Source code: feynman/framework/datastore/DbmsDataStore.java

   package feynman.framework.datastore;
   
   import feynman.framework.system.PhysicalMeasurement;
   import java.io.*;
   import java.sql.*;
   
   public class DbmsDataStore implements DataStore {
     
     // Private instance variables.
    private Connection conn = null;
    private Statement stmt = null;
    private ResultSet rset = null;
    
    DbmsDataStore() {
      // Factory only instantiation.
    }
    
    public void open(String driver) throws ConnectionException {
      
      try {
        Class.forName(driver);
        
        conn = DriverManager.getConnection(
                         "jdbc:postgresql://127.0.0.1/feynman",
                         "feynman",
                         "feynman"
                     );
  
      }
      catch (ClassNotFoundException e) {
        throw new ConnectionException("Couldn't load database driver: " + e.toString());
      }
      catch (SQLException e) {
        throw new ConnectionException("Couldn't connect to database: " + e.toString());
      }
      
    }
    
    public void save(PhysicalMeasurement ps) {
      //null
    }
    
    public void close() throws ConnectionException {
      
      try {
        conn.close();
      }
      catch (SQLException e) {
        throw new ConnectionException(e.toString());
      }
      
    }
    
  }