cosbor11

// Associate the actors to the movie.  First add the actor unique identifiers to a set //3
Set actorIds = new HashSet<>();
actorIds.add(1);
actorIds.add(2);

manager.saveRelationshipsForEntity(starWarsMovie, "actors", actorIds);

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// The Persistence Manager did not save the actors and associated it to the movie
Movie starWarsAfterSave1 = (Movie) manager.findById(Movie.class, starWarsMovie.movieId);
manager.initialize(starWarsAfterSave1, "actors");
if(starWarsAfterSave1.actors.size() == 2) {
    System.out.println("Actors have been associated!");
}

cosbor11

// Series.java
@Entity
public class Series extends ManagedEntity implements IManagedEntity
{
    @Attribute
    @Identifier
    public String seriesId;

    @Relationship(type = RelationshipType.ONE_TO_MANY,
            cascadePolicy = CascadePolicy.ALL,

cosbor11

// Populate some test data
Series theSopranos = new Series();
theSopranos.seriesId = "SOPRANOS";

Season firstSeason = new Season(1, 1999);
Season secondSeason = new Season(2, 2000);
Season thirdSeason = new Season(3, 2001);
Season fourthSeason = new Season(4, 2002);

// Add the seasons to the sopranos

cosbor11

// Fetch a new copy of the entity so that we can illustrate how eager relationships are fetched
Series theSopranosCopy = (Series)manager.findById(Series.class, theSopranos.seriesId);

// Assert seasons which is an eagerly loaded
assertNotNull("Seasons should be populated because it is eagerly fetched", theSopranosCopy.seasons);
assertTrue("Seasons should be fully populated as an ArrayList", (theSopranosCopy.seasons instanceof ArrayList));

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// Assert the episodes are lazily loaded
firstSeason = theSopranosCopy.seasons.get(0);
assertNotNull("The first seasons' episodes should not be null since it is lazily loaded", firstSeason.episodes);
assertTrue("The first seasons' episodes should be LazyRelationshipCollection", (firstSeason.episodes instanceof LazyRelationshipCollection));

// Notice when I reference an episode it is hydrated
Episode episode = firstSeason.episodes.get(0);

cosbor11

@Entity
public class Book extends ManagedEntity implements IManagedEntity
{
  @Identifier(generator = IdentifierGenerator.SEQUENCE)
  @Attribute
  protected long bookId;

  @Attribute
  protected String title;

cosbor11

// Create test data
Book harryPotter = new Book();
harryPotter.setTitle("Harry Potter, Deathly Hallows");
harryPotter.setDescription("Story about a kid that has abnormal creepy powers that seeks revenge on a poor innocent guy named Voldomort.");
harryPotter.setGenre("CHILDREN");

Book theGiver = new Book();
theGiver.setTitle("The Giver");
theGiver.setDescription("Something about a whole community of color blind people.");
theGiver.setGenre("CHILDREN");

cosbor11

// Create a query to find children's books
// Note: This query has been optimized since the Book#genre attribute is indexed.
QueryCriteria childrenBookCriteria = new QueryCriteria("genre", QueryCriteriaOperator.EQUAL, "CHILDREN");
Query findBooksByGenreQuery = new Query(Book.class, childrenBookCriteria);

List<Book> childrenBooks = manager.executeQuery(findBooksByGenreQuery);
assertEquals("There should be 3 children's books", childrenBooks.size(), 3);

cosbor11

@Entity
public class CallLog extends ManagedEntity implements IManagedEntity
{
  @Attribute
  @Identifier(generator = IdentifierGenerator.SEQUENCE)
  protected long callLogId;
  
  @Attribute
  protected String destinationNumber;