[Hibernate-JIRA] Created: (ANN-682) @ForeignKey override of @MappedSuperclass
by Christian Bauer (JIRA)
@ForeignKey override of @MappedSuperclass
-----------------------------------------
Key: ANN-682
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-682
Project: Hibernate Annotations
Issue Type: New Feature
Components: binder
Reporter: Christian Bauer
Put this @ManyToOne in a @MappedSuperclass:
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "CREATED_BY_USER_ID", nullable = false)
// Ideally this foreign key should be ON DELETE SET NULL, however...
// Hibernate can't rename these so subclasses would get the same FK constraint name. This doesn't
// work, so we need to let Hibernate create a random identifier for these. We could fix this in the
// DatabaseObjects.hbm.xml file but we can't even address it because the name is random. This sucks.
// So we do a manual SET NULL|DEFAULT when userHome.remove() is called.
// @org.hibernate.annotations.ForeignKey(name = "FK_WIKI_NODE_CREATED_BY_USER_ID")
protected User createdBy;
Now all subclasses get that foreign key constraint name in the database catalog, which isn't possible - constraint names have to be unique.
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15 years, 7 months
[Hibernate-JIRA] Created: (HHH-3339) Query cache stops working after object save
by Alex Oleynikov (JIRA)
Query cache stops working after object save
-------------------------------------------
Key: HHH-3339
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3339
Project: Hibernate3
Issue Type: Bug
Components: caching (L2)
Affects Versions: 3.2.6
Environment: Hibernate 3.2.6, MS SQL 2005 Database. Windows XP SP2
Reporter: Alex Oleynikov
It seems like HB Query cache stops working as soon as given object type is being saved (it does not matter if it was save to existing object or insert of new object instance).
The code looks like this. Where User is just a primitive POJO with couple of properties.
// #1
query = session.createQuery("from User where userID = :id");
query.setCacheable(true);
query.setParameter("id", 10);
user = (User) query.list().get(0);
// #2
query = session.createQuery("from User where userID = :id");
query.setCacheable(true);
query.setParameter("id", 10);
user = (User) query.list().get(0);
// insert new User object
user = new User();
user.setUserID((int)(Math.random() * Integer.MAX_VALUE));
user.setUserName("Ten");
session.beginTransaction();
session.save(user);
session.getTransaction().commit();
// #3
query = session.createQuery("from User where userID = :id");
query.setCacheable(true);
query.setParameter("id", 10);
user = (User) query.list().get(0);
// #4
query = session.createQuery("from User where userID = :id");
query.setCacheable(true);
query.setParameter("id", 10);
user = (User) query.list().get(0);
>From MS SQL Profiler I can clearly see that no queries is executed for #2 (e.g. it hit the cache), but queries are executed for #3 and #4. From HB debug log I see following:
For #2 Query (cache is hit) - correct:
06:54:25,337 DEBUG StandardQueryCache:102 - checking cached query results in region: org.hibernate.cache.StandardQueryCache
06:54:25,337 DEBUG StandardQueryCache:156 - Checking query spaces for up-to-dateness: [USERS]
06:54:25,337 DEBUG StandardQueryCache:117 - returning cached query results
During User insert:
06:54:25,368 DEBUG UpdateTimestampsCache:65 - Invalidating space [USERS], timestamp: 4967466866147328
For #3 Query:
06:54:25,368 DEBUG StandardQueryCache:156 - Checking query spaces for up-to-dateness: [USERS]
06:54:25,368 DEBUG UpdateTimestampsCache:86 - [USERS] last update timestamp: 4967466866147328, result set timestamp: 4967466865061888
06:54:25,368 DEBUG StandardQueryCache:113 - cached query results were not up to date
For #4 Query (or any subsequent query for this matter):
06:54:25,368 DEBUG StandardQueryCache:156 - Checking query spaces for up-to-dateness: [USERS]
06:54:25,368 DEBUG UpdateTimestampsCache:86 - [USERS] last update timestamp: 4967466866147328, result set timestamp: 4967466865061888
06:54:25,368 DEBUG StandardQueryCache:113 - cached query results were not up to date
Please note the timestamp numbers for #4 query - even though I would expect query to be re-cached in #3, it still shows old timestamp. So I may think that when re-caching a query it does not update cache entry timestamp which is not up-to-date due to save().
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15 years, 7 months
[Hibernate-JIRA] Created: (HHH-3407) @TableGenerator does not increment pkColumnValue by allocationSize
by Dan Ciarniello (JIRA)
@TableGenerator does not increment pkColumnValue by allocationSize
------------------------------------------------------------------
Key: HHH-3407
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3407
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.6, 3.2.4
Environment: JBoss 4.2.3, RHEL4, JDK1.5
Reporter: Dan Ciarniello
According to the JPA, the allocationSize attribute to @TableGenerator is "The amount to increment by when allocating id numbers from the generator" but the value is actually incremented by 1 regardless of allocationSize. The id is generated properly apparently according to the formula
id = lastkeyval*allocationSize + i where 0<i<allocationSize
The problems with this algorithm are:
1. One cannot tell what the next key value range is from the key table without knowing the allocationSize (minor)
2. If the allocationSize is reduced, already existing key values will be generated (major)
3. If two applications are configured with different allocation sizes, there will be an overlap in generated values (major)
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15 years, 7 months
[Hibernate-JIRA] Created: (HHH-3709) Add StartRevision/EndRevison fileds to audit tables
by jason shi (JIRA)
Add StartRevision/EndRevison fileds to audit tables
---------------------------------------------------
Key: HHH-3709
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3709
Project: Hibernate Core
Issue Type: Improvement
Components: envers
Affects Versions: 3.4
Reporter: jason shi
In Envers audit tables(eg:Person_Aud), two fields added:REV,REVTYPE
When retrieve data at special REV, a sql with subselect executed:
select a.id, a.REV, a.REVTYPE, a.name, a.surname, a.address_id
from Person_AUD a
where a.REVTYPE <> ? and a.id = ?
and a.REV = (select max(b.REV) from Person_AUD b where b.REV <= ? and a.id = b.id)
The sql performance is poor.
I suggest adding StartRevision/EndRevison fileds to the audit tables,replace the REV field.
The StartRevision equals the original REV field,EndRevision will be filledd when this record changed in next Revision.
The new query sql will like this:
select a.id, a.REV, a.REVTYPE, a.name, a.surname, a.address_id
from Person_AUD a
where a.REVTYPE <> ? and a.id = ?
and a.StartRevision<=? and a.EndRevision>?
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15 years, 7 months
[Hibernate-JIRA] Created: (HHH-4769) In HQL, function ROUND always returns an Integer, it truncate the decimal part of Double number.
by Andrea Tunesi (JIRA)
In HQL, function ROUND always returns an Integer, it truncate the decimal part of Double number.
------------------------------------------------------------------------------------------------
Key: HHH-4769
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-4769
Project: Hibernate Core
Issue Type: Bug
Components: core, entity-manager, query-hql
Affects Versions: 3.3.2
Environment: hibernate 3.3.2, mysql-connector-java-5.1.7, database MYSQL 5.
Reporter: Andrea Tunesi
Priority: Blocker
Running the query "select round(stTmpRiepCap.imponibile,1), round(stTmpRiepCap.ritImponibile,1) from StTmpRiepCap stTmpRiepCap", it always returns an Integer and it always truncate the decimal part of Double number ("stTmpRiepCap.imponibile" and "stTmpRiepCap.ritImponibile" are "java.lang.Double").
Example
REAL VALUE - Imponibile: 1528.57 -- Ritenuta imponibile 266.13
VALUE RETURNED USING ROUND - Imponibile: 1528 -- Ritenuta imponibile 266
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15 years, 7 months
[Hibernate-JIRA] Created: (HHH-2131) SYBASE +select for update is showing deadlock because lock is not working properly
by George Thomas (JIRA)
SYBASE +select for update is showing deadlock because lock is not working properly
----------------------------------------------------------------------------------
Key: HHH-2131
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2131
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.1.3
Environment: sybaseASE 12.5.03 in solaris +hibernate3.1.3
Reporter: George Thomas
I am connecting to Sybase database from hibernate.I tried setting locks using while selecting rows
1.session.load(class,id,LOCKMODE.UPGRADE)
2.session.lock(obj,LOCKMODE.UPGRADE)
I am attaching a sample code while updating a field in table fund after selecting it.
{
Fund fund = null;
ClientCredential credential = new ClientCredential("testDatabase", fund);
org.hibernate.Session session = SessionFactoryManager.getSessionFactory(credential).getCurrentSession();
Transaction transaction = session.beginTransaction();
log.info("Run by " + Thread.currentThread().getName());
fund = (Fund) session.get(Fund.class, new Short((short)12), LockMode.UPGRADE);
fund.setLegalEntityOrgId(fund.getLegalEntityOrgId()+1);
transaction.commit();
}
my requirement was that i wanted to do a select for update.I should acquire lock on certain rows and do a matching and if concurrent request comes ,it should wait till transaction is over that is lock is released.
When I went through the hibernate code,the hibernate is making static queries in the beginning while loading session factory.Since we are appending the holdlock during execution,the sybase dialect is not appending.
As a work around I tested with native sql with holdlock but when I test concurrent request using threads its bombing.Its throwing LockAcquisitionException.( Your server command (family id #0, process id #3777) encountered a deadlock situation.).can anyone give a solution to this problem???
org.hibernate.exception.LockAcquisitionException: could not update: [com.citco.aexeo.common.dataaccess.domain.Fund#12]
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:84)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2223)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2118)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2375)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:91)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:250)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:233)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:297)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:985)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:333)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:107)
at com.satyam.Testing.doTransaction(Testing.java:103)
at com.satyam.MyRunnable.run(MyRunnable.java:13)
at java.lang.Thread.run(Thread.java:568)
Caused by: com.sybase.jdbc2.jdbc.SybSQLException: Your server command (family id #0, process id #3777) encountered a deadlock situation. Please re-run your command.
at com.sybase.jdbc2.tds.Tds.processEed(Tds.java:2636)
at com.sybase.jdbc2.tds.Tds.nextResult(Tds.java:1996)
at com.sybase.jdbc2.jdbc.ResultGetter.nextResult(ResultGetter.java:69)
at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:204)
at com.sybase.jdbc2.jdbc.SybStatement.nextResult(SybStatement.java:187)
at com.sybase.jdbc2.jdbc.SybStatement.updateLoop(SybStatement.java:1642)
at com.sybase.jdbc2.jdbc.SybStatement.executeUpdate(SybStatement.java:1625)
at com.sybase.jdbc2.jdbc.SybPreparedStatement.executeUpdate(SybPreparedStatement.java:91)
at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:23)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2205)
... 14 more
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15 years, 7 months
[Hibernate-JIRA] Created: (ANN-837) @Where clause may trigger an ambiguous column error
by Bob Harrod (JIRA)
@Where clause may trigger an ambiguous column error
---------------------------------------------------
Key: ANN-837
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-837
Project: Hibernate Annotations
Issue Type: Bug
Components: binder
Affects Versions: 3.3.1.GA
Environment: Hibernate Core 3.3.1GA, Annotations 3.4.0GA, PostgreSQL 8.3
Reporter: Bob Harrod
Attachments: LoginUnit.java, LoginUnitUser.java, LoginUser.java
The following annotations are being used to simulate a soft delete strategy:
@Entity
@Table(name = "login_unit_user")
@SQLDelete( sql="UPDATE login_unit_user SET _is_active = 0 WHERE id = ?")
@Where(clause="_is_active <> 0")
public class LoginUnitUser extends DomainObject implements Serializable{...}
and
@Entity
@Table(name = "login_unit")
@SQLDelete( sql="UPDATE login_unit SET _is_active = 0 WHERE id = ?")
@Where(clause="_is_active <> 0")
public class LoginUnit extends DomainObject implements Serializable{...}
In the attached code, both LoginUnit and LoginUnitUser contain a system column - "_is_active". This column represents a flag which indicates whether or not the row is "active" or "deleted". When these two hibernate model objects are queried, hibernate does not properly append the table alias to this additional where clause that it uses during it's database query. The error raised is:
org.hibernate.exception.SQLGrammarException: could not execute query
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.loader.Loader.doList(Loader.java:2231)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
at org.hibernate.loader.Loader.list(Loader.java:2120)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:361)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1148)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:88)
... 35 more
Caused by: org.postgresql.util.PSQLException: ERROR: column reference "_is_active" is ambiguous
at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:1608)
at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1343)
at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:194)
at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:451)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:350)
at org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:254)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1808)
at org.hibernate.loader.Loader.doQuery(Loader.java:697)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
... 43 more
An example query with the hibernate generated aliases (loginuser0_, loginunitu1_, loginunit2_) is below:
Hibernate:
select
loginuser0_.id as id21_,
loginuser0_._audit_login_user_id as column7_21_,
loginuser0_._created as column2_21_,
loginuser0_.first_name as first3_21_,
loginuser0_.last_name as last4_21_,
loginuser0_._updated as column5_21_,
loginuser0_.user_name as user6_21_
from
login_user loginuser0_,
login_unit_user loginunitu1_,
login_unit loginunit2_
where
(
_is_active <> 0
)
and (
_is_active <> 0
)
and loginuser0_.id=loginunitu1_.login_user_id
and loginunitu1_.login_unit_id=loginunit2_.id
and loginuser0_.user_name=?
and loginunit2_.id=? limit ?
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15 years, 7 months