typeName;