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Posted to dev@openjpa.apache.org by "Dominik Stadler (JIRA)" <ji...@apache.org> on 2010/12/06 20:07:10 UTC
[jira] Created: (OPENJPA-1903) Some queries only work the first
time they are executed
Some queries only work the first time they are executed
-------------------------------------------------------
Key: OPENJPA-1903
URL: https://issues.apache.org/jira/browse/OPENJPA-1903
Project: OpenJPA
Issue Type: Bug
Components: query
Affects Versions: 2.0.1
Reporter: Dominik Stadler
I have a problem in my application where a query that sometimes returns data and sometimes not.
I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
@Entity
@IdClass(MandantAndNameIdentity.class)
public class Website {
@Id
private String mandant;
@Id
private String name;
...
}
@Entity
@IdClass(WebsiteProduktDatumIdentity.class)
public class Preis {
@Id
@ManyToOne(cascade = CascadeType.MERGE)
private Website website;
@Id
@Basic
private String datum;
...
}
I use the following to set up a website and a Preis:
em.getTransaction().begin();
Website website = em.merge(new Website("Mandant", "Website"));
em.merge(new Preis(website, DATUM));
em.getTransaction().commit();
Afterwards, if I run the query as follows:
TypedQuery<Preis> q = em.createQuery(
"select m from Preis m " +
"where m.website.name = :website ", Preis.class);
q.setParameter("website", website.getName());
this query works all the time, note that it uses website.name for matching, not the full Website-object.
However if I put the query as
TypedQuery<Preis> q = em.createQuery(
"select m from Preis m " +
"where m.website = :website ", Preis.class);
q.setParameter("website", website);
it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
Discussion on the mailinglist seems to indicate that this is a bug.
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[jira] Issue Comment Edited: (OPENJPA-1903) Some queries only work
the first time they are executed
Posted by "Dominik Stadler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969900#action_12969900 ]
Dominik Stadler edited comment on OPENJPA-1903 at 12/9/10 2:49 PM:
-------------------------------------------------------------------
I tried todays snapshot build labeled openjpa-2.2.0-20101209.084750-4.jar but my standalone testcase still fails with the same error.
I also tried to check out the source and add a testcase to the exsiting TestQueryCache testcase. Strangely there it works, although I use the same settings in the Entities and the same test-code! What could be the difference here? I see the following warning when running TestQueryCache, which might be related but which I cannot make much sense of:
"Query "select m from Child m where m.parent = :parent " is removed from cache excluded permanently. Query "select m from Child m where m.parent = :parent " is not cached because its result is not obtained by executing a select statement. This can happen if the query was evaluated in-memory. The result was provided by org.apache.openjpa.datacache.QueryCacheStoreQuery$CachingResultObjectProvider. ."
was (Author: centic):
I tried todays snapshot build labeled openjpa-2.2.0-20101209.084750-4.jar but my standalone testcase still fails with the same error.
I also tried to check out the source and add a testcase to the exsiting TestQueryCache testcase. Strangely there it works, although I use the same settings in the Entities and the same test-code! What could be the difference here? I see the following warning when running TestQueryCache, which might be related but which I cannot make much sense of:
{code]
Query "select m from Child m where m.parent = :parent " is removed from cache excluded permanently. Query "select m from Child m where m.parent = :parent " is not cached because its result is not obtained by executing a select statement. This can happen if the query was evaluated in-memory. The result was provided by org.apache.openjpa.datacache.QueryCacheStoreQuery$CachingResultObjectProvider. .
{code}
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
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[jira] Assigned: (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Pinaki Poddar (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Pinaki Poddar reassigned OPENJPA-1903:
--------------------------------------
Assignee: Pinaki Poddar
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
--
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[jira] [Updated] (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Michael Dick (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Dick updated OPENJPA-1903:
----------------------------------
Fix Version/s: 2.2.0
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
> Fix For: 2.2.0
>
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
--
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[jira] [Resolved] (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Albert Lee (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Albert Lee resolved OPENJPA-1903.
---------------------------------
Resolution: Fixed
Confirmed with Pinaki, this issues is completed and can be closed.
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
> Fix For: 2.2.0
>
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
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[jira] Commented: (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Pinaki Poddar (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969059#action_12969059 ]
Pinaki Poddar commented on OPENJPA-1903:
----------------------------------------
If your environment permits, try recent SVN commit r1043221 [1] on trunk.
If it does not, will suggest alternative, non-kosher way to test if the proposed change resolves the reported probiem.
It is a bug.
[1] http://openjpa.208410.n2.nabble.com/svn-commit-r1043221-openjpa-trunk-openjpa-jdbc-src-main-java-org-apache-openjpa-jdbc-kernel-Prepareda-td5813517.html
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
--
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[jira] Commented: (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Dominik Stadler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12969900#action_12969900 ]
Dominik Stadler commented on OPENJPA-1903:
------------------------------------------
I tried todays snapshot build labeled openjpa-2.2.0-20101209.084750-4.jar but my standalone testcase still fails with the same error.
I also tried to check out the source and add a testcase to the exsiting TestQueryCache testcase. Strangely there it works, although I use the same settings in the Entities and the same test-code! What could be the difference here? I see the following warning when running TestQueryCache, which might be related but which I cannot make much sense of:
{code]
Query "select m from Child m where m.parent = :parent " is removed from cache excluded permanently. Query "select m from Child m where m.parent = :parent " is not cached because its result is not obtained by executing a select statement. This can happen if the query was evaluated in-memory. The result was provided by org.apache.openjpa.datacache.QueryCacheStoreQuery$CachingResultObjectProvider. .
{code}
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
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[jira] Commented: (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Dominik Stadler (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12968428#action_12968428 ]
Dominik Stadler commented on OPENJPA-1903:
------------------------------------------
setting a query-hint to disable caching makes the query run correctly multiple times:
q.setHint(QueryHints.HINT_IGNORE_PREPARED_QUERY, queryString);
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
--
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[jira] [Closed] (OPENJPA-1903) Some queries only work the first
time they are executed
Posted by "Albert Lee (Closed) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/OPENJPA-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Albert Lee closed OPENJPA-1903.
-------------------------------
> Some queries only work the first time they are executed
> -------------------------------------------------------
>
> Key: OPENJPA-1903
> URL: https://issues.apache.org/jira/browse/OPENJPA-1903
> Project: OpenJPA
> Issue Type: Bug
> Components: query
> Affects Versions: 2.0.1
> Reporter: Dominik Stadler
> Assignee: Pinaki Poddar
> Fix For: 2.2.0
>
>
> I have a problem in my application where a query that sometimes returns data and sometimes not.
> I have reduced it to the code as much as I could into an Eclipse project available at http://ubuntuone.com/p/S9n/
> This happens with OpenJPA 2.0.1 as well as the daily snapshot from 2010-12-05 and an out-of-process Derby database.
> Basically I have two Entities which both use multiple Ids to produce the Primary Key, "Preis" contains a foreign key on "Website":
> @Entity
> @IdClass(MandantAndNameIdentity.class)
> public class Website {
> @Id
> private String mandant;
>
> @Id
> private String name;
> ...
> }
> @Entity
> @IdClass(WebsiteProduktDatumIdentity.class)
> public class Preis {
> @Id
> @ManyToOne(cascade = CascadeType.MERGE)
> private Website website;
> @Id
> @Basic
> private String datum;
> ...
> }
> I use the following to set up a website and a Preis:
> em.getTransaction().begin();
> Website website = em.merge(new Website("Mandant", "Website"));
> em.merge(new Preis(website, DATUM));
>
> em.getTransaction().commit();
> Afterwards, if I run the query as follows:
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website.name = :website ", Preis.class);
> q.setParameter("website", website.getName());
> this query works all the time, note that it uses website.name for matching, not the full Website-object.
> However if I put the query as
> TypedQuery<Preis> q = em.createQuery(
> "select m from Preis m " +
> "where m.website = :website ", Preis.class);
> q.setParameter("website", website);
> it only works ONCE and then does not return any results any more!! See testcase DataAccessVerifyTest for details.
> Discussion on the mailinglist seems to indicate that this is a bug.
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