diff options
Diffstat (limited to 'src/com.example.portfolio2/com/example/portfolio2/MyDb.java')
-rw-r--r-- | src/com.example.portfolio2/com/example/portfolio2/MyDb.java | 150 |
1 files changed, 75 insertions, 75 deletions
diff --git a/src/com.example.portfolio2/com/example/portfolio2/MyDb.java b/src/com.example.portfolio2/com/example/portfolio2/MyDb.java index f85f391..7796a16 100644 --- a/src/com.example.portfolio2/com/example/portfolio2/MyDb.java +++ b/src/com.example.portfolio2/com/example/portfolio2/MyDb.java @@ -4,83 +4,83 @@ import java.sql.*; import java.util.ArrayList; class MyDB { // MyDB is all standard Database configuration that was gotten from Mads - Connection conn = null; + Connection conn = null; - MyDB() { - if (conn == null) open(); - } + MyDB() { + if (conn == null) open(); + } - public void open() { - try { - String url = "jdbc:sqlite:identifier.sqlite"; - conn = DriverManager.getConnection(url); - } catch (SQLException e) { - System.out.println("cannot open"); - if (conn != null) close(); - throw new RuntimeException(e); - } - ; - } + public void open() { + try { + String url = "jdbc:sqlite:identifier.sqlite"; + conn = DriverManager.getConnection(url); + } catch (SQLException e) { + System.out.println("cannot open"); + if (conn != null) close(); + throw new RuntimeException(e); + } + ; + } - public void close() { - try { - if (conn != null) conn.close(); - } catch (SQLException e) { - throw new RuntimeException(e); - } - conn = null; - } - public void cmd(String sql) { - if (conn == null) open(); - if (conn == null) { - System.out.println("No connection"); - return; - } - Statement stmt = null; - try { - stmt = conn.createStatement(); - stmt.executeUpdate(sql); - } catch (SQLException e) { - System.out.println("Error in statement " + sql); - throw new RuntimeException(e); - } - try { - if (stmt != null) { - stmt.close(); - } - } catch (SQLException e) { - System.out.println("Error in statement " + sql); - throw new RuntimeException(e); - } - } + public void close() { + try { + if (conn != null) conn.close(); + } catch (SQLException e) { + throw new RuntimeException(e); + } + conn = null; + } + public void cmd(String sql) { + if (conn == null) open(); + if (conn == null) { + System.out.println("No connection"); + return; + } + Statement stmt = null; + try { + stmt = conn.createStatement(); + stmt.executeUpdate(sql); + } catch (SQLException e) { + System.out.println("Error in statement " + sql); + throw new RuntimeException(e); + } + try { + if (stmt != null) { + stmt.close(); + } + } catch (SQLException e) { + System.out.println("Error in statement " + sql); + throw new RuntimeException(e); + } + } - public ArrayList<String> query(String query, String fld) { - ArrayList<String> res = new ArrayList<>(); - if (conn == null) open(); - if (conn == null) { - System.out.println("No connection"); - throw new RuntimeException("No connection"); - } - Statement stmt = null; - try { - stmt = conn.createStatement(); - ResultSet rs = stmt.executeQuery(query); - while (rs.next()) { - String name = rs.getString(fld); - res.add(name); - } - } catch (SQLException e) { - System.out.println("Error in statement " + query + " " + fld); - throw new RuntimeException(e); - } - try { - if (stmt != null) { - stmt.close(); - } - } catch (SQLException e) { - System.out.println("Error in statement " + query + " " + fld); - throw new RuntimeException(e); - } - return res; - } + public ArrayList<String> query(String query, String fld) { + ArrayList<String> res = new ArrayList<>(); + if (conn == null) open(); + if (conn == null) { + System.out.println("No connection"); + throw new RuntimeException("No connection"); + } + Statement stmt = null; + try { + stmt = conn.createStatement(); + ResultSet rs = stmt.executeQuery(query); + while (rs.next()) { + String name = rs.getString(fld); + res.add(name); + } + } catch (SQLException e) { + System.out.println("Error in statement " + query + " " + fld); + throw new RuntimeException(e); + } + try { + if (stmt != null) { + stmt.close(); + } + } catch (SQLException e) { + System.out.println("Error in statement " + query + " " + fld); + throw new RuntimeException(e); + } + return res; + } } |