February 2008 - hibernate-issues - Jboss List Archives

[Hibernate-JIRA] Created: (HHH-2477) lazy fetching ManyToOne produces inproper proxies when using single table inheritance strategy

by Daniel Nguyen (JIRA)

lazy fetching ManyToOne produces inproper proxies when using single table inheritance strategy ---------------------------------------------------------------------------------------------- Key: HHH-2477 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2477 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.1 Environment: hibernate 3.2.1-GA, postgresql 8.1 Reporter: Daniel Nguyen Attachments: bug.zip I have entity base class Vehicle and entity class Car which extends Vehicle (using single table inheritance strategy). I also have entity class User which have single-ended @ManyToOne relation from User to Vehicle with lazy fetching. Now there is a Car instance "c" and User instance "u" with relation to "c". Lazily fetching vehicle from "u" results with proxy object "o" which is instanceof Vehicle but not instanceof Car as expected. So it's impossible cast "o" to Car or at least read any of Car's property from "o". This is serious problem when inheritance is extensively used because inproper proxy object remains in cache. To walkaround I'd have to resign with lazy fetching (much performance loss) or manually replace proxy object in cache. testing code: SessionFactory sf = null; Session s = null; Transaction tx = null; try { sf = cfg.buildSessionFactory(); s = sf.openSession(); tx = s.beginTransaction(); //create car Car car = new Car(); car.setIdVehicle(1); car.setAge(5); s.save(car); //create user of car User user = new User(); user.setIdUser(1); user.setVehicle(car); s.save(user); //make sure it is actually added s.flush(); // test 1 - works ok, because we loaded vehicle before user s.clear(); //clear cache Vehicle vv = (Vehicle)s.get(Vehicle.class, 1); User uu = (User)s.get(User.class, 1); //we know that user vehicle is actually a Car Car cc = (Car)uu.getVehicle(); // test 2 - fails, when using lazy fetching s.clear(); //clear cache User u = (User)s.get(User.class, 1); Vehicle v = u.getVehicle(); //we know that user vehicle is actually a Car //so we cast to Car but ClassCastException is raised!!! Car c = (Car)v; //let's check what's actual class of v System.out.println(v.getClass().getName()); System.out.println(v.getClass().getSuperclass().getName()); //result: // test.hibernate.Vehicle$$EnhancerByCGLIB$$12ce1883 // test.hibernate.Vehicle //but I expected: // test.hibernate.Car$$EnhancerByCGLIB$$xxxxx // test.hibernate.Car } finally { if (tx!=null) tx.rollback(); if (s!=null) s.close(); if (sf!=null) sf.close(); } -- 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

17 years, 7 months

7
10
0 / 0

[Hibernate-JIRA] Created: (HBX-930) hbm2ddl: no outpufile on update="true"

by Nick Folder (JIRA)

hbm2ddl: no outpufile on update="true" -------------------------------------- Key: HBX-930 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-930 Project: Hibernate Tools Issue Type: Bug Components: ant Affects Versions: 3.2beta9 Environment: Hibernat 3.2, Oracle9i Reporter: Nick Folder Priority: Minor No outputfile is generated when option update is set to true. Example: <hbm2ddl export="false" outputfilename="sql.ddl" update="true" /> Thanks B -- 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

17 years, 7 months

4
3
0 / 0

[Hibernate-JIRA] Created: (HBX-992) JPA configuration should support configurationfile as a way to do overrides the persistence.xml location

by Leonardo Pinho (JIRA)

JPA configuration should support configurationfile as a way to do overrides the persistence.xml location -------------------------------------------------------------------------------------------------------- Key: HBX-992 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-992 Project: Hibernate Tools Issue Type: Bug Affects Versions: 3.2beta10, 3.2beta9 Reporter: Leonardo Pinho Priority: Blocker JPA configuration should support configurationfile as a way to do overrides the persistence.xml location, like: <target name="hbm2ddl"> <hibernatetool destdir="${src-hbmtools.dir}"> <jpaconfiguration configurationfile="META-INF/${database}/persistence.xml"/> <classpath location="${build.classes.dir}"/> <hbm2ddl export="false" outputfilename="${module.name}.ddl" format="true" haltonerror="true"/> </hibernatetool> </target> When I try it, I got "<jpaconfiguration> currently only support autodiscovery from META-INF/persistence.xml. Thus setting the configurationfile attribute is not allowed" -- 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

17 years, 7 months

4
10
0 / 0

[Hibernate-JIRA] Created: (HV-35) Add a "trim" attribute to @NotEmpty

by Mike Youngstrom (JIRA)

Add a "trim" attribute to @NotEmpty ----------------------------------- Key: HV-35 URL: http://opensource.atlassian.com/projects/hibernate/browse/HV-35 Project: Hibernate Validator Issue Type: New Feature Affects Versions: 3.0.0.ga Reporter: Mike Youngstrom Frequently where an empty string is invalid so would " " be invalid. I think trim attribute added to @NotEmpty(trim=true) would be a simple and useful addition. -- 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

17 years, 7 months

7
12
0 / 0

[Hibernate-JIRA] Created: (HHH-2934) ScrollableResults.get(int column) returns only the first character of a database column type char(10)

by Samir Jyoti (JIRA)

ScrollableResults.get(int column) returns only the first character of a database column type char(10) ----------------------------------------------------------------------------------------------------- Key: HHH-2934 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2934 Project: Hibernate3 Issue Type: Bug Components: query-sql Affects Versions: 3.2.4.sp1 Environment: IBM DB2 8.1.7, Reporter: Samir Jyoti ScrollableResults.get(int column) returns only the first character of a database column type char(n) where n> 1 (say 10 or 18). So if your column has value 'SIMPSON ' , it only returns 'S'. Had to warp the column with a DB2 SQL "VARCHAR" function to convert it into a String. -- 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

17 years, 7 months

5
5
0 / 0

[Hibernate-JIRA] Created: (HHH-3059) Code documentation and a couple of error message improvements.

by Evan Richard (JIRA)

Code documentation and a couple of error message improvements. -------------------------------------------------------------- Key: HHH-3059 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3059 Project: Hibernate3 Issue Type: Patch Components: query-criteria Affects Versions: 3.2.5 Reporter: Evan Richard Priority: Minor Attachments: Hibernate comments.patch Various litte javadoc improvements and some improvements to a couple of error messages. -- 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

17 years, 7 months

3
4
0 / 0

[Hibernate-JIRA] Created: (HHH-2153) Not possible to overwrite System property defaults with hibernate.properties (e.g. use cglib bytecode provider in jboss)

by Armin Haaf (JIRA)

Not possible to overwrite System property defaults with hibernate.properties (e.g. use cglib bytecode provider in jboss) ------------------------------------------------------------------------------------------------------------------------ Key: HHH-2153 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2153 Project: Hibernate3 Type: Bug Components: core Versions: 3.2.0.ga Environment: JBoss 4.0.4GA, hibernate 3.2.0.ga Reporter: Armin Haaf It is not possible to set the bytecode provider by hibernate.properties, because jboss ejb3.deployer sets it in System.properties. System.properties is added to the GLOBAL_PROPERTIES in Environment.class after hibernate.properties and overwrites the values in hibernate.properties. A solution would be to change the order of adding the properties to GLOBAL_PROPERTIES. First add System.properties, then add hibernate.properties, to be able to overwrite as needed -- 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

17 years, 7 months

5
10
0 / 0

[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

17 years, 7 months

7
15
0 / 0

[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

17 years, 7 months

6
12
0 / 0

[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

17 years, 7 months

4
8
0 / 0

2026

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

hibernate-issues February 2008