[OPENJPA-75] error message for missing query id var needs improvement

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.3.0
• Component/s: query
• Assignee: Pinaki Poddar
• Reporter: David Wisneski
• Created: 06/Nov/06 19:18
• Updated: 22/Apr/10 20:32
• Resolved: 01/Aug/08 20:05

Description

the query is
select sum(loginCount), sum(logoutCount) from AccountEntity as a where a.accountProfile.userID like 'uid:%'
loginCount and logoutCount are declared in a MappedSuperClass.
the correct query is
select sum(a.loginCount), sum(a.logoutCount) from AccountEntity as a where a.accountProfile.userID like 'uid:%'

Rather than a syntax error, a ArgumentException was thrown. (see below)

Also the user would like to see a better error message in the case of a field name using wrong upper/lower case.
In other words, if the query was
where a.userid = ...
and what he intended was
where a.userId = ...
then the message should say " userid undefined. DId you mean userId? "

Also if a state field is inherited but declared private and hence not visible, then error message should read
"a.userId invalid because it is not visible" rather than "a.userId not defined".

<4|false|0.9.0-incubating-SNAPSHOT> org.apache.openjpa.persistence.ArgumentException: null
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O <4|false|0.9.0-incubating-SNAPSHOT> org.apache.openjpa.persistence.ArgumentException: null
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:755)
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:716)
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:712)

[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:512)
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:216)
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.openjpa.persistence.QueryImpl.getSingleResult(QueryImpl.java:271)
[11/3/06 12:47:04:734 CST] 0000003c SystemOut O at org.apache.geronimo.samples.daytrader.ejb3.TradeJPA.resetTrade(TradeJPA.java:1864)

while running a JPA query. The code for it looks like the following:
q = em.createQuery("select sum(loginCount), sum(logoutCount) from AccountEntity as a where a.accountProfile.userID like 'uid:%'");
Object[] rs = (Object[]) q.getSingleResult();