Meeting 1

// open a quicktime session
QTSession.open();
 
// open the movie file
File file = new File("/some_movie.mpg");
OpenMovieFile openMovieFile = OpenMovieFile.asRead(new QTFile(file));
Movie movie = Movie.fromFile(openMovieFile);
 
// create a standard player for your movie
MoviePlayer player = new MoviePlayer(movie);
QTJComponent qtjPlayer = QTFactory.makeQTJComponent(player);
 
// convert the qtjPlayer to a swing conform component (awt would be possible too)
JComponent playerComponent = qtjPlayer.asJComponent();
 
// finally use the playerComponent in your common swing components
JPanel somePanel = new JPanel();
somePanel.add(playerComponent);
 
// [...]
 
// finally close the session to free the resources
QTSession.close();

import com.db4o.*;
 
public class Db4oFirstSteps {
  public static void main(String[] args) {
    ObjectContainer db = Db4o.openFile("db.yap");
    try {
      // database operations
    } finally {
      db.close();
    }
  }
}

// insert
Person person = new Person("Anna", "Nym");
db.set(person);
 
// update
person.setLastName("Nuem");
db.set(person);
 
// delete
db.delete(person);

// default values (null, false, 0, 0.0) will be ignored
Person prototype = new Person("Anna", null);
 
// pass example to the ObjectContainer
ObjectSet<Person> result = db.get(prototype);
 
while(result.hasNext()) {
  Person p = result.next();
  // process every person with firstName equals "Anna"
}

Query query = db.query();
query.constrain(Student.class);
 
// no getters necessary (private variables are accessible)
query.descend("firstName").constrain("Anna");
 
// will be and-connected with previous constrain (default)
query.descend("matrNr").constrain(525580).or(
 query.descend("matrNr").constrain(525581)
);
 
ObjectSet<Student> result = query.execute();

ObjectSet<Person> result = db.query(
  // pass an anonymous Predicate implementation
  new Predicate<Person>() {
    public boolean match(Person candidate) {
      // fetch all persons where first name is "A*"
      return candidate.getFirstName().startsWith("A");
    }
  }
);