Re: [Resin-interest] More on include()/forward() issue.
Ilya Kasnacheev wrote (2008-03-11 11:35): or would increasing the buffer (response.setBufferSize()) prevent the response from being comitted until the included forward has been issued??? This way is too like hack. What if we'll fill this buffer prematurely anyway? If the amount of data written before any forwards is deterministic there is no problem. But if you cannot know beforehand how many forwards there will be, or how much data there will be in each, it's risky. What about my anonymous wrapper? See reply to original post. It may work if you are certain there will be no flushing to the client before a forward(). Nope, there would be a lot of flushing before forward(). Because, forward() final destination isn't going to print page from scratch. Instead it is going to print a fragment of page to be include()d. After it will return, the rest of page() will be printed. Also, there can be quite a few such (include() - forward() - forward() - print()) sessions. What I meant was whether there will under any circumstances be a forward on the original - non-dispatched - request. (Such as displaying an error page if an error occurs deep within the include hierarchy) ___ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
Re: [Resin-interest] small question about entity ejb
On Mar 11, 2008, at 6:28 AM, Riccardo Cohen wrote:
After some new tests, I found something that works :
if I do :
homeobj=m_manager.find(homeinfo.class,theid);
homeobj.setTitle(title);
the object is saved
but if I use the homeobj that comes from
Query hqr=m_manager.createQuery(select h from homeinfo h where
h.id_user=+id_user);
and I try to call setTitle, then the object is not saved.
I don't understand why, can somebody explain me please ? (or give a
link
to the right doc...)
Can you turn on the log for this to make sure it's in a transaction?
The @TransactionAttribute must be on a protected or public method, by
the way. There was a missing validation that didn't report an error
on a private method.
I've just tested that case for the Query inside a transaction and the
changed data is getting properly updated in my example.
e.g.
@In UserTransaction _ut;
void foo()
{
_ut.begin();
query = ...
homeobj = (Home) query.getSingleResult();
homeobj.setTitle(new-title);
_ut.commit();
}
or
@TransactionAttribute
protected void foo()
{
query = ...;
homeobj = (Home) query.getSingleResult();
homeobj.setTitle(new-title);
}
-- Scott
Thanks a lot.
Riccardo Cohen wrote:
Hi again,
I tried @TransactionAnnotation but it generated frequent errors
like this :
[10:44:42.851] {http--8000-2} error: cannot read: mp/
adminservlet.java
[10:44:42.851] {http--8000-2} 1 error
the select still work but no update
I tried then with the UserTransaction method, but there was no
update. I
looked at the amber-basic-field example, and found that even if the
_uTrans was defined, it was not used, instead I found
_manager.getTransaction(), so I tried with that, and still no update.
but now I can see in the finer log for sql :
[11:18:22.968] {http--8000-10} mp_db_pool.0:setAutoCommit(false)
[11:18:22.968] {http--8000-10} mp_db_pool.0:commit()
[11:18:22.969] {http--8000-10} mp_db_pool.0:setAutoCommit(true)
Which means that the transaction is being used, but no update when
doing
setTitle()
I must be missing something, because the sample works all right. I
re-read all conf, and found nothing strange. The only difference
seems
to be that I use jdbc to mysql instead of jdbc/resin embedded db.
Thanks for any info.
Attached some files of my little test.
Scott Ferguson wrote:
On Mar 10, 2008, at 1:29 AM, Riccardo Cohen wrote:
Thanks a lot, I understand that I need a transaction now, while
before
it could work without this... I have no idea of how to do that.
I noticed that in the doc of amber
(http://caucho.com/resin/doc/amber.xtp) there was a
@TransactionAnnotation but this makes a syntax error !
Thanks to eclipse I found a @TransactionAnn, I added it at the
beginning
of my function definition, but this does not change (no update
generated)
It should be @TransactionAttribute. I'm fixing the docs.
The @TransactionAttribute is the easiest method. You need to put it
on a Resin-IoC-aware object, e.g. a bean or an EJB stateless bean
or a servlet. If you put it on an arbitrary class, it won't do
anything.
You can also use UserTransaction to do essentially the same thing:
class MyFoo {
@In UserTransaction _ut;
void myStuff()
{
_ut.begin();
try {
...
} finally {
ut.commit();
}
}
That's essentially identical to
@TransactionAttribute void myStuff()
{
...
}
If you turn logging level=fine, you'll see the transaction
begin()/
commit(). So you can use the log to make sure the transactions are
working properly.
-- Scott
Is there any doc about this ?
Thanks
Daniel López wrote:
Hi again,
Some quick tests show that no persist() or merge() should be
necessary
to update an entity inside a persistent context. I tested with
Hibernate
and Amber as persistence providers and in both cases, nothing was
necessary. That was using Resin 3.1.5 and RESOURCE_LOCAL as
transaction
type, which means that the problem might be with the container
managed
transactions.
S!
D.
Daniel López escribió:
AFAIK, using merge should not be necessary unless the entity
has been
updated outside a persistent context and then needs to be
synchronised
back with the DB contents. persist() is just for new entities so
reading
the docs, updating an entity inside a persistent context should
require
no action. Unless an exception is thrown, of course ;).
I'm going to do some tests...
S!
D.
Matt Johnston escribió:
I think you will need to use either the persist() or merge()
methods of
the EntityManager in order to save your data to the database. In
your
case since you are updating an existing record, you will need to
use:
m_manager.merge(homeobj)
Matt
Riccardo Cohen wrote:
Hi
I used to play with entity ejb with resin 3.0 with no problem.
Now in
3.1.5 I have this code :
@PersistenceContext(name=public) private
[Resin-interest] Quercus presentation at SF Java Meetup, April 7
I and some of the Quercus engineers will be presenting Quercus at the San Francisco Java Meetup Group on April 7. The meetup is at Marakana, an IT training company, which will let us do a hands-on, interactive tutorial. Space is limited, so you'll need to sign up here: http://java.meetup.com/174/calendar/7458664/ There's more information on that site as well, but to give you the highlights, we're going to show how to: * Set up WordPress on Quercus * Expose a Java objects and methods to PHP * See how to use the power of Java sessions in PHP I hope to see you all there! Best, Emil Emil Ong Chief Evangelist Caucho Technology, Inc. Tel. (858) 456-0300 mailto:[EMAIL PROTECTED] http://blog.caucho.com/ Caucho: Reliable Open Source -- Resin: application server -- Quercus: PHP in Java -- Hessian Web Services ___ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
[Resin-interest] Quercus with phpbb3
Scott, I've been trying multiple times to get Quercus to run phpbb3 properly and I continue to have problems with getting the generated cached template files to render consistently. After a server restart, things work for a few pages until it hits some sort of snag. This consistently happens after I tried accessing different pages that requires the template caching mechanism to kick in. Once that happens, the comments in the template fails to get parsed afterwards. Turning on full debugging output (finest level) produces exceptions that are not entirely helpful: [2008/03/11 20:18:52.873] idle PoolItem[jdbc/mpm, 4,ManagedConnectionImpl] [2008/03/11 20:18:52.874] com.caucho.quercus.QuercusExitException [2008/03/11 20:18:52.874] at com.caucho.quercus.env.Env.exit(Env.java:3852) [2008/03/11 20:18:52.874] at com.caucho.quercus.expr.ExitExpr.eval(ExitExpr.java:82) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java: 99) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.Function.callImpl(Function.java:354) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.Function.call(Function.java:294) [2008/03/11 20:18:52.874] at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:182) [2008/03/11 20:18:52.874] at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:126) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java: 99) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.Function.callImpl(Function.java:354) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.Function.call(Function.java:294) [2008/03/11 20:18:52.874] at com.caucho.quercus.expr.FunctionExpr.evalImpl(FunctionExpr.java:182) [2008/03/11 20:18:52.874] at com.caucho.quercus.expr.FunctionExpr.eval(FunctionExpr.java:126) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.ExprStatement.execute(ExprStatement.java:64) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.BlockStatement.execute(BlockStatement.java: 99) [2008/03/11 20:18:52.874] at com.caucho.quercus.program.QuercusProgram.execute(QuercusProgram.java: 239) [2008/03/11 20:18:52.874] at com.caucho.quercus.page.InterpretedPage.execute(InterpretedPage.java:70) [2008/03/11 20:18:52.874] at com.caucho.quercus.page.QuercusPage.executeTop(QuercusPage.java:119) [2008/03/11 20:18:52.874] at com .caucho .quercus.servlet.ResinQuercusServlet.service(ResinQuercusServlet.java: 146) [2008/03/11 20:18:52.874] at com.caucho.quercus.servlet.QuercusServlet.service(QuercusServlet.java: 353) [2008/03/11 20:18:52.874] at javax.servlet.http.HttpServlet.service(HttpServlet.java:91) [2008/03/11 20:18:52.874] at com .caucho .server.dispatch.ServletFilterChain.doFilter(ServletFilterChain.java: 103) [2008/03/11 20:18:52.874] at com .caucho .server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:181) [2008/03/11 20:18:52.874] at com .caucho .server.dispatch.ServletInvocation.service(ServletInvocation.java:266) [2008/03/11 20:18:52.874] at com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:435) [2008/03/11 20:18:52.874] at com.caucho.server.port.TcpConnection.run(TcpConnection.java:603) [2008/03/11 20:18:52.874] at com.caucho.util.ThreadPool $Item.runTasks(ThreadPool.java:721) [2008/03/11 20:18:52.874] at com.caucho.util.ThreadPool $Item.run(ThreadPool.java:643) [2008/03/11 20:18:52.874] at java.lang.Thread.run(Thread.java:595) I wish the exception output would be a bit more information so I know where the exception occurred. Aside from that, I've tried different file caching mechanisms that is supported by phpbb3's newest SVN trunk source tree. I tried out APC and Memcache. APC is still giving me similar problems but appeared more consistent than the default file one. Memcache has problems starting up so it appears that memcache is still not fully implemented yet. Tried with compile off and on. That didn't work either. Are there any plans to get phpbb3 to work properly? I guess if I get some time, the only way is to run quercus within Eclipse or Idea and do a full break debug to see what's wrong. Thanks, Chris ___ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
[Resin-interest] Resin-3.1 Eclipse Plugin
Sam, Scott, I'm looking for the Eclipse Plugin for Resin-3.1 from Caucho. In the Bug 1292 there is a note: q sam 11-01-07 09:12 Caucho will provide an eclipse plugin that integrates with the jst and wst projects of eclipse. Installation instructions included in the release notes for 3.1.4 /q But on the Release Notes page for 3.1.4 ( http://caucho.com/resin/changes/resin-3.1.4.xtp) there is nothing mentioned about it. The only thing I was able to find in the Caucho Wiki was this Link http://wiki.caucho.com/Integrating_with_Eclipse which refers to two non Caucho pages. The first link opens a page where a raw JSP is served and the second link only offers an Eclipse plugin for 3.0 (qNote: This plug-in needs some update for Resin 3.1. It only supports Resin 3.0./q) So, where can I find appropriate information about the Caucho Eclipse Plugin? Regards, Steffen ___ resin-interest mailing list resin-interest@caucho.com http://maillist.caucho.com/mailman/listinfo/resin-interest
Re: [Resin-interest] small question about entity ejb
I found what was wrong, the begin() was not at the right place :
query = ...
homeobj = (Home) query.getSingleResult();
_ut.begin();
homeobj.setTitle(new-title);
_ut.commit();
Sorry for the trouble. I'll write a little sample to clarify all that
(for me at least)
The @TransactionAttribute still does the error cannot read:
mp/adminservlet.java
this is the function :
@TransactionAttribute
public boolean set_homeinfo(int id_user,String title)
Scott Ferguson wrote:
Can you turn on the log for this to make sure it's in a transaction?
The @TransactionAttribute must be on a protected or public method, by
the way. There was a missing validation that didn't report an error
on a private method.
I've just tested that case for the Query inside a transaction and the
changed data is getting properly updated in my example.
e.g.
@In UserTransaction _ut;
void foo()
{
_ut.begin();
query = ...
homeobj = (Home) query.getSingleResult();
homeobj.setTitle(new-title);
_ut.commit();
}
or
@TransactionAttribute
protected void foo()
{
query = ...;
homeobj = (Home) query.getSingleResult();
homeobj.setTitle(new-title);
}
-- Scott
--
Très cordialement,
Riccardo Cohen
---
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