January 2008 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-2609) Delete with multiple nested sub-queries generates invalid SQL (on Postgresql)

by Michael Barker (JIRA)

Delete with multiple nested sub-queries generates invalid SQL (on Postgresql) ----------------------------------------------------------------------------- Key: HHH-2609 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2609 Project: Hibernate3 Issue Type: Bug Components: query-hql Affects Versions: 3.2.4 Environment: Linux, JDK 1.5. Reporter: Michael Barker Attachments: delete-ejbql-problem.zip When a delete uses multiple nest subqueries the resulting SQL query generated is invalid. E.g. the EJB-QL: DELETE Foo f WHERE f.fooId NOT IN (SELECT bar.fooId FROM Bar bar) AND f.fooId NOT IN (SELECT baz.fooId FROM Baz baz) or DELETE Foo WHERE fooId NOT IN (SELECT fooId FROM Bar) AND fooId NOT IN (SELECT fooId FROM Baz) Generates the following: delete from Foo where (fooId not in (select bar1_.fooId from Bar bar1_)) and (foo0_.fooId not in (select baz2_.fooId from Baz baz2_)) Will fail because the field "foo0_.fooId" should be "fooId", "foo0_" is not declared. At test case is attached. -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2576) Allow native-sql to have placeholders for default schema and catalog

by Max Rydahl Andersen (JIRA)

Allow native-sql to have placeholders for default schema and catalog -------------------------------------------------------------------- Key: HHH-2576 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2576 Project: Hibernate3 Issue Type: Improvement Components: query-sql Affects Versions: 3.2.3 Reporter: Max Rydahl Andersen we shold consider allowing something like: <sql-query name="queryName" callable="true"> { call ${default_schema}.storedProcName() } </sql-query> similar for normal SQL queries too. <sql-query name="queryName"> select * from ${default_schema}.CUSTOMER x where ... </sql-query> Maybe ${catalogschema} should be allowed to which would be the full prefix needed dependent on the dialect and would free one from having both catalog and schema + poper seperators in there. -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2142) PersistentMap.put(), remove() may return UNKNOWN object that can cause ClassCastException in client code

by Andrzej Miazga (JIRA)

PersistentMap.put(), remove() may return UNKNOWN object that can cause ClassCastException in client code -------------------------------------------------------------------------------------------------------- Key: HHH-2142 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2142 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.0.cr5 Reporter: Andrzej Miazga Here is some code in Hibernate 3.2.0cr5 that may cause this behaviour. I'm not sure if this is a bug but it surely affects the client code. AbstractPersistentCollection: protected Object readElementByIndex(Object index) { if (!initialized) { ... return persister.getElementByIndex( entry.getLoadedKey(), index, session, owner ); } ... return UNKNOWN; } PersistentMap (extends AbstractPersistentCollection): public Object put(Object key, Object value) { if ( isPutQueueEnabled() ) { Object old = readElementByIndex( key ); queueOperation( new Put( key, value, old ) ); return old; } ... So, there is a possibility to return UNKNOWN instance (MarkerObject) to the client code as the result of Map.put(). In version 3.1.3 this worked fine, but the implementation was different: public Object put(Object key, Object value) { Object old = isPutQueueEnabled() ? readElementByIndex(key) : UNKNOWN; if ( old==UNKNOWN ) { write(); return map.put(key, value); } ... } -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2421) Cascading Delete In Wrong Order

by CannonBall (JIRA)

Cascading Delete In Wrong Order ------------------------------- Key: HHH-2421 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2421 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.1 Environment: Hibernate 3.2.1, Java5, MySQL 5 (InnoDB) Reporter: CannonBall Priority: Trivial Mapping Document: <hibernate-mapping> <class name="scratchpad.hibernate.A"> <id name="id"> <generator class="increment"/> </id> <list name="bs" cascade="all,delete-orphan"> <key column="bId"/> <list-index column="idx"/> <one-to-many class="scratchpad.hibernate.B"/> </list> </class> <class name="scratchpad.hibernate.B"> <id name="id"> <generator class="increment"/> </id> <many-to-one name="a" column="aId" insert="false" update="false"/> <many-to-one name="c" column="cId" not-null="false"/> </class> <class name="scratchpad.hibernate.C"> <id name="id"> <generator class="increment"/> </id> </class> </hibernate-mapping> Code between sessionFactory.openSession() and session.close(): long id; SessionFactory factory = new Configuration().configure() .buildSessionFactory(); try { Session s = factory.openSession(); try { Transaction tx = s.beginTransaction(); try { C c = new C(); s.save(c); B b = new B(); b.setC(c); A a = new A(); a.getBs().add(b); s.save(a); tx.commit(); id = b.getId(); } catch (Exception e) { try { tx.rollback(); } catch (Exception e2) { // do nothing } throw e; } } finally { s.close(); } s = factory.openSession(); try { Transaction tx = s.beginTransaction(); try { A a = (A) s.load(A.class, id); B b = a.getBs().get(0); a.getBs().remove(b); s.delete(b.getC()); tx.commit(); } catch (Exception e) { try { tx.rollback(); } catch (Exception e2) { // do nothing } throw e; } } finally { s.close(); } } finally { factory.close(); } The generated SQL (show_sql=true): Hibernate: select max(id) from C Hibernate: select max(id) from A Hibernate: select max(id) from B Hibernate: insert into C (id) values (?) Hibernate: insert into A (id) values (?) Hibernate: insert into B (cId, id) values (?, ?) Hibernate: update B set bId=?, idx=? where id=? Hibernate: select a0_.id as id0_0_ from A a0_ where a0_.id=? Hibernate: select bs0_.bId as bId1_, bs0_.id as id1_, bs0_.idx as idx1_, bs0_.id as id1_0_, bs0_.aId as aId1_0_, bs0_.cId as cId1_0_ from B bs0_ where bs0_.bId=? Hibernate: select c0_.id as id2_0_ from C c0_ where c0_.id=? Hibernate: update B set cId=? where id=? Hibernate: update B set bId=null, idx=null where bId=? Hibernate: delete from C where id=? Hibernate: delete from B where id=? When you have a collection that is mapped with a cascade of 'delete-orphan', when removing an entity from the collection, the corresponding orphan delete is scheduled at the end of the session's deletions queue. As you can see from my example above, when you have a relationship of A has a list of B's, B has a relationship with C, removing B from the A's list results in its deletion after C's deletion (despite the order of statements dictating C's deletion after B's). If I were to make B's relationship to C not-null, the above code would result in a FK constraint error as C would be removed before B. You could force the correct removal of B before C with a manual delete of B like so: A a = (A) s.load(A.class, id); B b = a.getBs().get(0); C c = b.getC(); a.getBs().remove(b); s.delete(b); s.delete(c); -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2390) select clause alias in HQL is mapped incosistently in SQL.

by Natto Lover (JIRA)

select clause alias in HQL is mapped incosistently in SQL. ---------------------------------------------------------- Key: HHH-2390 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2390 Project: Hibernate3 Type: Bug Components: query-hql Versions: 3.2.2 Environment: Win2K+JDK1.5+Eclipse3.2.1+Hibernate3.2.2, Solaris Express x86+MySQL5 Reporter: Natto Lover Attachments: HQLTest.zip Hi. I was told at the users forum to post a test case here. I give an alias to an expression in the select clause, try to refer it in the where clause. In SQL, Hibernate replaces the alias in the select clause, but leaves the original text in the where clause. This is the HQL: select (p.endDate - p.startDate) as period, p from Project as p where period > :period_length See above where the alias 'period' appears. Now, This is the resulting SQL: select project0_.end_date-project0_.start_date as col_0_0_, project0_.id as col_1_0_, project0_.id as id0_, project0_.name as name0_, project0_.start_date as start3_0_, project0_.end_date as end4_0_ from PROJECT project0_ where period>? Note above the 'period' that was in the select clause is replaced with machine generated "col_0_0_", but that is not applied for the alias in the where clause. Please find attached a test case archive. Two HQL statements are tried. One uses the alias in the where clause, the other one uses the alias in the order by clause. -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2990) Bad usage of ClassLoader.loadClass() for Java6 in SerializationHelper$CustomObjectInputStream - deserialization bottleneck for arrays

by Tom Eicher (JIRA)

Bad usage of ClassLoader.loadClass() for Java6 in SerializationHelper$CustomObjectInputStream - deserialization bottleneck for arrays ------------------------------------------------------------------------------------------------------------------------------------- Key: HHH-2990 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2990 Project: Hibernate3 Issue Type: Bug Affects Versions: 3.2.5 Environment: Hibernate 3.2.5, Java 6 Sun (any), any platform (tested Linux x64, Mac x64 (J6dp1)) Reporter: Tom Eicher Sun has "clarified" (others say modified) the API of "ClassLoader.loadClass()" and no longer allows this to be called for arrays, e.g. String[]. ( see: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6500212 and duplicates ) and states that this has always been very unstable to use/do in the first place. So trying to load an array of something using this method results in ClassNotFoundException. The correct thing to do is call Class.forName(className,false,myClassLoader); instead of myClassLoader.loadClass(className); In SerializationHelper$CustomObjectInputStream.resolveClass() we do ClassLoader loader = Thread.currentThread().getContextClassLoader(); try { resolvedClass = loader.loadClass(className); log.trace("Class resolved through context class loader"); } catch(ClassNotFoundException e) { log.trace("Asking super to resolve"); resolvedClass = super.resolveClass(v); } which results in the deserialization process for a String[] always searching String[] in all the application's jars/wars/etc before really loading it. The bad thing is, loadClass() is synchronized. In our case, we have multiple threads loading database rows containing String[]s, which results in one Thread doing INFO | jvm 1 | 2007/11/30 16:56:44 | java.lang.Thread.State: RUNNABLE INFO | jvm 1 | 2007/11/30 16:56:44 | at java.util.zip.ZipFile.getEntry(Native Method) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.util.zip.ZipFile.getEntry(ZipFile.java:149) INFO | jvm 1 | 2007/11/30 16:56:44 | - locked <0x00002aaab4047c20> (a java.util.jar.JarFile) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.util.jar.JarFile.getEntry(JarFile.java:206) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.util.jar.JarFile.getJarEntry(JarFile.java:189) INFO | jvm 1 | 2007/11/30 16:56:44 | at sun.misc.URLClassPath$JarLoader.getResource(URLClassPath.java:754) INFO | jvm 1 | 2007/11/30 16:56:44 | at sun.misc.URLClassPath.getResource(URLClassPath.java:168) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.net.URLClassLoader$1.run(URLClassLoader.java:192) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.security.AccessController.doPrivileged(Native Method) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.net.URLClassLoader.findClass(URLClassLoader.java:188) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.lang.ClassLoader.loadClass(ClassLoader.java:306) INFO | jvm 1 | 2007/11/30 16:56:44 | - locked <0x00002aaab4025998> (a org.apache.catalina.loader.StandardClassLoader) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.lang.ClassLoader.loadClass(ClassLoader.java:299) INFO | jvm 1 | 2007/11/30 16:56:44 | - locked <0x00002aaab4095a68> (a org.apache.catalina.loader.StandardClassLoader) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.lang.ClassLoader.loadClass(ClassLoader.java:251) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1346) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.hibernate.util.SerializationHelper$CustomObjectInputStream.resolveClass(SerializationHelper.java:263) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1624) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:210) and all other threads doing nothing INFO | jvm 1 | 2007/11/30 16:56:44 | java.lang.Thread.State: BLOCKED (on object monitor) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.lang.ClassLoader.loadClass(ClassLoader.java:295) INFO | jvm 1 | 2007/11/30 16:56:44 | - waiting to lock <0x00002aaab4095a68> (a org.apache.catalina.loader.StandardClassLoader) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.lang.ClassLoader.loadClass(ClassLoader.java:251) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1346) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205) INFO | jvm 1 | 2007/11/30 16:56:44 | at org.hibernate.util.SerializationHelper$CustomObjectInputStream.resolveClass(SerializationHelper.java:263) INFO | jvm 1 | 2007/11/30 16:56:44 | at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575) (rest of stack trace identical to above) This can easily be worked around by setting the compatibility property -Dsun.lang.ClassLoader.allowArraySyntax=true however a) this workaround might not be around for long and b) most people will never find this bottleneck, therefore will not apply the workaround. For our case, we got a 35% performance increase just be setting this property (and not a single loadClass() or ZipFile.getEntry() in any thread dump any more). Cheers, Tom. -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HHH-2594) org.hibernate.criterion.Restrictions.in(?) should break up lists of 1000+ items, Oracle Dialect

by Nathan Silberman (JIRA)

org.hibernate.criterion.Restrictions.in(?) should break up lists of 1000+ items, Oracle Dialect ----------------------------------------------------------------------------------------------- Key: HHH-2594 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2594 Project: Hibernate3 Issue Type: Improvement Components: query-hql Affects Versions: 3.2.0.cr2 Environment: Hibernate 3.2cr2, Oracle DB Reporter: Nathan Silberman Priority: Minor Given a Restriction criteria, if an Array or Collection is passed into the 'in' method, an error is thrown by Oracle complaining that an IN clause must contain at most 1000 items. The Oracle Dialect should be able to segment these items into multiple IN clauses of at most 1000 items each. -- 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

16 years, 4 months

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[Hibernate-JIRA] Created: (HBX-951) Folder selection dialog should allow creating a new folder

by Dan Allen (JIRA)

Folder selection dialog should allow creating a new folder ---------------------------------------------------------- Key: HBX-951 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-951 Project: Hibernate Tools Issue Type: Improvement Components: eclipse Affects Versions: 3.2beta9, 3.2beta10 Environment: Eclipse 3.2.2 Hibernate Tools beta10 Reporter: Dan Allen Attachments: new_folder.png The folder selection dialog used by the Hibernate Code Generation... definition screen (Main tab, Output directory) does not allow creating new folders. The lack of this feature is very inconvenient. For instance, if I would like to export my schema to HTML documentation, I go into the tool to setup a new Exporter. But I cannot create a new folder to put the docs. So I have to quit the dialog, go create a new folder using the Eclipse File > New > Folder dialog. Then I have to go back into the tool and configure it to use this folder. The attached screenshot shows what I am looking for. -- 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

16 years, 5 months

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[Hibernate-JIRA] Created: (HHH-2897) Adding support for use of sequence objects in DB2 V8 OS390

by Tobias Sternvik (JIRA)

Adding support for use of sequence objects in DB2 V8 OS390 ---------------------------------------------------------- Key: HHH-2897 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2897 Project: Hibernate3 Issue Type: Improvement Components: core Affects Versions: 3.2.5 Environment: Hibernate Core 3.2.5ga, DB2 UDB V8 OS390 (Z/OS) Reporter: Tobias Sternvik Attachments: DB2390Dialect.java Since version 8 of DB2 sequence objects are supported on the OS390 platform. But, the syntax for use of sequences varies between OS390 platform and the "rest". For retreival of next value in DB2 OS390 the syntax is "select nextval for <theSequenceName> from sysibm.sysdummy1" while in the "rest" it is "values nextval for <theSequenceName>". There migt be the case that within AS/400 environment the syntax is imilar to OS390, but I have not verified this. Also other differences exists.. I've included a enhanced verion of DB2390Dialect.java that has been proven to work in DB2 mainframe environment. -- 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

16 years, 5 months

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[Hibernate-JIRA] Created: (HHH-2826) IS [NOT] NULL checks with component values

by Steve Ebersole (JIRA)

IS [NOT] NULL checks with component values ------------------------------------------ Key: HHH-2826 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2826 Project: Hibernate3 Issue Type: Improvement Components: query-hql Reporter: Steve Ebersole Assignee: Steve Ebersole Fix For: 3.2.6, 3.3 Currently the HQL translator attempts to render IS NULL and IS NOT NULL checks against a component using tuple syntax. Would be much better to instead "explode" these. For example, consider Person with a name property which is a component type of Name and the HQL: "from Person p where p.name is null" Currently, we'd end up with SQL like: "... from person p where (p.f_name, p.l_name) is null" but the exploded form would make much more sense here: "... from person p where ( p.f_name is null and p.l_name 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

16 years, 5 months

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hibernate-issues January 2008