Friendship afterSave business logic

gistfile1.txt

@Asset( "Friendship" )
public class FriendshipTableEventHandler extends com.backendless.servercode.extension.PersistenceExtender<Friendship>
{
    @Override
    public void afterCreate( RunnerContext context, Friendship friendship, ExecutionResult<Friendship> result ) throws Exception
    {
        if (!friendship.getGroup()) {
            BackendlessUser user = friendship.getMembers().get(0);
            BackendlessUser friend = friendship.getMembers().get(1);
            updateFriendsForUser(user, friend);
//            updateFriendsForUser(friend, user);
        }
    }

    public void updateFriendsForUser(BackendlessUser user, BackendlessUser friend) {

        Object[] obj = (Object[]) user.getProperty("friends");

        if (obj.length > 0) {
            BackendlessUser[] currentFriends = (BackendlessUser[]) obj;
            ArrayList<BackendlessUser> updatedList = new ArrayList<BackendlessUser>();

            updatedList.addAll(Arrays.asList(currentFriends));
            updatedList.add(friend);
            user.setProperty("friends", updatedList);

            Backendless.UserService.update(user);
        } else {
            ArrayList<BackendlessUser> newList = new ArrayList<BackendlessUser>();
            newList.add(friend);
            user.setProperty("friends", newList);

            Backendless.UserService.update(user);
        }
    }

}