Re: [T5] A Hibernate question?
On Nov 23, 2007 1:18 PM, Donyee [EMAIL PROTECTED] wrote:
when i submit the editpage, i got a error:
Illegal attempt to associate a collection with two open sessions
...
Donyee, i don't have time to look over you specific scenarion right
now, but you might be running into this:
https://issues.apache.org/jira/browse/TAPESTRY-1850
Related discussion:
http://article.gmane.org/gmane.comp.java.tapestry.user/53095
You can test the theory by overriding and aliasing the HSM in your AppModule:
@Scope(PERTHREAD_SCOPE)
public HibernateSessionManager buildPatchedSessionManager(
HibernateSessionSource sessionSource,
ThreadCleanupHub threadCleanupHub) {
HibernateSessionManagerImpl manager =
new HibernateSessionManagerImpl(sessionSource) {
@Override public void threadDidCleanup() {
super.threadDidCleanup();
getSession().close();
}
};
threadCleanupHub.addThreadCleanupListener(manager);
return manager;
}
public void contributeAlias(
ConfigurationAliasContribution? configuration,
@InjectService(PatchedSessionManager)
HibernateSessionManager extendedManager) {
configuration.add(
AliasContribution.create(
HibernateSessionManager.class, extendedManager));
}
Cheers,
lasitha.
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Re: [T5] A Hibernate question?
不要用session.saveOrUpdate(page);如果没记错，用merge()。 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5] A Hibernate question?
Hi Lasitha, I don't know if the thread you pointed out is applicable to this topic, I started that one, the problem was due to the pesisted object, I finally solve that problem by removing the @Persist, now I'm trying to persist everything in the client side to avoid this problem(only the object id, reload in onActivate), and program has been working well. the persisted object seems causing problems from time to time, I made the following rule in my coding: use @Persist only when an object is @InjectPage to another page and some instances have to be set, otheriwse all @Persist free, the rule does work well, but I don't know if this is a correct conclusion: You need @Persist only when the page will be injected? Thanks, A.C. lasitha wrote: On Nov 23, 2007 1:57 PM, lasitha [EMAIL PROTECTED] wrote: I guess i should also point out the following thread which proposes an alternate solution, though i personally don't agree with it :) http://www.nabble.com/T5%3A-how-to-use-a-detached-hibernate-object-in-a-form--tf4669657.html#a13339389 Cheers, lasitha. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/-T5--A-Hibernate-question--tf4860162.html#a13909796 Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
[T5] A Hibernate question?
I use tapestry-hibernate in my apps,
in one page:
t:grid source=pageList row=page2
t:parameter name=pageIdcell
t:actionLink id=pageDelete context=${page2.pageId}删除/t:actionLink
t:pageLink page=sysadm/editpage context=${page2.pageId}更新/t:pageLink
/t:parameter
/t:grid
in editpage.java
void onActivate(String id) {
page = (Page) session.createCriteria(Page.class).add(
Restrictions.eq(pageId, id)).uniqueResult();
}
void onSuccess() {
session.saveOrUpdate(page);
}
when i submit the editpage, i got a error:
Illegal attempt to associate a collection with two open sessions
...
anyone helps?
