!7

lib 1011900 // h2

static Connection conn;

import java.sql.*;
import java.lang.reflect.Array;

p {
  Class.forName("org.h2.Driver");
  conn = DriverManager.getConnection("jdbc:h2:tcp://localhost/~/test", "sa", "");
  
  print(symbolToID(print("hello"));
  print(symbolToID(print("world"));
  
  conn.close();
}

static int symbolToID(S symbol) ctex {
  PreparedStatement statement = conn.prepareStatement("select id from symbol where name=?");
  statement.setString(1, symbol);
  ResultSet rs = statement.executeQuery();
  try {
    if (rs.next())
      ret rs.getInt("id");
  } finally {
    rs.close();
  }
  
  statement = conn.prepareStatement("insert into symbol set name=?",
    statement.RETURN_GENERATED_KEYS);
  statement.setString(1, symbol);
  statement.executeUpdate();

  ResultSet generatedKeys = statement.getGeneratedKeys();
  try {
    assertTrue(generatedKeys.next());
    ret generatedKeys.getInt(1);
  } finally {
    generatedKeys.close();
  }
}