[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-1674) HibernateSessionFactory creates a Factory on every DB operation
[ http://jira.jboss.com/jira/browse/JBSEAM-1674?page=comments#action_12369071 ]
Ralph Schaer commented on JBSEAM-1674:
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I tested my test application and the hibernate2 application with the change. It solved the
problem.
But there where other problems with the example application.
Tomcat 6
- The example will not work out of the box. It's necessary to delete el-api.jar
(el-ri.jar is not needed too). Tomcat 6 has already an el implementation.
- It's not necessary to copy commons-collections-3.2.jar, commons-dbcp-1.2.2.jar and
commons-pool-1.3.jar into the lib directory of tomcat
as the readme.txt describes. It's sufficient to copy hsqldb.jar into the
<tomcat_home>/lib directory.
Tomcat 5.5
- This Tomcat crashes with a strange exception when I click on the Register button
"javax.el.ELException: org.hibernate.StaleStateException: Batch update returned
unexpected row count from update [0]; actual row count: 0; expected: 1"
But when I switch from HSQLDB to H2 it works. I have no idea what is wrong with HSQLDB
on Tomcat 5.5.
On Tomcat 6 HSQLDB and H2 are working.
HibernateSessionFactory creates a Factory on every DB operation
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Key: JBSEAM-1674
URL: http://jira.jboss.com/jira/browse/JBSEAM-1674
Project: JBoss Seam
Issue Type: Bug
Components: Framework
Affects Versions: 2.0.0.BETA1
Environment: JavaBeans, Hibernate, Tomcat 6.0.13, Java 6, Windows XP
Reporter: Ralph Schaer
Assigned To: Gavin King
Priority: Blocker
Fix For: 2.0.0.CR1
Reproduce with the Hibernate2 Example
Deploying to tomcat works. The browser shows the login form.
But everytime a new request is started for example with "Register New User" or
"Register" in the New User form, the seam application creates a new
HibernateSessionFactory and the SchemaExport tool is running. It drops and creates the
tables in the database every time. So it's for example not possible to register a new
user.
The problem could be that org.jboss.seam.persistence.HibernateSessionFactory has a
@Unwrap and a @Create method and both doing the
same thing, call "return createSessionFactory();". If I understand the @Unwrap
correctly the method will be called everytime the bean is referenced. This results in a
new SessionFactory every time. I think the @Unwrap method schould only return the
sessionFactory.
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