[jboss-user] [EJB 3.0] - Re: concurrently modifying entity instance
You made me believe an actual advise was posted, anyway: As reference says, the lock is honored at persistence-context level. Since two sessions are involved, there exists two different persistence-contexts, so EntityManager.lock() issued in one session has not enough 'reachability'. Besides, the lock (either READ or WRITE) granted by EntityManager.lock() is not semantically equivalent to pessimistic lock. In other words no thread is getting blocked when accessing an already locked entity. That is why I'm looking for expert advise. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4144748#4144748 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4144748 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [EJB 3.0] - Re: concurrently modifying entity instance
No, it doesn't. I'm aware of potential disadvantages of pessimistic locking, however that is needed here. So the question is how to implement pessimistic locking. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4144940#4144940 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4144940 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [EJB 3.0] - concurrently modifying entity instance
Dear all,
I'm requesting in the kindest way any advise on this issue: concurrent
modification of one entity instance.
The following is a simplified scenario, but describes the issue well.
There is this entity which holds a number, one user is in charge of decreasing
that magnitude and another one is in charge of incrementing it.
These two are the methods each user is supposed to invoke during interaction
with the application.
In consumer's session:
public void decrement() {
| Resource r = manager.find(Resource.class, id);
| while(r.getCounter()0)
| r.decreaseByOne() ;
| }
In producer's session:
public void increment() {
| Resource r = manager.find(Resource.class, id);
| r.increaseCounterBy(100) ;
| }
Those methods could potentially be invoked simultaneously, so one thing I'd
like to prevent is method increment() been called during execution of
decrement(), hence I need to either:
1.- serialize those invocations, or
2.- pessimistically lock the entity instance.
For option 2, it is not clear to me how to lock the entity instance 'globally',
since each user has his own persistence context entitymanager.lock() won't be
enough, right?
For option 1 I don't even have a clue.
best regards,
Gerardo
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[jboss-user] [JBoss Seam] - Re: demultiplexing notifications from MDB
How is binded one SFSB with one user web session? Is there any way to traverse the component tree ? View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128511#4128511 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128511 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: is remoting available in seam on tomcat?
I'm sorry, the @WebRemote annotation was missing. really appreciate your advice View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128452#4128452 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128452 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: demultiplexing notifications from MDB
I'm aware the docs says: anonymous wrote : Nor do they (Message-driven beans) have access to the session or conversation state of their caller and found this old kind of feature request: http://www.jboss.com/index.html?module=bbop=viewtopict=80512 So very likely my intented approach is also a dead end. I just would like some confirmation on this. So instead I'll try to implement this feature with an application scoped bean, who holds a mapping of user to events. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128551#4128551 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128551 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: Longrunning process
hispeedsurfer: do you mind explaining more details please? was a refactorization the solution? View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128549#4128549 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128549 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: serializing access to resource
Ok, perhaps the correct question is: Does EJB3 persistence honors this aspects of Entity Bean Life Cycle (these behaviour is described in http://www.ubookcase.com/book/Sams/JBoss.4.0.The.Official.Guide/0672326485/ch05lev1sec4.html): anonymous wrote : With the default configuration of JBoss there is only one active instance of a given entity bean in memory at one time and the locking policy defined in each container configuration in standardjboss.xml: locking-policyorg.jboss.ejb.plugins.lock.QueuedPessimisticEJBLock/locking-policy I think if this two pieces are honored, then all I have to assure is the proper container-configuration (Standard CMP 2.x EntityBean) is in effect on my entity bean, what do you think?? please keep in mind by any means I'm not suggesting any disrespect via disinformation. I'm just kindly asking for some insight about this pessimistic locking issue, which at some point one self have to face. regards, PS: The reason I formulate the question as that is because the book Pro EJB3 JPA says the JPA doesn't support a portable way to do pessimistic locking. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128156#4128156 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128156 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: EntityManager not injected in onMessage method
Maybe this could this be associated with the lifecycle of the MDB being dependent on seam: http://www.jboss.org/?module=bbop=viewtopict=100946 I'll appreciate if you post back if this is the case, because I'm also about to implement a configuration similiar to yours. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128254#4128254 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128254 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - demultiplexing notifications from MDB
Hello, I have this seam application that uses a message driven bean for receiving messages from external system. Upon arrival of message I would like to notify the specific client (provided she/he has an ongoing web session) by means of a4j:push listener. The question is: how do I access a particular SFSB instance bounded to the related user? that is, the bean to whom the a4j:push listener is bound to?? (I hope my english is good enough to correctly describe the question) regards, Gerardo View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4128251#4128251 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4128251 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: serializing access to resource
The problem is I don't use hibernate directly but through JPA, besides the hibernate's documentation says: anonymous wrote : Hibernate will always use the locking mechanism of the database, never lock objects in memory! But can't find description of behaviour when some thread tries to access an already locked row. It willl be blocked? an exception thrown? Do you think is it possible to achieve this at the object level? by means of locking the entity bean itself? It would be great to do this via some stablished and robust api, the previously cited documentation (Jboss 4.0 official guide) mentions something about it, but not in a useful hands-on way (at least to my taste). Otherwise, is the only option left to implement this ? http://www.martinfowler.com/eaaCatalog/pessimisticOfflineLock.html best regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4127981#4127981 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4127981 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - serializing access to resource
Hello, I need to access an entity bean instance in a serial fashion, so I kindly request for any pattern to implement this. The use case is similar to managing an account balance, the account must be blocked during modification. I need to block other requests until the resource is available (as if it was a printer). That is why optimistic locking is not suitable. I don't think synchronizing the SFSB which handles the entity bean is the best way since that would serialize invocation regardless of the entity bean instance been updated, I only want to avoid concurrently modifying the same entity bean instance. Jboss 4.0 official guide describes the transaction lock behaviour which: anonymous wrote : ensures that only one transaction at a time has access to a given entity bean But it is not clear to me how this apply in the case, for example, of two entitymanagers loading same entity bean. Does it mean the second one's thread will be locked at that precise moment? Also I don't quite grasp the behavior of entitymanager.lock(), what happens when another thread tries to lock one entity bean instance already locked? the locking effect is global to different entitymanager instances? I deeply appreciate any advice View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4127665#4127665 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4127665 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - is remoting available in seam on tomcat?
Hello I'm getting a HTTP 404 error on http://localhost/myapp/seam/resource/remoting/resource/remote.js | | also in | | http://localhost/myapp/seam/resource/remoting/interface.js?mycomponent | Since everything else seems in place (I have the org.jboss.seam.servlet.SeamResourceServlet servlet properly configured in web.xml) I wonder if the interface necessarily has to be annotated as @Local? I do not include the annotation because this application uses seam on tomcat, with no EJB. regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4123826#4123826 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4123826 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: Several actions performed by one bean - is it possible a
Hi, there isn't such restriction to have just one method with @Begin, probably there is something else wrong with your code. regards, View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4123883#4123883 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4123883 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - weird navigation error
Hello, I've deployed an application in two machines running windows + tomcat 5.5 and/or tomcat 6.0, everything goes ok. but that same application has this weird navigation problem when deployed in linux + tomcat 5.5 and/or tomcat 6.0: in login page (which is default page) after entering correct login and password and clicking login button the same login.seam page keeps appearing even though the authentication was successful. Even more, the welcome message which I inject after successful identification appears when login page is rendered again. The logs show no error, only a bunch of debug messages I'm I don't know why! same code runs ok in those other windows machines :( Is there a way to check why the incorrect page is been rendered?? Given that the authentication is successful I wonder maybe that server is filtering some cookie information or something which prevents the session been. How could I check for this condition? is there a way to dump debug info from navigation logic to see why the login page is re-displayed?? one thing I noted is that in my machine the login form tag includes the session id: form id=login name=login method=post action=/eco1/login.seam;jsessionid=7C53A3E06BBFBFC72AA09363038D8644 enctype=application/x-www-form-urlencoded but in linux deployment it doesn't includes jsessionid: | form id=login name=login method=post action=/eco1/login.seam enctype=application/x-www-form-urlencoded | Actually I see I'm not always hitting the server, the login page redisplays but logs are not actualized. But I didn't noticed before because the welcome user ___! keeps varying as I enter different login names. (Does this even makes sense???) I swear the message changes. This happens with either IE or Firefox, at some point I'm hitting some cache, sometimes not even if I restart the browser the log changes. please I would really appreciate some insight on this issue, which is probably not related. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4123299#4123299 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4123299 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: One Seam component calling another
Hi, it could be just the different variable name: private EntityManager em; and private EntityManager entityManager; regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4116210#4116210 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4116210 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to dis-manage entities?
Probably I'm missing some fundamental knowledge about this issue, I do not think this scenario is that uncommon: how to retrieve an entity by query (or otherwise) in 'read-only mode' that is, avoid updating it at flush time? Given that it is been managed by EntityManager, it will be implicitly updated (that is, even without calling EntityManager.merge explicitly), right? Or could be that, in general, I am using the wrong approach/asking the wrong question? View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4113669#4113669 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4113669 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - safe way to test if entity is persisted
Hello, in this topic http://www.jboss.com/index.html?module=bbop=viewtopict=98478 the question of what is the proper (specification compliant) way to check if an entity has been persisted was raised. And here http://opensource.atlassian.com/projects/hibernate/browse/HHH-2439 is stated that anonymous wrote : checking non-null identifier value being available on an entity instance if its in persistent state is at least anonymous wrote : relying on questionable behavior but I didn't see any alternative approach suggested, so I'm asking for the safe way to verify persistent state of an entity. regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4114022#4114022 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4114022 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: missing conversation entry error
I'm sorry, pretending to make the code clearer I removed a rich:modalPanel used
for confirmation, and it turns out there was actually the error.
as I posted before, the link was rendered by:
s:div rendered=#{editorEmployee.employee.id!=null}
| h:commandLink id=btnEliminar value=delete
action=#{editorEmployee.delete}/
| /s:div
|
and the javascript code used to activate the link was:
| function doDelete() {
| window.location = document.getElementById('f:btnEliminar').href ;
| }
I couldn't found a way to trigger the link programmatically, directly assigning
window.location apparently has not the same effect.
By time constraints to get around of my lack of knowledge of that js api I
inserted a confirmation page instead.
Would be nice to know the correct way to use a rich:modalPanel to ask for
confirmation, and then invoke h:commandLink, though.
anyway really thanks for your time
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[jboss-user] [JBoss Seam] - Re: how to invoke action, then display resource
Just what I needed, thank you! View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4113634#4113634 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4113634 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to dis-manage entities?
perhaps the topic name was not the best, but I think its a fair question.
So far, only strategy to avoid the entity which holds the collection to get
updated is to resort to deal with id alone, a not very object-oriented way to
go, so instead of retrieving the ticket.course object fetch just the id:
Integer idCourse = (Integer)entityManager
| .createQuery(select t.course.id from Ticket t where
t.code=#{register.code})
| .getSingleResult();
But I don't know if dealing with IDs is the proper way to go with respect to
ORM techniques.
At the same time this makes think of another issue: the implementation of
master-detail editions, which at first, for the neophyte like me, feels natural
to handle using nested conversations and sharing full objects but the preferred
way to go is using entityhome and its passing-just-the-id technique, again a
not very OO-ish way IMHO.
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[jboss-user] [JBoss Seam] - Re: pattern to form urls for resources requested
thanks for the follow up Pete! View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4112376#4112376 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4112376 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: question about components and persistence
Thanks for you answer, although I don't see a hit to database at the beginning of every conversation much extra load I would like to know more about why keeping just the Id is better. At first it would seem to the neophyte like me a more natural way to keep the object itself and perhaps merge it at the beginning of each conversation. (issue aside I wonder if there is a way to differentiate between a managed entity and one that is not, to avoid the exception thrown when trying to merge an already managed entity) Rephrasing, when is more appropriate to merge and entity instead of reloading it? I apologize if this question is not entirely related to seam View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4112379#4112379 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4112379 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: Adding custom timeout action
Assuming session contexts variables are removed when session expires
perhaps this could work:
| @Observer(org.jboss.seam.preDestroy.sessionScopedVariable)
| public void cleanup() {}
|
or org.jboss.seam.preDestroyContext.
what do you think?
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[jboss-user] [JBoss Seam] - Re: persist() / remove() at end of long running conversation
Is there a final consensus about this issue? I mean how is done know and if this should change in future version (which one) ? to be in the safe side: what would be the best way to test for 'persistency' of an entity? also I kept the idea this is not an issue that is RDBM related, right? I really appreciate you sharing about this interesting stuff View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4112435#4112435 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4112435 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [Persistence, JBoss/CMP, Hibernate, Database] - how to exclude entities in flush
Hello, I got into this kind of chicken-egg problem related to entity
versioning:
There is an entity Course which has a collection of CourseNote.
When adding a CourseNote to the collection I have to obtain a managed instance
of Course, whose version field is been incremented implicitly when the flush
occurs (because it is been managed).
And that is the problem because when more than one user are inserting
CourseNotes to the collection, the second one will get an
optimisticlockexception at the time he tries to merge his instance of the course
I do need to access the course during CourseNote creation to do some work (so
entityManager.getReference is not enough) but that very action is causing the
course to get managed and involved in the transaction, which I do not want to
happen.
//validation omited
| Ticket ticket = (Ticket)entityManager
| .createQuery(select t from Ticket t where t.code=#{register.code})
| .getSingleResult();
|
| CourseNote courseNote = ticket.getCourse().enroll(user) ;
| entityManager.persist(courseNote) ;
|
| //...
| entityManager.flush() ;
|
|
class Course {
| public void enroll(User user) {
| CourseNote cn = new CourseNote(user,this) ;
| if(!getCourseNotes().contains(c)) {
| getCourseNotes().add(c) ;
| usuario.getCourseNotes().add(c) ;
| return c ;
| }
| throw new IllegalStateException(
| new StringBuilder(50)
| .append(User )
| .append(user.getId())
| .append( is already enrolled in the course )
| .append(this.getId()).toString()) ;
| }
| }
|
Please, some advice on this will be very very appreciated
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[jboss-user] [JBoss Seam] - how to dis-manage entities?
Hello, I got into this kind of chicken-egg problem related to entity
versioning:
There is an entity Course which has a collection of CourseNote.
When adding a CourseNote to the collection I have to obtain a managed instance
of Course, whose version field is been incremented implicitly when the flush
occurs (because it is been managed).
And that is the problem because when more than one user are inserting
CourseNotes to the collection, the second one will get an
optimisticlockexception at the time he tries to merge his instance of the course
I do need to access the course during CourseNote creation to do some work (so
entityManager.getReference is not enough) but that very action is causing the
course to get managed and involved in the transaction, which I do not want to
happen.
//validation omited
| Ticket ticket = (Ticket)entityManager
| .createQuery(select t from Ticket t where t.code=#{register.code})
| .getSingleResult();
|
| CourseNote courseNote = ticket.getCourse().enroll(user) ;
| entityManager.persist(courseNote) ;
|
| //...
| entityManager.flush() ;
|
|
class Course {
| public void enroll(User user) {
| CourseNote cn = new CourseNote(user,this) ;
| if(!getCourseNotes().contains(c)) {
| getCourseNotes().add(c) ;
| usuario.getCourseNotes().add(c) ;
| return c ;
| }
| throw new IllegalStateException(
| new StringBuilder(50)
| .append(User )
| .append(user.getId())
| .append( is already enrolled in the course )
| .append(this.getId()).toString()) ;
| }
| }
|
I kindly request some pattern or tip.
Please, some advice on this will be very very appreciated
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[jboss-user] [JBoss Seam] - how to invoke action, then display resource
Hi, I want to show a page with an excel file after clicking some button.
But don't know how to redirect to show the file, I tried using pages.xml as
any other page but didn't worked:
s:link view=/reports/status_report.xls value=Export target=_blank /
|
!-- This don't work, what would be the correct way to acomplish this?--
|
| page view-id=/reports/status_report.xls
action=#{reporter.doStatusReport}/
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[jboss-user] [JBoss Seam] - missing conversation entry error
Hello
I'm having problems with a nested conversation, which after termination cannot
restore the parent conversation only in 1 out of 3 similar (it seems so) cases.
Its a case of edition of item A which has a collection of items B, when edition
of item A starts I begin a conversation,
inside that page every edition of items B is done inside a nested conversation.
It works fine except in case of deletion of item B, which throws
IllegalStateException: missing conversation entry.
Here is the relevant code
this is the extract from master page (company which holds a collection of
employees):
!-- page for edition of Company --
| s:link value=Add employee action=#{editorEmployee.create}
rendered=#{editorCompany.company.id!=null}/
|
| rich:dataTable value=#{editorCompany.company.employees} var=emp
rows=5 rendered=#{editorCompany.company.employees.size0}
| h:column
| h:outputText value=#{emp.name} /
| br/
| s:link value=Edit action=#{editorEmployee.select(emp)} /
| /h:column
| /rich:dataTable
|
this is the extract from detail page (employee data):
| h:form id=f
|
| s:div rendered=#{editorEmployee.employee.id!=null}
| h:commandLink id=btnEliminar value=
action=#{editorEmployee.delete}/
| /s:div
|
| s:decorate id=nameDecorate template=/layout/edit.xhtml
| ui:define name=labelName:/ui:define
| h:inputText id=name value=#{editorEmployee.employee.name}
required=true
| a4j:support event=onblur reRender=nameDecorate/
| /h:inputText
| /s:decorate
|
| div class=buttonBox
| h:commandLink action=#{editorEmployee.save}
| h:graphicImage value=/img/btn/btn_save.gif
alt=save styleClass=btn /
| /h:commandLink
|
| h:commandLink action=#{editorEmployee.cancel}
immediate=true
| h:graphicImage value=/img/btn/btn_cancel.gif
alt=cancel styleClass=btn /
| /h:commandLink
| /div
| /h:form
|
the pages.xml:
| page view-id=/admin/editorEmployee.xhtml
| navigation from-action=#{editorEmployee.save}
| rule if=#{editorEmployee.ok}
| redirect view-id=/admin/editorCompany.xhtml/
| /rule
| rule if=#{not editorEmployee.ok}
| redirect view-id=/admin/editorEmployee.xhtml/
| /rule
| /navigation
| navigation from-action=#{editorEmployee.cancel}
| redirect view-id=/admin/editorCompany.xhtml/
| /navigation
| navigation from-action=#{editorEmployee.delete}
| redirect view-id=/admin/editorCompany.xhtml/
| /navigation
| /page
|
finally, the EditorEmployee.java
| @Scope(ScopeType.CONVERSATION)
| @Name(editorEmployee)
| @Restrict(#{identity.loggedIn and s:hasRole('Administrator')})
| public class EditorEmployeeAction {
| @In(#{editorSede.sede})
| Company company ;
|
| @Begin(nested=true, flushMode=FlushModeType.MANUAL)
| public void select(Employee selectedEmployee) {
| log.info(selectEmployee, beginning
conversation.id=#0,Conversation.instance().getId()) ;
| employee = entityManager.merge(selectedEmployee);
| }
|
| @Begin(nested=true, flushMode=FlushModeType.MANUAL)
| public void crear() {
| log.info(newEmployee, beginning
conversation.id=#0,Conversation.instance().getId()) ;
| employee = new Employee(company, ) ;
| }
|
| @End
| public void delete() {
| company.getEmployees().remove(employee) ;
| entityManager.remove(employee) ;
| entityManager.flush() ;
| log.info(deleted employee #0, conversation.id:
#1,employee,Conversation.instance().getId()) ;
| facesMessages.add(Employee deleted successfully.) ;
| }
|
| public void save() {
| boolean valid = validateEmployee(employee) ;
| ok = false ;
| if(valid) {
| //agregate to collection only if new employee
| if(employee.getId()==null)
| company.getEmployees().add(employee) ;
|
| entityManager.persist(employee);
| facesMessages.add(Employee data saved ok);
| ok = true;
| entityManager.flush() ;
|
| log.info(finishing nested conversation
#0,Conversation.instance().getId());
| //conversation ended programmatically because in case
validation fails the page is redisplayed
|
[jboss-user] [JBoss Seam] - help with this entity been updated implicitly
Hello everybody,
I have this use case: an item is selected from a list, the edit page for that
item is shown, if the save action is invoked some validation is done inside
that same method, only if everything is ok I call persist, otherwise the same
edit page is redisplayed.
Everything goes fine except one thing: even if validation fails (so I don't
call persist) the entity is been updated, why? how? where? I reproduce some
code:
@Scope(ScopeType.CONVERSATION)
| @Name(courseEditor)
| @Restrict(#{identity.loggedIn and s:hasRole('Administrator')})
| public class CourseEditorAction {
|
| @Begin(nested=true)
| public void select(Course selectedCourse) {
| course = entityManager.merge(selectedCourse);
| }
|
| public void save() {
| if(course.getStartDate()!=null course.getFinishDate()!=null
| course.getStartDate().compareTo(course.getFinishDate())=0)
{
| facesMessages.addToControl(finishDate,must be posterior to
start date) ;
| ok = false ;
| }
| else {
| sede = entityManager.merge(sede) ;
| if(course.getId()==null)
| //my way to update parent collection of courses
(only if course is new)
| sede.getCourses().add(course) ;
| entityManager.persist(course);
| facesMessages.add(Course saved successfully);
| //I only finish conversation in case the edition use
case finish
| Conversation.instance().end() ;
| ok = true;
| }
| }
|
| @End
| public void cancel() {}
|
| public boolean isOk() {
| return ok ;
| }
| }
page view-id=/admin/courseEditor.xhtml
| navigation from-action=#{courseEditor.save}
| rule if=#{courseEditor.ok}
| redirect view-id=/admin/sedeEditor.xhtml/
| /rule
| rule if=#{not courseEditor.ok}
| redirect view-id=/admin/courseEditor.xhtml/
| /rule
| /navigation
| navigation from-action=#{courseEditor.cancel}
| redirect view-id=/admin/sedeEditor.xhtml/
| /navigation
|
| /page
if finish date value is before start date, the page is redisplayed, the message
describing the incorrect input is shown, but at that moment the course already
has been updated :S
I though maybe select method was been called every time the page is redisplayed
and since there is a merge that was causing the update, but no: select method
is called (makes sense) only first time.
so the updating is invoked somewhere else...
any help is much appreciated
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[jboss-user] [JBoss Seam] - Re: @End commits entity changes!
I think this is related to the flush mode of the conversation, look for @Begin(flushMode=FlushModeType.MANUAL), I think that normally when conversation ends everything is flushed autommatically. I just posted a somewhat related question but there the conversation is not finished and yet I'm having an update, ok, no more crossposting :P View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4110995#4110995 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4110995 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: help with this entity been updated implicitly
it wasn't enough to not end the conversation, I must set manual flush mode to avoid the updating when method ends and call entityManager.flush() when I want data to be saved. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4111057#4111057 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4111057 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: help with this entity been updated implicitly
ashamed to admit, another case of RTFM View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4111058#4111058 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4111058 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: Why control IDs in validation messages?
I experienced this too, I started from jpa example. At first the message displayed correct (with no Id). Although it doesn't seems related (and I didn't have time find out exactly the reason) I think it was about messing around with the default language and not including the proper messages_XX.properties in WEB-INF/classes. After correcting that error in my ant script I noticed the ids in the messages were gone, but again, didn't have a chance to confirm if that was in fact the reason. I suspected of that because other related things remained equal. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4111059#4111059 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4111059 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - question about components and persistence
Hello, I'm having problems to get same during method invocation, I mean:
there is the class User which has a collection of items.
- One instance of user is maintained during session,
- then there is this action method which adds an item to the user's collection
- there is also another method which ask question about items in the users
collection,
the problem is that the user instance is not the same in those methods, so the
collection has not the same data. I've tried using merge at the beginning of
those methods but an OptimisticLockException is thrown. here is my code so far:
@Scope(ScopeType.CONVERSATION)
| @Name(exam)
| @Restrict(#{identity.loggedIn})
| public class ExamAction implements Evaluacion {
| //injected from user in session
| @In(required = true)
| @Out
| private User user;
|
|
| @End
| public void calificate() {
| //... calculate calification, then:
| Calification cal = user.setCalificacion(course, points) ;
|
| Calification mergedcal = entityManager.merge(cal) ;
| entityManager.persist(cal) ;
| }
|
| public boolean isExamDone() {
| // this throws OptimisticLockException, casued by
StaleObjectStateException
| //but without this the user (hashcode) is different than the
one injected in method calificate
| //so I'm confused :S
|
| User mergedUser = entityManager.merge(user) ;
| Calification cal = mergedUser.findCalificacion(course) ;
| return cal.getCalificacionEvaluacion()!=null ;
| }
| }
|
@Entity
| @Table(name = user, catalog = test1)
| public class User implements java.io.Serializable {
|
| @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy
= user)
| public SetCalification getCalificacions() {
| return this.calificacions;
| }
|
| public void setCalificacions(SetCalification calificacions) {
| this.calificacions = calificacions;
| }
|
| public Calification findCalificacion(Course course) {
| for(Calification c : getCalificacions())
| if(c.getId().getIdCourse()==course.getId())
| return c ;
| throw new NoSuchElementException(
| new StringBuilder(52)
| .append(course )
| .append(course.getId())
| .append(, not found for user )
| .append(getId()).toString()) ;
| }
|
| public Calification setCalificacion(Course course, int points) {
| Calification c = null ;
| try {
| c = findCalificacion(course) ;
| } catch(NoSuchElementException e) {
| c = new Calification(this, course, 0) ;
| getCalificacions().add(c) ;
| }
|
| c.setPoints(points) ;
| return c ;
| }
| }
so the question is, how can I modify the user's collection of items and access
same collection every time (I tried outjecting user but no effect) or how can I
synchronize those objects before using them?
please, I really appreciate some advice here
regards
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[jboss-user] [JBoss Seam] - Re: question about components and persistence
I could, of course, load the user and collection from database every time, but I don't think this is the best way View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4109965#4109965 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4109965 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: question about components and persistence
I think I've found the precise answer in last reply of http://www.jboss.com/index.html?module=bbop=viewtopict=103356 the @Out scope doesn't rely on the scope of @In, it must declared individually: @Out(scope=ScopeType.SESSION) that's why I wasn't reaching same instance between calls great forum! View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4109974#4109974 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4109974 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - pattern to form urls for resources requested
Hello, I've read using absolute paths for reaching views is the recommended way, however given that webapp context path is variable some folks have resorted to this technique to resolve contextpath: http://www.jboss.com/index.html?module=bbop=viewtopict=120560 But what about URLs to resources defined inside .css files? EL expressions won't be evaluated there, right?. Should I stick to static references to ContextPath? View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4108746#4108746 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4108746 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - question about programmatically accessing seam component
Hello,
I'm in the need of programmatically accessing (I mean not using @In annotation)
a component which is created with @Factory . But neither this:
| Course course = (Course)Contexts.lookupInStatefulContexts(course) ;
|
nor this, is working:
Course course=(Course)Contexts.getSessionContext().get(course) ;
Both methods return null, as if the factory method is not been called. Is this
correct behavior or could it be something in my code, I reproduce here the
related parts.
By the way I'm not able to inject the component because its factory method is
declared inside a component with @Restrict(#{identity.loggedIn}) declared,
but I'm trying to use it when no login has happened yet. But just before I plan
to use the login ocurrs, so at that time the @Restrict should not be a problem.
If I try to use @In the injection tries to occur to early.
I think I better wrote the code:
firstly the component with the declared factory
| @Name(courseManager)
| @Scope(ScopeType.SESSION)
| @Restrict(#{identity.loggedIn})
| public class CourseManagerAction implements CourseManager {
|
| @Factory
| public Course getCourse() {
| // gets default single course
| Course course = (Course) entityManager
| .createQuery(select c from Course c).getSingleResult();
| return course;
| }
| }
|
then the case where I want to use the course component:
| @Scope(ScopeType.EVENT)
| @Name(register)
| public class RegisterAction implements Register {
|
| public void register() {
| //here the user register itself
| //after that do auto-login
| identity.authenticate() ;
|
| //now I want to access the course
| Course course =
(Course)Contexts.getSessionContext().get(course) ;
|
| //but course is null
| //why? shouldn't this call be similar to: @In Course course ??
| }
| }
|
any comments?
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[jboss-user] [JBoss Seam] - Re: question about programmatically accessing seam component
Indeed, it works thanks! View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4107213#4107213 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4107213 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - html element id appearing on validation message
Perhaps this is simple but I can not find how to stop the html element id from
appearing in the validation message each time the validation ocurrs, that is, I
have a template like this (taken from some seam example):
| div class=prop
| s:label styleClass=name #{invalid?'errors':''}
| ui:insert name=label /
| s:span styleClass=required rendered=#{required}*/s:span
| /s:label
| span class=value #{invalid?'errors':''}
| s:validateAll
| ui:insert /
| /s:validateAll
| /span
| s:message styleClass=error errors/
| /div
|
which I use as:
| s:decorate id=decorateAddress template=/layout/edit.xhtml
| ui:define name=labelAddress:/ui:define
| h:inputText id=address value=#{register.info.address}
required=true
| a4j:support event=onblur reRender=decorateAddress/
| /h:inputText
| /s:decorate
|
when the validation message appears next to the control it always includes the
html element id, something like this:
| registerForm:decorateAddress:address: Validation error: required value
|
But I would like NOT to show the registerForm:decorateAddress:address part in
the validation message, how to do so?
thanks in advance for any help
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[jboss-user] [JBoss Seam] - Re: how to declare Entity property not mapped to DB
I got it: @Transient! :) View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4102872#4102872 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4102872 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - how to declare Entity property not mapped to DB
Hello, I would like to declare a new property in some entity, which should not be mapped to the database (this property holds temporal data), I search for something like @Volatile but no luck. I'll deeply appreciate any help, regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4102869#4102869 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4102869 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - dinamically creating form elements
Hello, Could someone give me advise on this, please: Is it possible to dinamically append new controls (textarea, checkbox, radiobutton) to a form during user interaction? I mean, those newly created elements don't have yet a backing bean in server side, is there a way to create a dynamic bean or equivalent? regards View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4100028#4100028 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4100028 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: hidden exception issue?
baz: I did that when I first encounter the problem and found start method was
called just once.
I also asigned some values to the properties of newUser inside tehe start
method, like:
newUser.setName(testing) ;
and that didn't throw the referred exception.
The exception was been thrown by having a reference to the newUser object, for
instance:
h:inputText value=#{newUser.name} required=true /
I compared once and again the code with seamspace (you can see it is practicaly
the same) but could find my mistake. Of course, seamspace works fine in my
machine. Almost only difference is the entity User/Member class.
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[jboss-user] [JBoss Seam] - Re: Seam Gen Problem
To find out where is looking for the jar driver try using filemon by sysinternals (I hope I'm not offending any rule by talking about third party product, it's free though) View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4017482#4017482 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4017482 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: hidden exception issue?
Nop, I have client side state saving specified. I worked around the problem by not using the factory method and exposing newUser as a property of the bean and it worked. By doing so I'm not explicitly creating a conversation and I know if there is an error somewhere in the code it will bite me again, but for now I'm good. I just wonder which other (besides client side state saving) causes of error might I had. regards, View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4017430#4017430 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4017430 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - hidden exception issue?
Hello, I'm having this problem with a scenario similar to seamspace
registration. This exception is happening:
java.lang.IllegalStateException: begin method invoked from a long running
conversation, try using @Begin(join=true)
it throws every time I request register.xhtml, it doesn't render since the
first request to the page.
It happens even if I just request that page directly from a fresh browser (I
mean, no previous navegation in the application was performed)
The problem disappears if I delete any reference to newMember object. To make
it less confusing here is the actual code:
The SFSB:
@Stateful
| @Name(register)
| public class RegistroAction implements Register {
|
| @Logger Log log ;
|
| @In EntityManager entityManager ;
|
| @In(required = false)
| private User newUser ;
|
| @In
| private Identity identity;
|
| @Factory(newUser) @Begin
| public void start() {
| newUser = new User();
| }
|
| private String repassword;
|
| public String getRepassword() {
| return this.repassword;
| }
|
| public void setRepassword(String repassword) {
| this.repassword = repassword;
| }
| ...
|
The page:
ui:define name=body
| h:messages globalOnly=true styleClass=message /
| h:form
| s:validateAll
| divNombre: h:inputText
value=#{newUser.name} required=true / /div
| /s:validateAll
| div class=actionButtons
| h:commandButton value=Next
action=#{register.next} /
| /div
| /h:form
| /ui:define
Note that If I just remove #{newUser.name} the page is loaded properly
The entity bean declaration:
@Entity
| @Table(name = user)
| @NamedQueries( {
| @NamedQuery(name = User.findById, query = SELECT p FROM User p WHERE
p.id = :id),
| @NamedQuery(name = User.findByName, query = SELECT p FROM User p
WHERE p.name = :name),
| @NamedQuery(name = User.findByEmail, query = SELECT p FROM User p
WHERE p.email = :email),
| @NamedQuery(name = User.findByLoginAndPassword, query = SELECT p
FROM User p WHERE p.login = :login and p.password = :password)
| })
| public class User implements Serializable {
|
| @Id
| @GeneratedValue(strategy = GenerationType.AUTO)
| @Column(name = id, nullable = false)
| private Integer id;
|
| @Column(name = name, nullable = false)
| @NotNull
| @Length(max=150)
| private String name;
|
| @Column(name = email, nullable = false)
| @NotNull
| @Email
| @Length(max=50)
| private String email;
|
| @Column(name = login, nullable = false)
| @NotNull
| @Length(max=50)
| private String login;
|
| @Column(name = password, nullable = false)
| @NotNull
| @Length(min=5,max=50)
| private String password;
|
| @OneToOne(cascade = CascadeType.ALL, mappedBy = contact)
| private Club club ;
|
| @JoinColumn(name = clientId, referencedColumnName = id)
| @ManyToOne
| private Client client;
|
| @Version public int version ;
|
| public User() {
| }
|
| public User(Integer id) { this.id = id; }
|
| /** id */
| public Integer getId() { return this.id; }
|
| public void setId(Integer id) { this.id = id; }
|
| /** nombre */
| public String getNombre() { return this.name; }
|
| public void setNombre(String name) { this.name = name; }
|
| /** email */
| public String getEmail() { return this.email; }
|
| public void setEmail(String email) { this.email = email; }
|
| /** login */
| public String getLogin() { return this.login; }
|
| public void setLogin(String login) { this.login = login; }
|
| /** password */
| public String getPassword() { return this.password; }
|
| public void setPassword(String password) { this.password = password; }
|
| /** client */
| public Client getClient() { return this.client; }
|
| public void setClient(Client client) { this.client = client; }
|
| /** club */
| public Club getClub() { return club ; }
|
| public void setClub(Club club) { this.club = club ; }
|
| @Override
| public int hashCode() {
| int hash = 0;
| hash += (this.id != null ? this.id.hashCode() : 0);
| return hash;
| }
|
| @Override
| public boolean equals(Object object) {
| // TODO: Warning -
[jboss-user] [JBoss Seam] - Re: how to redirecto back to intented page after login
I couln't make these feature work until I change its scope from ScopeType.CONVERSATION to ScopeType.SESSION I noticed that it wasn't the same instance of Redirect component which has been called in captureCurrentView and returnToCapturedView, so I realized it was because of the scope. I just don't know if will be any undesirable side effects because of the change of scope. Is there other way to make this work? View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4016048#4016048 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4016048 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to redirecto back to intented page after login
Indeed, I had a end-conversation/ tag. Thank you very much. View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4016113#4016113 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4016113 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - how to redirecto back to intented page after login
When the user tries to access a protected page, I want to redirect to the login page if he hasn't logged in yet. And then, after successful login, redirect back to that given page. Is there a setting to achieve this? Otherwise, is the best solution to implement a javax.servlet.Filter ? regards, Gerardo View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4015448#4015448 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4015448 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to redirecto back to intented page after login
Thanks a lot for your reference. It's quite impressive the evolution speed of the framework. By the way, the manual of 1.1.6GA doesn't contain such section (12.2.6) neither the seamspace example includes those nice tags. Regards, View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4015647#4015647 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4015647 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to trace failed entityManager injection?
I know it seems trivial but I can not see where the problem is, please someone View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4012892#4012892 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4012892 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to trace failed entityManager injection?
I'm very ashamed, it's all about the create property @In(create=true) EntityManager entityManager ; Wish I could delete the track of my late night foolness :) View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4013123#4013123 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4013123 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - how to trace failed entityManager injection?
I'm using seam 1.1.5GA, and create a project with seam-gen. The authenticator component is generated automatically. just filled the sql script (-dev.sql) to populate the database and when trying to test the login page this exception is thrown: org.jboss.seam.RequiredException: In attribute requires value for component: authenticator.entityManager The relevant part of Authenticator.java is: @In EntityManager entityManager ; I have the same name in components.xml (all generated by seam-gen): core:managed-persistence-context name=entityManager persistence-unit-jndi-name=java:/hermes2EntityManagerFactory/ Also I checked with jndi viewer and the datasource and entityManagerFactory were published successfuly: Java: Namespace | +- hermes2EntityManagerFactory (class: org.jboss.ejb3.entity.InjectedEntityManagerFactory) | +- hermes2Datasource (class: javax.sql.DataSource) No other exception before that one. Just little before, the console showed some unrelated (I think) errors , all identical to this one: 00:05:25,656 ERROR [STDERR] 8/02/2007 12:05:25 AM com.sun.facelets.compiler.TagLibraryConfig loadImplicit Finally, I include some lines from server.log which made me think everything was ok (except the last one :P ): | 2007-02-07 23:59:26,859 DEBUG [org.jboss.seam.deployment.Scanner] found: org/jboss/seam/core/EntityManagerFactory.class | ... | 2007-02-07 23:59:28,593 INFO [org.jboss.seam.Component] Component: entityManager, scope: CONVERSATION, type: JAVA_BEAN, class: org.jboss.seam.core.ManagedPersistenceContext | ... | 2007-02-07 23:59:28,609 DEBUG [org.jboss.seam.Component] entityManager.persistenceUnitJndiName=java:/hermes2EntityManagerFactory | ... | 2007-02-08 00:05:43,968 DEBUG [org.jboss.seam.Component] trying to inject with hierarchical context search: entityManager | ... | 2007-02-08 00:05:43,984 ERROR [org.jboss.seam.core.Exceptions] redirecting to debug page | org.jboss.seam.RequiredException: In attribute requires value for component: authenticator.entityManager | Excuse such a verbose post but I just don't have any clue. how could I check why is failing the entityManager injection?? help please. please!! View the original post : http://www.jboss.com/index.html?module=bbop=viewtopicp=4012858#4012858 Reply to the post : http://www.jboss.com/index.html?module=bbop=postingmode=replyp=4012858 ___ jboss-user mailing list jboss-user@lists.jboss.org https://lists.jboss.org/mailman/listinfo/jboss-user
[jboss-user] [JBoss Seam] - Re: how to trace failed entityManager injection?
I reproduce the whole content here, keep in mind that I had not tampered that
file at all since seam-gen created it.
core:init debug=true jndi-pattern=hermes2/#{ejbName}/local/
|
|core:manager concurrent-request-timeout=500
| conversation-timeout=12
| conversation-id-parameter=cid
| conversation-is-long-running-parameter=clr/
|
|core:pages no-conversation-view-id=/home.xhtml/
|
|core:managed-persistence-context name=entityManager
|
persistence-unit-jndi-name=java:/hermes2EntityManagerFactory/
|
|core:ejb installed=false/
|
|drools:rule-base name=securityRules
|drools:rule-filesvalue/security.drl/value/drools:rule-files
|/drools:rule-base
|
|security:identity authenticate-method=#{authenticator.authenticate}/
View the original post :
http://www.jboss.com/index.html?module=bbop=viewtopicp=4012863#4012863
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