JDO - a list of rows that are not retrieved from the database

Question

In my class User, I have a field that is a list of strings:

@Persistent
private List<String> openIds;

When I create a new user, I do this:

User user = new User();
user.openIds.add(openid);
pm.makePersistent(user);

When I break after this last line and look, it openIdscontains the openid that I inserted there. But, when I call later User user = pm.getObjectById(User.class, id);with the correct id, the openIds field will be empty.

Does anyone know what can do this?

EDIT: BTW I'm starting in Google App Engine

UPDATE: looking at the data warehouse viewer, I see that openid was stored correctly in the database. Therefore, it simply does not work out correctly ...

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Answer 1

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