Hibernate lazy loading modifying values

Question

I'm working on extending a REST API written in Java using the Spring framework, Hibernate ORM and Jackson for JSON (de)serialization.

On a few API calls, I need to return a user's account given a provided value (say, a subscription ID). There are different types of accounts, so a type value is included so the client can determine what kind of account they're dealing with.

In my controller, I pass the provided user ID down to the service call which calls this method:

public Account getAccountBySubscriptionId(long subscriptionId) {
    ServiceSubscription subscription = subscriptionDAO.load(subscriptionId);
    if(subscription != null) {
        return subscription.getAccount();
    } else {
        return null;
    }
}

I would expect this to return JSON similar to this:

{
    "type":"account_type_goes_here",
    "id":1,
    "accountNumber":"100"
}

However, it appears that Hibernate's lazy loading is modifying the type value, as such (note that UserAccount is the class of the object):

{
     "type":"UserAccount_$$_javassist_1",
     "id":2,
     "accountNumber":"37"
}

How could I make Hibernate retain the original value for type instead of modifying it?

Robert Gannon · Accepted Answer · 2013-05-22 13:45:13Z

2

Are you sure there isn't an error in your logic that's returning the type of the object and not the string value of the type of the account?

answered May 22, 2013 at 13:45

Robert Gannon

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2 Comments

Ryan Morrison Over a year ago

I don't think so - similar code is used elsewhere which returns the account type as expected. I'll double check that though.

Ryan Morrison Over a year ago

You were right - there was some weird logic in the model causing this. Thanks!

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