public static void demo() throws IOException {
PersistenceManagerFactory factory = new EmbeddedPersistenceManagerFactory();
factory.setCredentials("onyx-user", "SavingDataisFun!");
String pathToOnyxDB =
System.getProperty("user.home")
+ File.separatorChar
+ ".onyxdb"
+ File.separatorChar
+ "sandbox"
+ File.separatorChar
+ "relationship-cascade-save-db.oxd";
factory.setDatabaseLocation(pathToOnyxDB);
// Delete database so you have a clean slate
deleteDatabase(pathToOnyxDB);
factory.initialize();
PersistenceManager manager = factory.getPersistenceManager();
// Create a new sailboat named Wind Passer and Registration(Primary Key) NCC1701
Sailboat sailboat = new Sailboat();
sailboat.setRegistrationCode("NCC1701");
sailboat.setName("Wind Passer");
// Create a new Skipper named Martha McFly
Skipper sailboatSkipper = new Skipper();
sailboatSkipper.setFirstName("Martha");
sailboatSkipper.setLastName("McFly");
// Define the relationship
sailboat.setSkipper(sailboatSkipper);
// Save the sailboat
manager.saveEntity(sailboat);
System.out.println(
"Created a new Sailboat "
+ sailboatSkipper.getSailboat().getName()
+ " with Skipper "
+ sailboatSkipper.getFirstName());
// Find the sailboat by ID
Sailboat newlyCreatedSailboat = (Sailboat) manager.findById(Sailboat.class, "NCC1701");
System.out.println(
"Sailboat "
+ newlyCreatedSailboat.getName()
+ " was created with skipper "
+ newlyCreatedSailboat.getSkipper().getFirstName());
factory.close();
}
