public EventBean lookup(int id) throws DAOException {
try {
return factory.lookup(id);
} catch (RollbackException e) {
throw new DAOException(e);
}
}
public synchronized Course lookup(String courseName) throws MyDAOException {
try {
return factory.lookup(courseName);
} catch (RollbackException e) {
throw new MyDAOException(e);
}
}
public UserBean lookup(String userID) throws DAOException {
try {
return factory.lookup(userID);
} catch (RollbackException e) {
throw new DAOException(e);
}
}
public Community lookup(String name) throws DAOException {
try {
Community comm = factory.lookup(name);
return comm;
} catch (RollbackException e) {
throw new DAOException(e);
}
}
public void updateUserCount(int x, String name) throws DAOException {
try {
Transaction.begin();
Community comm = factory.lookup(name);
comm.setUserCount(comm.getUserCount() + x);
Transaction.commit();
} catch (RollbackException e) {
throw new DAOException(e);
} finally {
if (Transaction.isActive()) Transaction.rollback();
}
}
public void setEvent(int eventid, String userid) throws DAOException {
try {
Transaction.begin();
UserBean dbUser = factory.lookup(userid);
if (dbUser == null) {
throw new DAOException("User " + userid + " no longer exists");
}
dbUser.seteventAttendingID(eventid);
Transaction.commit();
} catch (RollbackException e) {
throw new DAOException(e);
} finally {
if (Transaction.isActive()) Transaction.rollback();
}
}
public void delete(int id, String owner) throws DAOException {
try {
Transaction.begin();
EventBean p = factory.lookup(id);
if (p == null) {
throw new DAOException("Event does not exist: id=" + id);
}
if (!owner.equals(p.getUserId())) {
throw new DAOException("Event not owned by " + owner);
}
factory.delete(id);
Transaction.commit();
} catch (RollbackException e) {
throw new DAOException(e);
} finally {
if (Transaction.isActive()) Transaction.rollback();
}
}