builder.prototype().contacts().get().add( contactBuilder.newInstance() );
jackDoe.contacts().set( builder.newInstance() );
annDoe.husband().set( jackDoe );
PetEntity rex = uow.newEntity( PetEntity.class );
setName( rex, "Rex" );
rex.changeOwner( jackDoe );
rex.updateDescription( "Rex is a great dog" );
PetEntity kitty = uow.newEntity( PetEntity.class );
setName( kitty, "Kitty" );
kitty.changeOwner( annDoe );
domains.add( gaming );
domains.add( programming );
domains.add( cooking );
domains.add( cars );