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  Forum: MetaData : XML/Annotations
  Thread: JDO2 maxFetchDepth issue

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Male sidney
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China
Joined: Mar 3, 2010
Post Count: 5
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confused JDO2 maxFetchDepth issue
Hi expert,

There 3 classes, referencing the following code


@PersistenceCapable(identityType = IdentityType.APPLICATION, table = "ADDRESS")
public class Address {
......
}

@PersistenceCapable(identityType = IdentityType.APPLICATION, table = "ACCOUNT")
public class Account {

@Persistent(primaryKey = "true", column = "ACCOUNT_ID", valueStrategy = IdGeneratorStrategy.IDENTITY)
private long accountId;

@Persistent(name = "addresses", defaultFetchGroup = "true")
@Column(name = "ACCOUNT_ID")
private Set<Address> addresses = new HashSet<Address>();
......
}

@PersistenceCapable(identityType = IdentityType.APPLICATION, table = "USER")
public class User {
......
@Persistent(name = "account", persistenceModifier = PersistenceModifier.PERSISTENT, column = "ACCOUNT_ID", defaultFetchGroup = "true")
private Account account;
.....
}


The field account in User and addresses in Account use the default fetch group.

When retrieving Account, the field addresses in Account will be retrieved immediately. But when retrieving User, the field addresses will be changed to lazy load.

And I also try to config the fetch plan in User like following

@FetchGroup(name="group_1", members=@Persistent(name="account"))
@FetchPlan(name="plan_1", maxFetchDepth=3, fetchGroups="group_1")


However, the addresses is also lazyload, when retrieving User.
And the attribute 'recursionDepth' in '@Persistent' is also not work.

I want to get addresses immediately, when retrieving User.

How to do?

Best Regards,
Sidney
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