[Hibernate-JIRA] Created: (HHH-2085) org.hibernate.event.def.DefaultLoadEventListener logs exception at info level
by Don Smith (JIRA)
org.hibernate.event.def.DefaultLoadEventListener logs exception at info level
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Key: HHH-2085
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2085
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.0.cr2
Environment: Hibernate 3.2.0.cr2, MySQL 4.0.18
Reporter: Don Smith
Priority: Minor
Prior to schema generation, accessing a persistent object throws an exception, as expected. The org.hibernate.event.def.DefaultLoadEventListener logs the exception at the info level, which just adds noise to the application console, and prevents application exception handling (in my case it's valid if the table doesn't exist, so I just want to catch the exception and continue). This log statement should be removed, or moved to a debug or trace level, so it won't show up in normal execution.
Code, from line 94 of org.hibernate.event.def.DefaultLoadEventListener:
catch(HibernateException e) {
log.info("Error performing load command", e);
throw e;
}
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12 years, 9 months
[Hibernate-JIRA] Created: (HHH-5964) IllegalArgumentException (Parameter value ... was not matching type ...) for JPA-Query: Worked with 3.3.1.GA
by Sebastian Hasait (JIRA)
IllegalArgumentException (Parameter value ... was not matching type ...) for JPA-Query: Worked with 3.3.1.GA
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Key: HHH-5964
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5964
Project: Hibernate Core
Issue Type: Bug
Components: entity-manager
Affects Versions: 3.6.1
Reporter: Sebastian Hasait
We have switched from core-3.3.1.GA and entity-manager-3.4.0.GA to 3.6.1.Final.
Now some queries stopped working.
This is caused by an additional type check in org.hibernate.ejb.AbstractQueryImpl#registerParameterBinding@359 which does not care about hibernate-proxies. This method is called from QueryImpl#setParameter(...). This call doesn't exist in 3.4.0.GA.
I think the proxies should be as transparent as possible. So if I get a proxy from some relation getter and put this into a query as parameter, there should be no exception.
Because the proxy cannot know the concrete type without initializing the proxy-target (reading discriminator from database) there remain four solutions:
1.) Hibernate is not checking the type for proxies OR only ensures expected type and proxy-type are related.
2.) Hibernate initializes the parameter and the type checking works without exception.
3.) Our DAO initializes the parameter before passing.
4.) We rewrite our queries to pass only the PK
I would prefer 1 or 2. :-)
Will attach test case asap.
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12 years, 9 months
[Hibernate-JIRA] Created: (HHH-5858) Cannot load entities with Clob or Lob properties into stateless sessions
by James Roper (JIRA)
Cannot load entities with Clob or Lob properties into stateless sessions
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Key: HHH-5858
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5858
Project: Hibernate Core
Issue Type: Bug
Components: core
Affects Versions: 3.5.1
Reporter: James Roper
I have a an entity with a Clob property:
{code:java}
@Lob
private Clob clobProperty;
{code}
When I try and load it in a stateless session, I get:
{noformat}
Exception in thread "main" java.lang.ClassCastException: org.hibernate.impl.StatelessSessionImpl cannot be cast to org.hibernate.engine.jdbc.LobCreationContext
at org.hibernate.Hibernate.getLobCreator(Hibernate.java:420)
at org.hibernate.type.ClobType.nullSafeGet(ClobType.java:114)
at org.hibernate.type.AbstractType.hydrate(AbstractType.java:105)
at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2267)
at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1423)
at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1351)
at org.hibernate.loader.Loader.getRow(Loader.java:1251)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:619)
at org.hibernate.loader.Loader.loadSingleRow(Loader.java:307)
at org.hibernate.impl.ScrollableResultsImpl.prepareCurrentRow(ScrollableResultsImpl.java:254)
at org.hibernate.impl.ScrollableResultsImpl.next(ScrollableResultsImpl.java:123)
{noformat}
If Lobs in stateless sessions isn't supported, then at very least an error message to that effect should be thrown and the docs should be updated to reflect this, but I don't see why that should be the case, especially considering that both Lobs and stateless session both serve very similar purposes, they are for use when dealing with large datasets that may not fit in memory, and so could well be used together.
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12 years, 9 months
[Hibernate-JIRA] Created: (HHH-4808) SessionImpl.initializeCollection() does not release JDBC connection (if outside of a transaction)
by Martin Renner (JIRA)
SessionImpl.initializeCollection() does not release JDBC connection (if outside of a transaction)
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Key: HHH-4808
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4808
Project: Hibernate Core
Issue Type: Bug
Components: core
Affects Versions: 3.3.2, 3.2.7
Reporter: Martin Renner
Priority: Critical
With {{ConnectionReleaseMode.AFTER_TRANSACTION}} (the default), Hibernate does not release the JDBC connection when resolving a lazily loaded collection, if this happens *outside* of an active transaction.
First, I will describe, what happens if Hibernate executes a query outside of a transaction. Then I will describe how lazy collection loading behaves differently.
When the method {{list}} of a query ({{QueryImpl.java}}) is getting called, Hibernate delegates to {{SessionImpl.list()}}. After having loaded the list, {{SessionImpl.list()}} calls {{SessionImpl.afterOperation()}}, which calls {{jdbcContext.afterNontransactionalQuery()}} (as there is no active transaction). This leads to {{ConnectionManager.afterTransaction()}} which releases the JDBC connection. This is exactly what I expect to happen.
Now to the lazily loaded collection:
{{Hibernate.initialize(collection)}} and {{person.getPets().size()}} both end up in {{SessionImpl.initializeCollection()}}. This call gets dispatched down to {{Loader.doQueryAndInitializeNonLazyCollections()}} and {{Loader.doQuery()}}. The important fact is, that {{ConnectionManager.afterTransaction()}} never gets called (like in the query-example above).
The result is, that the JDBC connection is not released.
IMHO resolving of a lazily loaded collection should behave like executing a query. {{SessionImpl.initializeCollection()}} should call {{SessionImpl.afterOperation()}} in the same way as {{SessionImpl.list()}} is doing this.
I will attach a small demo application which shows the difference (concerning {{ConnectionManager}}) between queries and collections.
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12 years, 9 months
[Hibernate-JIRA] Created: (EJB-361) Query#setParameter(int position, Object value) wrong implementation
by Fabrice Daugan (JIRA)
Query#setParameter(int position, Object value) wrong implementation
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Key: EJB-361
URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-361
Project: Hibernate Entity Manager
Issue Type: Bug
Components: EntityManager
Affects Versions: 3.3.2.GA
Reporter: Fabrice Daugan
The Hibernate JPA javax.persistence.Query#setParameter(int position, Object value) implementation does not suit to the JPA specicafication.
Indeed, the actual integer passed to the operation is converted to String by Hibernate and then used to find the named parameter.
Please have a look to the folowing stack trace :
java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.IllegalArgumentException:
org.hibernate.QueryParameterException: could not locate named parameter [1]
at org.hibernate.ejb.QueryImpl.setParameter(QueryImpl.java:185)
at org.hibernate.ejb.QueryImpl.setParameter(QueryImpl.java:240)
at org.springframework.orm.jpa.JpaTemplate$9.doInJpa(JpaTemplate.java:316)
To repoduce this error :
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12 years, 9 months