[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2225) NPE when eager fetching joined component with native SQL query

[shailesh mangal (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32209#action_32209 ] 

shailesh mangal commented on HHH-2225:
--------------------------------------

Ran into the same issue, all I need is a count from another table. Is there any other way to do this? Will interceptor be a good choice?

@Formula("(select count(*) from attachment a where a.item_id = id and a.item_type='xyz')")
	private Integer attachmentCount = null;

> NPE when eager fetching joined component with native SQL query
> --------------------------------------------------------------
>
>                 Key: HHH-2225
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2225
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: query-sql
>    Affects Versions: 3.2.0.ga
>            Reporter: Christian Bauer
>            Priority: Minor
>
> Item -> many-to-one -> User -> joined component -> billingAddress
> This:
>  result = session.createSQLQuery("select {i.*}, {u.*}, {ba.*} from ITEM i" +
>                                         " join USERS u on i.SELLER_ID = u.USER_ID" +
>                                         " left join BILLING_ADDRESS ba on u.USER_ID = ba.USER_ID" +
>                                         " where u.USERNAME = :uname")
>                          .addEntity("i", Item.class)
>                          .addJoin("u", "i.seller")
>                          .addJoin("ba", "u.billingAddress")
> fails with:
> java.lang.NullPointerException
> 	at org.hibernate.loader.DefaultEntityAliases.<init>(DefaultEntityAliases.java:37)
> 	at org.hibernate.loader.custom.sql.SQLQueryReturnProcessor.generateCustomReturns(SQLQueryReturnProcessor.java:283)
> 	at org.hibernate.loader.custom.sql.SQLCustomQuery.<init>(SQLCustomQuery.java:129)
> 	at org.hibernate.engine.query.NativeSQLQueryPlan.<init>(NativeSQLQueryPlan.java:43)
> 	at org.hibernate.engine.query.QueryPlanCache.getNativeSQLQueryPlan(QueryPlanCache.java:114)
> 	at org.hibernate.impl.AbstractSessionImpl.getNativeSQLQueryPlan(AbstractSessionImpl.java:137)
> 	at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:142)
> 	at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:150)

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