November 2007 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-2021) org.hibernate.cache.QueryKey has a fragile equals() method

by Kenny MacLeod (JIRA)

org.hibernate.cache.QueryKey has a fragile equals() method ---------------------------------------------------------- Key: HHH-2021 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2021 Project: Hibernate3 Type: Bug Components: core Versions: 3.1.3 Reporter: Kenny MacLeod Priority: Trivial This one is no great shakes, but the first line of QueryKey.equals() casts the argument to QueryKey without checking for its type. As such, the method is fragile. It should be consistent with CacheKey, which does an instanceof check before the cast. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2442) ClassCastException loading from second level cache

by Marcio Moraes (JIRA)

ClassCastException loading from second level cache -------------------------------------------------- Key: HHH-2442 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2442 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.1, 3.2.2, 3.2.0.ga Environment: Linux 2.6.15-27-686 #1 SMP PREEMPT Fri Dec 8 18:00:07 UTC 2006 i686 GNU/Linux Reporter: Marcio Moraes Priority: Blocker I'm getting a error when using hibernate 3.2.2.ga with cache (JBoss-Cache) cluster. When hibernate get a entity from second level cache it confuses the arrays of values against array of types. So in some situations i got ClassCastException ... Looking up CacheEntry code at assemble method i saw: private static Object[] assemble( final Serializable[] values, final Object result, final Serializable id, final EntityPersister persister, final Interceptor interceptor, final EventSource session) throws HibernateException { //assembled state gets put in a new array (we read from cache by value!) Object[] assembledProps = TypeFactory.assemble( values, persister.getPropertyTypes(), session, result ); The issue is values (Serializeble[]) is in wrong order compared with persister.getPropertyTypes() (Type[]). If only one cache instance is running it doesnt occurs ... I am using Linux. Att, Márcio Moraes -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2926) Patch for Pre*Event inherit AbstractEvent

by Chatellier Eric (JIRA)

Patch for Pre*Event inherit AbstractEvent ----------------------------------------- Key: HHH-2926 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2926 Project: Hibernate3 Issue Type: Patch Components: core Affects Versions: 3.2.5 Environment: 3.2.5.ga; all platform Reporter: Chatellier Eric Attachments: patch.patch Pre*Event classes are only classes that don't implements AbstractEvent. Here is the patch that correct that. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HBX-974) Unable to recreate tables using Hibernate

by sridhar negi (JIRA)

Unable to recreate tables using Hibernate ------------------------------------------ Key: HBX-974 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-974 Project: Hibernate Tools Issue Type: Task Environment: Oracle 9i. Reporter: sridhar negi i m using SchemaUpdate tool of Hibernate.The problem which i m facing is that i had some tables in the database ,now i needed to delete some of the columns from some of the tables. Since UpdateSchema does not allow to delete columns ,i decided to manually drop the those tables from oracle database and recreate those tables. But i m not able to do the same. It tries to fire alter table command, even when there is no such table present in the database..The error whcih i m getting is some thing like this.. [java] alter table POOL_DETAILS add POOL_WEIGHT DOUBLE PRECISION [java] 52085 DEBUG [main] hbm2ddl.SchemaUpdate - execute alter table POOL_DETAILS add POOL_WEIGHT DOUBLE PRECISION [java] 52147 ERROR [main] hbm2ddl.SchemaUpdate - execute Unsuccessful: alter table POOL_DETAILS add POOL_WEIGHT DOUBLE PRECISION [java] 52147 ERROR [main] hbm2ddl.SchemaUpdate - execute ORA-00942: table or view does not exist -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HBX-954) Failing detection of Sequences?

by Vincent Latombe (JIRA)

Failing detection of Sequences? ------------------------------- Key: HBX-954 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-954 Project: Hibernate Tools Issue Type: Bug Environment: Hibernate3 as provided by Seam 1.2.1GA (dunno which subversion) Oracle 10g Reporter: Vincent Latombe Here is my problem : I used reverse engineering to get an entity from a table in a database. I got my entity then I wanted to add a generation for the Id. Fine, I add HIBERNATE_SEQUENCE which is needed then I add the annotation to my entity. I get this : @Id @Column(name = "ID", precision = 22, scale = 0) @GeneratedValue(strategy=GenerationType.SEQUENCE) @NotNull public long getId() { return this.id; } Nothing really difficult. Then I try to deploy my ejb using the validate strategy of hbm2ddl. And it fails because it can't find the sequence ([DatabaseMetadata] table not found: TESTSEAM.hibernate_sequence)... Ok strange. Then I switch to the update strategy... Now I get something interesting. 14:40:12,843 INFO [DatabaseMetadata] table not found: TESTSEAM.hibernate_sequence 14:40:12,843 INFO [DatabaseMetadata] table not found: hibernate_sequence 14:40:12,875 ERROR [SchemaUpdate] Unsuccessful: create sequence TESTSEAM.hibernate_sequence 14:40:12,875 ERROR [SchemaUpdate] ORA-00955: ce nom d'objet existe dÚjÓ 14:40:12,875 INFO [SchemaUpdate] schema update complete It seems that DatabaseMetadata try to lookup a table instead of a sequence, so it can't detect the already existing sequence. So then it tries to create the sequence but it already exists. Any clue? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2958) Incomplete/non-informative javadocs for events system

by Jacob L E Blain Christen (JIRA)

Incomplete/non-informative javadocs for events system ----------------------------------------------------- Key: HHH-2958 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2958 Project: Hibernate3 Issue Type: Task Components: documentation Affects Versions: 3.2.5, 3.2.4.sp1, 3.2.4, 3.2.3, 3.2.2, 3.2.1, 3.2.0.ga, 3.2.0.cr5, 3.2.0.cr4, 3.2.0.cr3, 3.2.0.cr2, 3.2.0 cr1, 3.1.3, 3.2.0.alpha2, 3.2.0.alpha1, 3.1.2, 3.1.1, 3.1, 3.1 rc3, 3.1 rc2, 3.1 rc 1, 3.1 beta 2, 3.1 beta 1, 3.0.5 Reporter: Jacob L E Blain Christen Priority: Minor See also HHH-1942. As per the documentation at http://www.hibernate.org/hib_docs/v3/api/org/hibernate/event/PreUpdateEve... (as an example) and HHH-1942 I most definately do not consider <pre><code>org.hibernate.event Interface PreUpdateEventListener All Superinterfaces: Serializable All Known Implementing Classes: JACCPreUpdateEventListener public interface PreUpdateEventListener extends Serializable Called before updating the datastore Author: Gavin King Method Summary boolean onPreUpdate(PreUpdateEvent event) Method Detail onPreUpdate public boolean onPreUpdate(PreUpdateEvent event)</code></pre> to be "documented" in any meaningful sense. It would be terrific if the event system javadocs as a whole were on par with the quality of the core hibernate javadocs. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2419) Link wiki articles in reference

by Diego Pires Plentz (JIRA)

Link wiki articles in reference ------------------------------- Key: HHH-2419 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2419 Project: Hibernate3 Type: Improvement Reporter: Diego Pires Plentz For example, "Open Session in View" should link to http://hibernate.org/43.html. It helps the users to find relevant information - and google, to index the files ;-) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2463) ClassCastException when Hibernate tries to cache results using ResultTransformer

by Peak user (JIRA)

ClassCastException when Hibernate tries to cache results using ResultTransformer -------------------------------------------------------------------------------- Key: HHH-2463 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2463 Project: Hibernate3 Type: Bug Versions: 3.2.2 Reporter: Peak user When Hibernate executes a cacheable query using a ResultTransformer, it will attempt to cache the results AFTER applying the ResultTransformer. The problem is that the ResultTransformer may modify the data in a way that Hibernate won't understand it anymore, and in this case it will generate a ClassCastException when trying to cache it. This problem could be easily solved if Hibernate cached results before applying the ResultTransformer instead of afterwards. Here's a sample code to reproduce this problem: class ToMapResultTransformer implements ResultTransformer { private String[] properties; public ToMapResultTransformer(String[] properties) { this.properties = properties; } public List transformList(List collection) { return collection; } public Object transformTuple(Object[] tuple, String[] aliases) { Map<String,Object> result = new HashMap<String,Object>(tuple.length); for (int i=0; i<tuple.length; i++) { result.put((properties != null ? properties[i] : aliases[i]), tuple[i]); } return result; } } Criteria sqlCriteria = createSqlCriteria(session); sqlCriteria.setProjection(projections); sqlCriteria.setCacheable(true); sqlCriteria.setResultTransformer(new ToMapResultTransformer(properties)); sqlCriteria.list(); The code above produces the following exception: java.lang.ClassCastException: java.util.HashMap at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:83) at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2185) at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2129) at org.hibernate.loader.Loader.list(Loader.java:2087) at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:94) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1569) at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:283) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2525) Bug when using a ResultTransformer on a cached query

by Sebastien Cesbron (JIRA)

Bug when using a ResultTransformer on a cached query ---------------------------------------------------- Key: HHH-2525 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2525 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.2 Environment: Firebird 2.0 on Win XP Reporter: Sebastien Cesbron Attachments: testhib.zip Using a distinct result transformer which a cached like this : query = session.createQuery("select obj from ObjetTest obj left outer join fetch obj.children as obj_0 order by obj.id asc"); query.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); query.setCacheable(true); query.list(); This leads to this exception 2007-03-21 14:28:20,589 ERROR : IllegalArgumentException in class: ObjetTest, getter method of property: oid Exception in thread "main" org.hibernate.PropertyAccessException: IllegalArgumentException occurred calling getter of ObjetTest.oid at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:171) at org.hibernate.tuple.entity.AbstractEntityTuplizer.getIdentifier(AbstractEntityTuplizer.java:183) at org.hibernate.persister.entity.AbstractEntityPersister.getIdentifier(AbstractEntityPersister.java:3524) at org.hibernate.persister.entity.AbstractEntityPersister.isTransient(AbstractEntityPersister.java:3240) at org.hibernate.engine.ForeignKeys.isTransient(ForeignKeys.java:181) at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:218) at org.hibernate.type.ManyToOneType.disassemble(ManyToOneType.java:163) at org.hibernate.cache.StandardQueryCache.put(StandardQueryCache.java:80) at org.hibernate.loader.Loader.putResultInQueryCache(Loader.java:2118) at org.hibernate.loader.Loader.listUsingQueryCache(Loader.java:2062) at org.hibernate.loader.Loader.list(Loader.java:2020) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) at Test.main(Test.java:33) Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.hibernate.property.BasicPropertyAccessor$BasicGetter.get(BasicPropertyAccessor.java:145) ... 16 more It seems this is due to a difference in QueryLoader.getResultColumnOrRow. In this method there is a test : else if ( !hasTransform ) { return row.length == 1 ? row[0] : row; } This causes the method to return an instance of ObjetTest in one case and an instance of ObjetTest[1] in the other one. In the latter test, when putting the query into the query cache, hibernate calls the getOid method on an array of ObjetTest and this causes the exception -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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[Hibernate-JIRA] Created: (HHH-2604) Isolator.JdbcDelegate masks the exception if it isn't possible to open a connection.

by Tushar (JIRA)

Isolator.JdbcDelegate masks the exception if it isn't possible to open a connection. ------------------------------------------------------------------------------------ Key: HHH-2604 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2604 Project: Hibernate3 Issue Type: Bug Affects Versions: 3.2.4 Environment: Hibernate 3.2.2ga Reporter: Tushar Priority: Minor A defect in Isolator.JdbcDelegate makes it throw the wrong exception - a NullPointerException - that masks the true exception. In my case it was an UnsupportedOperationException("The user must supply a JDBC connection"). The trouble is at the start of Isolator.JdbcDelegate.delegateWork(...): {code} 174 public void delegateWork(IsolatedWork work, boolean transacted) throws HibernateException { 175 Connection connection = null; 176 boolean wasAutoCommit = false; 177 try { 178 connection = session.getBatcher().openConnection(); {code} If there is a failure opening a connection on line 178, the finally clause is executed. The finally clause needs the connection, which of course is null :-) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira

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hibernate-issues November 2007