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From "Marc Prud'hommeaux (JIRA)" <j...@apache.org>
Subject [jira] Commented: (OPENJPA-188) Positional parameters (in)order within query and query.setParameter (in)order
Date Wed, 28 Mar 2007 08:54:32 GMT

    [ https://issues.apache.org/jira/browse/OPENJPA-188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12484772
] 

Marc Prud'hommeaux commented on OPENJPA-188:
--------------------------------------------

What is the type of the "rodzajProjektu" field? If it really is the RodzajProjektu entity,
then you cannot compare a String to an Object. If you are wanting to query against a field
(e.g., the id field) of the entity, then you would do "p.rodzajProjektu.someField = ?1".

> Positional parameters (in)order within query and query.setParameter (in)order
> -----------------------------------------------------------------------------
>
>                 Key: OPENJPA-188
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-188
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: query
>    Affects Versions: 0.9.7
>            Reporter: Jacek Laskowski
>
> According to the JPA 1.0 spec - 4.6.4.1 Positional Parameters - p. 90:
> Note that the same parameter can be used more than once in the query string and that
the ordering of the use of parameters within the query string need not conform to the order
of the positional parameters.
> So, keeping it in mind, I can't explain why the following fails:
>    Query query = em.createQuery("SELECT DISTINCT o FROM Osoba o, IN(o.projekty) p WHERE
o.imie LIKE ?2 AND p.rodzajProjektu = ?1");
>    query.setParameter(1, RodzajProjektu.OTWARTY);
>    query.setParameter(2, "J%");
> with the following error:
> -------------------------------------------------------------------------------
> Test set: pl.jaceklaskowski.jpa.chapter4_6.ConditionalExpressionsTest
> -------------------------------------------------------------------------------
> Tests run: 3, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 4.203 sec <<<
FAILURE!
> testPositionalParameters(pl.jaceklaskowski.jpa.chapter4_6.ConditionalExpressionsTest)
Time elapsed: 0.125 sec  <<< FAILURE!
> <4|false|0.9.7-incubating-SNAPSHOT> org.apache.openjpa.persistence.ArgumentException:
The parameter "1" is of type "java.lang.String", but the declaration in the query is for type
> "pl.jaceklaskowski.jpa.entity.RodzajProjektu".
>        at org.apache.openjpa.persistence.QueryImpl.validateParameter(QueryImpl.java:257)
>        at org.apache.openjpa.persistence.QueryImpl.validateParameters(QueryImpl.java:237)
>        at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:218)
>        at org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:264)
>        at pl.jaceklaskowski.jpa.chapter4_6.ConditionalExpressionsTest.testPositionalParameters(ConditionalExpressionsTest.java:115)
> I have tested it out against Hibernate EntityManager 3.3.0.GA and TopLink Essentials
2.0 BUILD 40 and I don't see the trouble there.

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