Re: session is NULL
I initially had a constructor that accepted a session. That worked fine.
Then, I took out the constructor and simply injected the session. That is
working fine as well.
Now, I am injecting my delegate as service into my page. The DAO is injected to
my delegate. Then, the session is injected into my DAO. That is working well
for me. (No constructors.)
Best Regards.
--Anas Mughal
http://anas-mughal.com
--- On Thu, 11/11/10, Everton Agner wrote:
From: Everton Agner
Subject: Re: session is NULL
To: "Tapestry users"
Date: Thursday, November 11, 2010, 8:23 AM
> @Inject is for pages. Make your DAO a Tapestry service and inject the
> session to it via its constructor.
>
> Kalle
I guess not... Since the DAO is a service, you can either @Inject fields,
pass thru construtuctor call or build them.
___
Everton Agner Ramos
2010/11/10 Anas Mughal
> Yes, that worked. I wish to thank everyone for their help!
>
> Tapestry is great!
> Coming from the Spring world, I do not miss those verbose Spring
> configuration files!
>
> --Anas Mughal
> http://anas-mughal.com
>
>
> --- On Wed, 11/10/10, Rich M wrote:
>
> From: Rich M
> Subject: Re: session is NULL
> To: "Tapestry users"
> Date: Wednesday, November 10, 2010, 10:34 AM
>
> On 11/10/2010 03:42 AM, Anas Mughal wrote:
> > I have setup my DAO as a Tapestry service in the AppModule as:
> > public class AppModule
> > {
> > public static void bind(ServiceBinder binder)
> > {
> > binder.bind(BranchDAO.class, BranchHibernateDAO.class);
> >
> > }
> > }
> > Then, I try to inject the session as follows:
> > public class BranchHibernateDAO implements BranchDAO {
> >
> > �...@inject
> > private Session session;
> >
> >
> > @SuppressWarnings("unchecked")
> > public Object find( Class c , BigDecimal id)
> > {
> > return session.get(c, id);
> > }
> >
> > }
> >
> > I still get a NULL session.
> >
> >
> >
> >
> >
> >
> >
> > Following the suggestion by Kalle, I injected the session to a page.
> Then, passed the session to my DAO in the contructor. That worked! However,
> I would rather keep the code cleaner by injecting the session directly into
> the DAO.
> >
> To use the DAO, you will want the following setup.
>
> public class BranchHibernateDAO implements BranchDAO {
>
> private Session session;
>
> public BranchHibernateDAO(Session session){
>
> this.session = session;
>
> }
>
> ...
>
> }
>
>
> then in your page class:
>
> @Inject
>
> private BranchHibernateDAO bhdao;
>
>
> You do not need to initialize the BranchHibernateDAO yourself. Tapestry-IoC
> will initialize the BranchHibernateDAO lazily behind the scenes the first
> time you access it in the web application. In this case, that would be when
> you navigate to the page relating to your page class, where the DAO is
> injected.
>
> The convention for services, is that when they are setup in the bind method
> of the AppModule (or whatever your module is called), Tapestry will "inject"
> the appropriate objects to its constructor when it initializes the service.
>
> This convention will keep your page classes cleaner.
> > Any suggestion would be greatly appreciated.
> > --- On Wed, 11/10/10, Kalle Korhonen wrote:
> >
> >
> > From: Kalle Korhonen
> > Subject: Re: session is NULL
> > To: "Tapestry users"
> > Date: Wednesday, November 10, 2010, 1:48 AM
> >
> >
> > @Inject is for pages. Make your DAO a Tapestry service and inject the
> > session to it via its constructor.
> >
> > Kalle
> >
> >
> > On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal
> wrote:
> >
> >> I have setup my Tapestry project using the Maven archetype. Then, I
> setup my hibernate.cfg.xml file with references to my hibernate mapping
> files. (I am not using annotations for hibernate.)
> >>
> >> Now, I have setup a simple DAO object to try to retrieve an object from
> the database:
> >>
> >> public class BranchDAO {
> >>
> >> @Inject
> >> private Session session;
> >>
> >> @SuppressWarnings("unchecked")
> >> public Object find( Class c , BigDecimal id)
> >> {
> >> return session.get(c, id); // session is NULL here
> >> }
> >> }
> >>
> >>
> >>
Re: session is NULL
> @Inject is for pages. Make your DAO a Tapestry service and inject the
> session to it via its constructor.
>
> Kalle
I guess not... Since the DAO is a service, you can either @Inject fields,
pass thru construtuctor call or build them.
___
Everton Agner Ramos
2010/11/10 Anas Mughal
> Yes, that worked. I wish to thank everyone for their help!
>
> Tapestry is great!
> Coming from the Spring world, I do not miss those verbose Spring
> configuration files!
>
> --Anas Mughal
> http://anas-mughal.com
>
>
> --- On Wed, 11/10/10, Rich M wrote:
>
> From: Rich M
> Subject: Re: session is NULL
> To: "Tapestry users"
> Date: Wednesday, November 10, 2010, 10:34 AM
>
> On 11/10/2010 03:42 AM, Anas Mughal wrote:
> > I have setup my DAO as a Tapestry service in the AppModule as:
> > public class AppModule
> >{
> > public static void bind(ServiceBinder binder)
> > {
> > binder.bind(BranchDAO.class, BranchHibernateDAO.class);
> >
> > }
> >}
> > Then, I try to inject the session as follows:
> >public class BranchHibernateDAO implements BranchDAO {
> >
> > @Inject
> > private Session session;
> >
> >
> >@SuppressWarnings("unchecked")
> > public Object find( Class c , BigDecimal id)
> > {
> > return session.get(c, id);
> > }
> >
> >}
> >
> > I still get a NULL session.
> >
> >
> >
> >
> >
> >
> >
> > Following the suggestion by Kalle, I injected the session to a page.
> Then, passed the session to my DAO in the contructor. That worked! However,
> I would rather keep the code cleaner by injecting the session directly into
> the DAO.
> >
> To use the DAO, you will want the following setup.
>
> public class BranchHibernateDAO implements BranchDAO {
>
> private Session session;
>
> public BranchHibernateDAO(Session session){
>
> this.session = session;
>
> }
>
> ...
>
> }
>
>
> then in your page class:
>
> @Inject
>
> private BranchHibernateDAO bhdao;
>
>
> You do not need to initialize the BranchHibernateDAO yourself. Tapestry-IoC
> will initialize the BranchHibernateDAO lazily behind the scenes the first
> time you access it in the web application. In this case, that would be when
> you navigate to the page relating to your page class, where the DAO is
> injected.
>
> The convention for services, is that when they are setup in the bind method
> of the AppModule (or whatever your module is called), Tapestry will "inject"
> the appropriate objects to its constructor when it initializes the service.
>
> This convention will keep your page classes cleaner.
> > Any suggestion would be greatly appreciated.
> > --- On Wed, 11/10/10, Kalle Korhonen wrote:
> >
> >
> > From: Kalle Korhonen
> > Subject: Re: session is NULL
> > To: "Tapestry users"
> > Date: Wednesday, November 10, 2010, 1:48 AM
> >
> >
> > @Inject is for pages. Make your DAO a Tapestry service and inject the
> > session to it via its constructor.
> >
> > Kalle
> >
> >
> > On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal
> wrote:
> >
> >> I have setup my Tapestry project using the Maven archetype. Then, I
> setup my hibernate.cfg.xml file with references to my hibernate mapping
> files. (I am not using annotations for hibernate.)
> >>
> >> Now, I have setup a simple DAO object to try to retrieve an object from
> the database:
> >>
> >> public class BranchDAO {
> >>
> >> @Inject
> >> private Session session;
> >>
> >> @SuppressWarnings("unchecked")
> >> public Object find( Class c , BigDecimal id)
> >> {
> >> return session.get(c, id); // session is NULL here
> >> }
> >> }
> >>
> >>
> >> I get a NULL pointer exception because my session does not seem to be
> >> initialized.
> >>
> >> Searching online, I came accross:
> >> http://wiki.apache.org/tapestry/SessionPagePersistence
> >>
> >> I have not setup any hivemind configuration or any of the suggested
> classes on that wiki page. Please advise me what do I need to be able to
> fetch objects using Tapestry-Hibernate. I don't know where to place the
> hivemind configuration file -- if I need it.
> >>
> >> I am new to Tapestry. Please bear with me.
> >>
> >> Thank you for your kind assistance.
> >> --Anas Mughal
> >> http://anas-mughal.com
> >>
> >>
> >>
> >>
> >>
> >>
> > -
> > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> > For additional commands, e-mail: users-h...@tapestry.apache.org
> >
> >
> >
> >
> >
> >
>
>
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>
>
>
>
>
>
Re: session is NULL
Yes, that worked. I wish to thank everyone for their help!
Tapestry is great!
Coming from the Spring world, I do not miss those verbose Spring configuration
files!
--Anas Mughal
http://anas-mughal.com
--- On Wed, 11/10/10, Rich M wrote:
From: Rich M
Subject: Re: session is NULL
To: "Tapestry users"
Date: Wednesday, November 10, 2010, 10:34 AM
On 11/10/2010 03:42 AM, Anas Mughal wrote:
> I have setup my DAO as a Tapestry service in the AppModule as:
> public class AppModule
> {
> public static void bind(ServiceBinder binder)
> {
> binder.bind(BranchDAO.class, BranchHibernateDAO.class);
>
> }
> }
> Then, I try to inject the session as follows:
> public class BranchHibernateDAO implements BranchDAO {
>
> �...@inject
> private Session session;
>
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id);
> }
>
> }
>
> I still get a NULL session.
>
>
>
>
>
>
>
> Following the suggestion by Kalle, I injected the session to a page. Then,
> passed the session to my DAO in the contructor. That worked! However, I would
> rather keep the code cleaner by injecting the session directly into the DAO.
>
To use the DAO, you will want the following setup.
public class BranchHibernateDAO implements BranchDAO {
private Session session;
public BranchHibernateDAO(Session session){
this.session = session;
}
...
}
then in your page class:
@Inject
private BranchHibernateDAO bhdao;
You do not need to initialize the BranchHibernateDAO yourself. Tapestry-IoC
will initialize the BranchHibernateDAO lazily behind the scenes the first time
you access it in the web application. In this case, that would be when you
navigate to the page relating to your page class, where the DAO is injected.
The convention for services, is that when they are setup in the bind method of
the AppModule (or whatever your module is called), Tapestry will "inject" the
appropriate objects to its constructor when it initializes the service.
This convention will keep your page classes cleaner.
> Any suggestion would be greatly appreciated.
> --- On Wed, 11/10/10, Kalle Korhonen wrote:
>
>
> From: Kalle Korhonen
> Subject: Re: session is NULL
> To: "Tapestry users"
> Date: Wednesday, November 10, 2010, 1:48 AM
>
>
> @Inject is for pages. Make your DAO a Tapestry service and inject the
> session to it via its constructor.
>
> Kalle
>
>
> On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal wrote:
>
>> I have setup my Tapestry project using the Maven archetype. Then, I setup my
>> hibernate.cfg.xml file with references to my hibernate mapping files. (I am
>> not using annotations for hibernate.)
>>
>> Now, I have setup a simple DAO object to try to retrieve an object from the
>> database:
>>
>> public class BranchDAO {
>>
>> @Inject
>> private Session session;
>>
>> @SuppressWarnings("unchecked")
>> public Object find( Class c , BigDecimal id)
>> {
>> return session.get(c, id); // session is NULL here
>> }
>> }
>>
>>
>> I get a NULL pointer exception because my session does not seem to be
>> initialized.
>>
>> Searching online, I came accross:
>> http://wiki.apache.org/tapestry/SessionPagePersistence
>>
>> I have not setup any hivemind configuration or any of the suggested classes
>> on that wiki page. Please advise me what do I need to be able to fetch
>> objects using Tapestry-Hibernate. I don't know where to place the hivemind
>> configuration file -- if I need it.
>>
>> I am new to Tapestry. Please bear with me.
>>
>> Thank you for your kind assistance.
>> --Anas Mughal
>> http://anas-mughal.com
>>
>>
>>
>>
>>
>>
> -
> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
> For additional commands, e-mail: users-h...@tapestry.apache.org
>
>
>
>
>
>
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Re: session is NULL
On 11/10/2010 03:42 AM, Anas Mughal wrote:
I have setup my DAO as a Tapestry service in the AppModule as:
public class AppModule
{
public static void bind(ServiceBinder binder)
{
binder.bind(BranchDAO.class, BranchHibernateDAO.class);
}
}
Then, I try to inject the session as follows:
public class BranchHibernateDAO implements BranchDAO {
@Inject
private Session session;
@SuppressWarnings("unchecked")
public Object find( Class c , BigDecimal id)
{
return session.get(c, id);
}
}
I still get a NULL session.
Following the suggestion by Kalle, I injected the session to a page. Then,
passed the session to my DAO in the contructor. That worked! However, I would
rather keep the code cleaner by injecting the session directly into the DAO.
To use the DAO, you will want the following setup.
public class BranchHibernateDAO implements BranchDAO {
private Session session;
public BranchHibernateDAO(Session session){
this.session = session;
}
...
}
then in your page class:
@Inject
private BranchHibernateDAO bhdao;
You do not need to initialize the BranchHibernateDAO yourself.
Tapestry-IoC will initialize the BranchHibernateDAO lazily behind the
scenes the first time you access it in the web application. In this
case, that would be when you navigate to the page relating to your page
class, where the DAO is injected.
The convention for services, is that when they are setup in the bind
method of the AppModule (or whatever your module is called), Tapestry
will "inject" the appropriate objects to its constructor when it
initializes the service.
This convention will keep your page classes cleaner.
Any suggestion would be greatly appreciated.
--- On Wed, 11/10/10, Kalle Korhonen wrote:
From: Kalle Korhonen
Subject: Re: session is NULL
To: "Tapestry users"
Date: Wednesday, November 10, 2010, 1:48 AM
@Inject is for pages. Make your DAO a Tapestry service and inject the
session to it via its constructor.
Kalle
On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal wrote:
I have setup my Tapestry project using the Maven archetype. Then, I setup my
hibernate.cfg.xml file with references to my hibernate mapping files. (I am not
using annotations for hibernate.)
Now, I have setup a simple DAO object to try to retrieve an object from the
database:
public class BranchDAO {
@Inject
private Session session;
@SuppressWarnings("unchecked")
public Object find( Class c , BigDecimal id)
{
return session.get(c, id); // session is NULL here
}
}
I get a NULL pointer exception because my session does not seem to be
initialized.
Searching online, I came accross:
http://wiki.apache.org/tapestry/SessionPagePersistence
I have not setup any hivemind configuration or any of the suggested classes on
that wiki page. Please advise me what do I need to be able to fetch objects
using Tapestry-Hibernate. I don't know where to place the hivemind
configuration file -- if I need it.
I am new to Tapestry. Please bear with me.
Thank you for your kind assistance.
--Anas Mughal
http://anas-mughal.com
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Re: session is NULL
On Wed, Nov 10, 2010 at 9:42 AM, Anas Mughal wrote:
>
> I have setup my DAO as a Tapestry service in the AppModule as:
>
>
[...]
Then, I try to inject the session as follows:
>
> public class BranchHibernateDAO implements BranchDAO {
>
> @Inject
> private Session session;
>
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
>return session.get(c, id);
> }
>
> }
>
>
> I still get a NULL session.
>
>
> Following the suggestion by Kalle, I injected the session to a page. Then,
> passed the session to my DAO in the contructor. That worked! However, I
> would rather keep the code cleaner by injecting the session directly into
> the DAO.
>
> Any suggestion would be greatly appreciated.
>
How do you access an instance of BranchHibernateDAO?
I suspect that you might create it using 'new'. That is not correct. Use
Tapestry injections instead, e.g. in your page or component:
@Inject
private BranchDAO dao;
Regards,
Cezary
Re: session is NULL
Kindly visit my post. http://tapestry.1045711.n5.nabble.com/T5-Working-Tapestry-Hibernate-with-DAO-td3229905.html#a3229905 http://tapestry.1045711.n5.nabble.com/T5-Working-Tapestry-Hibernate-with-DAO-td3229905.html#a3229905 -- View this message in context: http://tapestry.1045711.n5.nabble.com/session-is-NULL-tp3258165p3258344.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: session is NULL
I have setup my DAO as a Tapestry service in the AppModule as:
public class AppModule
{
public static void bind(ServiceBinder binder)
{
binder.bind(BranchDAO.class, BranchHibernateDAO.class);
}
}
Then, I try to inject the session as follows:
public class BranchHibernateDAO implements BranchDAO {
@Inject
private Session session;
�...@suppresswarnings("unchecked")
public Object find( Class c , BigDecimal id)
{
return session.get(c, id);
}
}
I still get a NULL session.
Following the suggestion by Kalle, I injected the session to a page. Then,
passed the session to my DAO in the contructor. That worked! However, I would
rather keep the code cleaner by injecting the session directly into the DAO.
Any suggestion would be greatly appreciated.
--- On Wed, 11/10/10, Kalle Korhonen wrote:
From: Kalle Korhonen
Subject: Re: session is NULL
To: "Tapestry users"
Date: Wednesday, November 10, 2010, 1:48 AM
@Inject is for pages. Make your DAO a Tapestry service and inject the
session to it via its constructor.
Kalle
On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal wrote:
> I have setup my Tapestry project using the Maven archetype. Then, I setup my
> hibernate.cfg.xml file with references to my hibernate mapping files. (I am
> not using annotations for hibernate.)
>
> Now, I have setup a simple DAO object to try to retrieve an object from the
> database:
>
> public class BranchDAO {
>
> @Inject
> private Session session;
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id); // session is NULL here
> }
> }
>
>
> I get a NULL pointer exception because my session does not seem to be
> initialized.
>
> Searching online, I came accross:
> http://wiki.apache.org/tapestry/SessionPagePersistence
>
> I have not setup any hivemind configuration or any of the suggested classes
> on that wiki page. Please advise me what do I need to be able to fetch
> objects using Tapestry-Hibernate. I don't know where to place the hivemind
> configuration file -- if I need it.
>
> I am new to Tapestry. Please bear with me.
>
> Thank you for your kind assistance.
> --Anas Mughal
> http://anas-mughal.com
>
>
>
>
>
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To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org
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Re: session is NULL
@Inject is for pages. Make your DAO a Tapestry service and inject the
session to it via its constructor.
Kalle
On Tue, Nov 9, 2010 at 9:52 PM, Anas Mughal wrote:
> I have setup my Tapestry project using the Maven archetype. Then, I setup my
> hibernate.cfg.xml file with references to my hibernate mapping files. (I am
> not using annotations for hibernate.)
>
> Now, I have setup a simple DAO object to try to retrieve an object from the
> database:
>
> public class BranchDAO {
>
> @Inject
> private Session session;
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id); // session is NULL here
> }
> }
>
>
> I get a NULL pointer exception because my session does not seem to be
> initialized.
>
> Searching online, I came accross:
> http://wiki.apache.org/tapestry/SessionPagePersistence
>
> I have not setup any hivemind configuration or any of the suggested classes
> on that wiki page. Please advise me what do I need to be able to fetch
> objects using Tapestry-Hibernate. I don't know where to place the hivemind
> configuration file -- if I need it.
>
> I am new to Tapestry. Please bear with me.
>
> Thank you for your kind assistance.
> --Anas Mughal
> http://anas-mughal.com
>
>
>
>
>
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Re: session is NULL
Anas,
Your Dao must be a service managed by tapestry for it to benefit from the
injection of the rest of tapestry services. To ensure that ,
make sure you bind it in the application module. If you used the archetype
to generate the application, then there is module class in the services
directory. The class is well commented with an example on how to bind a
service
Something like bind(MyDaoInterface.class ,
MyDaoInterfaceImplementation.class);
regards.
On Wed, Nov 10, 2010 at 1:40 AM, Anas Mughal wrote:
> Yes, tapestry-hibernate dependency is added:
>
>
> org.apache.tapestry
> tapestry-hibernate
> 5.2.2
>
>
> And, it is being resolved and included successfully in the project.
>
> The hibernate configuration seems to be picked up properly as well. (There
> was a problem with the path to the mapping files. After fixing it, now there
> is no error with respect to the hibernate configuration.)
>
> I don't know how to resolve the session object being NULL in my simple DAO
> below.
>
>
>
>
>
>
>
> Thanks for your help!
> --
> Anas Mughal
>
> http://anas-mughal.com
>
>
>
>
>
>
> --- On Wed, 11/10/10, Josh Kamau wrote:
>
>
> From: Josh Kamau
> Subject: Re: session is NULL
> To: "Tapestry users"
> Date: Wednesday, November 10, 2010, 1:04 AM
>
>
> Hi Anas;
>
> Have you added the tapestry-hibernate dependency on your pom.xml?
>
> On Wed, Nov 10, 2010 at 12:52 AM, Anas Mughal
> wrote:
>
> > I have setup my Tapestry project using the Maven archetype. Then, I setup
> > my hibernate.cfg.xml file with references to my hibernate mapping files.
> (I
> > am not using annotations for hibernate.)
> >
> > Now, I have setup a simple DAO object to try to retrieve an object from
> the
> > database:
> >
> > public class BranchDAO {
> >
> > @Inject
> > private Session session;
> >
> > @SuppressWarnings("unchecked")
> > public Object find( Class c , BigDecimal id)
> > {
> > return session.get(c, id); // session is NULL here
> > }
> > }
> >
> >
> > I get a NULL pointer exception because my session does not seem to be
> > initialized.
> >
> > Searching online, I came accross:
> > http://wiki.apache.org/tapestry/SessionPagePersistence
> >
> > I have not setup any hivemind configuration or any of the suggested
> classes
> > on that wiki page. Please advise me what do I need to be able to fetch
> > objects using Tapestry-Hibernate. I don't know where to place the
> hivemind
> > configuration file -- if I need it.
> >
> > I am new to Tapestry. Please bear with me.
> >
> > Thank you for your kind assistance.
> > --Anas Mughal
> > http://anas-mughal.com
> >
> >
> >
> >
> >
>
>
>
>
>
Re: session is NULL
Yes, tapestry-hibernate dependency is added:
org.apache.tapestry
tapestry-hibernate
5.2.2
And, it is being resolved and included successfully in the project.
The hibernate configuration seems to be picked up properly as well. (There was
a problem with the path to the mapping files. After fixing it, now there is no
error with respect to the hibernate configuration.)
I don't know how to resolve the session object being NULL in my simple DAO
below.
Thanks for your help!
--
Anas Mughal
http://anas-mughal.com
--- On Wed, 11/10/10, Josh Kamau wrote:
From: Josh Kamau
Subject: Re: session is NULL
To: "Tapestry users"
Date: Wednesday, November 10, 2010, 1:04 AM
Hi Anas;
Have you added the tapestry-hibernate dependency on your pom.xml?
On Wed, Nov 10, 2010 at 12:52 AM, Anas Mughal wrote:
> I have setup my Tapestry project using the Maven archetype. Then, I setup
> my hibernate.cfg.xml file with references to my hibernate mapping files. (I
> am not using annotations for hibernate.)
>
> Now, I have setup a simple DAO object to try to retrieve an object from the
> database:
>
> public class BranchDAO {
>
> �...@inject
> private Session session;
>
> �...@suppresswarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id); // session is NULL here
> }
> }
>
>
> I get a NULL pointer exception because my session does not seem to be
> initialized.
>
> Searching online, I came accross:
> http://wiki.apache.org/tapestry/SessionPagePersistence
>
> I have not setup any hivemind configuration or any of the suggested classes
> on that wiki page. Please advise me what do I need to be able to fetch
> objects using Tapestry-Hibernate. I don't know where to place the hivemind
> configuration file -- if I need it.
>
> I am new to Tapestry. Please bear with me.
>
> Thank you for your kind assistance.
> --Anas Mughal
> http://anas-mughal.com
>
>
>
>
>
Re: session is NULL
Hi Anas;
Have you added the tapestry-hibernate dependency on your pom.xml?
On Wed, Nov 10, 2010 at 12:52 AM, Anas Mughal wrote:
> I have setup my Tapestry project using the Maven archetype. Then, I setup
> my hibernate.cfg.xml file with references to my hibernate mapping files. (I
> am not using annotations for hibernate.)
>
> Now, I have setup a simple DAO object to try to retrieve an object from the
> database:
>
> public class BranchDAO {
>
> @Inject
> private Session session;
>
> @SuppressWarnings("unchecked")
> public Object find( Class c , BigDecimal id)
> {
> return session.get(c, id); // session is NULL here
> }
> }
>
>
> I get a NULL pointer exception because my session does not seem to be
> initialized.
>
> Searching online, I came accross:
> http://wiki.apache.org/tapestry/SessionPagePersistence
>
> I have not setup any hivemind configuration or any of the suggested classes
> on that wiki page. Please advise me what do I need to be able to fetch
> objects using Tapestry-Hibernate. I don't know where to place the hivemind
> configuration file -- if I need it.
>
> I am new to Tapestry. Please bear with me.
>
> Thank you for your kind assistance.
> --Anas Mughal
> http://anas-mughal.com
>
>
>
>
>
session is NULL
I have setup my Tapestry project using the Maven archetype. Then, I setup my
hibernate.cfg.xml file with references to my hibernate mapping files. (I am not
using annotations for hibernate.)
Now, I have setup a simple DAO object to try to retrieve an object from the
database:
public class BranchDAO {
@Inject
private Session session;
@SuppressWarnings("unchecked")
public Object find( Class c , BigDecimal id)
{
return session.get(c, id); // session is NULL here
}
}
I get a NULL pointer exception because my session does not seem to be
initialized.
Searching online, I came accross:
http://wiki.apache.org/tapestry/SessionPagePersistence
I have not setup any hivemind configuration or any of the suggested classes on
that wiki page. Please advise me what do I need to be able to fetch objects
using Tapestry-Hibernate. I don't know where to place the hivemind
configuration file -- if I need it.
I am new to Tapestry. Please bear with me.
Thank you for your kind assistance.
--Anas Mughal
http://anas-mughal.com
Re: [T5]: Hibernate question - session is null
Yep, Injection works only in page and component classes that live the
ordinary Page or component lifecycle, and are requested from the web. :)
Move the session to a real page and have that util to take the session as
parameter, or even better move your logic to service that a page can use.
(SecurityService perhaps?)
- 99
Sven Homburg wrote:
>
> its look like, that your Security class is only a helper class
> and no page component.
>
> in such classes the @Inject annotation doesnt work
>
> 2008/7/28 <[EMAIL PROTECTED]>
>
>> Ok, I have just checked. I have mysql-connector-java-5.1.5.jar in the
>> maven
>> repository.
>>
>>
>> Code is:
>> -
>> package uk.bl.dlportal.pages.util;
>>
>> import java.util.List;
>>
>> import org.apache.tapestry5.ioc.annotations.Inject;
>> import org.hibernate.Criteria;
>> import org.hibernate.Query;
>> import org.hibernate.Session;
>>
>>
>> import uk.bl.dlportal.entities.User;
>>
>>
>> public class Security
>> {
>>@Inject
>>private Session session;
>>
>>private final static Security security = new Security();
>>
>>
>>public User authenticate(String userName, String password)
>>{
>>System.out.println("SESSION
>> "+session);
>>
>>Criteria c = session.createCriteria(User.class);
>>
>>List result = c.list();
>>
>>System.out.println("SESSION
>> "+session);
>>
>>return null;
>>}
>>
>>public static Security getSecurity()
>>{
>>return security;
>>}
>> }
>>
>>
>> Stack trace is:
>>
>> 84.73% unrealized services (111/131)
>>
>> [INFO] mortbay.log Started [EMAIL PROTECTED]:8080
>> [DEBUG] AppModule.TimingFilter Creating service 'TimingFilter'.
>> [DEBUG] AppModule.TimingFilter Invoking method
>> uk.bl.dlportal.services.AppModule.buildTimingFilter(Logger) (at
>> AppModule.java:71).
>> [INFO] AppModule.TimingFilter Request time: 4846 ms
>> [INFO] AppModule.TimingFilter Request time: 0 ms
>> [INFO] AppModule.TimingFilter Request time: 16 ms
>> SESSION null
>> [INFO] AppModule.TimingFilter Request time: 251 ms
>> [ERROR] TapestryModule.RequestExceptionHandler Processing of request
>> failed
>> with uncaught
>> exception: org.apache.tapestry5.runtime.ComponentEventException
>> org.apache.tapestry5.runtime.ComponentEventException [at
>> context:Index.tml,
>> line 7,
>> column 28]
>>at
>>
>> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1042)
>>at
>>
>> org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:67)
>>at
>>
>> org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
>>at
>>
>> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>>at
>> org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
>>at
>>
>> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>>at
>> org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:1987)
>>at
>>
>> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>>at
>>
>> $ComponentEventRequestHandler_11b68bd500b.handle($ComponentEventRequestHandler_11b68bd500b.java)
>>at
>>
>> org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:135)
>>at $Dispatcher_11b68bd500e.dispatch($Dispatcher_11b68bd500e.java)
>>at $Dispatcher_11b68bd5000.dispatch($Dispatcher_11b68bd5000.java)
>>at
>> org.apache.tapestry5.services.TapestryModule$12.service(TapestryModule.java:938)
>>at uk.bl.dlportal.services.AppModule$1.service(AppModule.java:84)
>>at
>> $RequestFilter_11b68bd4fff.service($RequestFilter_11b68bd4fff.java)
>>at
>> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>>at
>>
>> org.apache.tapestry5.internal.services.LocalizationFilter.service(LocalizationFilter.java:42)
>>at
>> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>>at
>> org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:586)
>>at
>> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>>at
>>
>> org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
>>at
>> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>>at
>>
>> org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
>>at
>> $RequestHandler_11b68bd5001.service($
Re: [T5]: Hibernate question - session is null
its look like, that your Security class is only a helper class
and no page component.
in such classes the @Inject annotation doesnt work
2008/7/28 <[EMAIL PROTECTED]>
> Ok, I have just checked. I have mysql-connector-java-5.1.5.jar in the maven
> repository.
>
>
> Code is:
> -
> package uk.bl.dlportal.pages.util;
>
> import java.util.List;
>
> import org.apache.tapestry5.ioc.annotations.Inject;
> import org.hibernate.Criteria;
> import org.hibernate.Query;
> import org.hibernate.Session;
>
>
> import uk.bl.dlportal.entities.User;
>
>
> public class Security
> {
>@Inject
>private Session session;
>
>private final static Security security = new Security();
>
>
>public User authenticate(String userName, String password)
>{
>System.out.println("SESSION
> "+session);
>
>Criteria c = session.createCriteria(User.class);
>
>List result = c.list();
>
>System.out.println("SESSION
> "+session);
>
>return null;
>}
>
>public static Security getSecurity()
>{
>return security;
>}
> }
>
>
> Stack trace is:
>
> 84.73% unrealized services (111/131)
>
> [INFO] mortbay.log Started [EMAIL PROTECTED]:8080
> [DEBUG] AppModule.TimingFilter Creating service 'TimingFilter'.
> [DEBUG] AppModule.TimingFilter Invoking method
> uk.bl.dlportal.services.AppModule.buildTimingFilter(Logger) (at
> AppModule.java:71).
> [INFO] AppModule.TimingFilter Request time: 4846 ms
> [INFO] AppModule.TimingFilter Request time: 0 ms
> [INFO] AppModule.TimingFilter Request time: 16 ms
> SESSION null
> [INFO] AppModule.TimingFilter Request time: 251 ms
> [ERROR] TapestryModule.RequestExceptionHandler Processing of request failed
> with uncaught
> exception: org.apache.tapestry5.runtime.ComponentEventException
> org.apache.tapestry5.runtime.ComponentEventException [at context:Index.tml,
> line 7,
> column 28]
>at
>
> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1042)
>at
>
> org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:67)
>at
>
> org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
>at
>
> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>at
> org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
>at
>
> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>at
> org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:1987)
>at
>
> $ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
>at
>
> $ComponentEventRequestHandler_11b68bd500b.handle($ComponentEventRequestHandler_11b68bd500b.java)
>at
>
> org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:135)
>at $Dispatcher_11b68bd500e.dispatch($Dispatcher_11b68bd500e.java)
>at $Dispatcher_11b68bd5000.dispatch($Dispatcher_11b68bd5000.java)
>at
> org.apache.tapestry5.services.TapestryModule$12.service(TapestryModule.java:938)
>at uk.bl.dlportal.services.AppModule$1.service(AppModule.java:84)
>at
> $RequestFilter_11b68bd4fff.service($RequestFilter_11b68bd4fff.java)
>at
> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>at
>
> org.apache.tapestry5.internal.services.LocalizationFilter.service(LocalizationFilter.java:42)
>at
> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>at
> org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:586)
>at
> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>at
>
> org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
>at
> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>at
>
> org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
>at
> $RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
>at
>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:93)
>at
>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:84)
>at
>
> org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:75)
>at
>
> org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)
>
Re: [T5]: Hibernate question - session is null
Ok, I have just checked. I have mysql-connector-java-5.1.5.jar in the
maven repository.
Code is:
-
package uk.bl.dlportal.pages.util;
import java.util.List;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.hibernate.Criteria;
import org.hibernate.Query;
import org.hibernate.Session;
import uk.bl.dlportal.entities.User;
public class Security
{
@Inject
private Session session;
private final static Security security = new Security();
public User authenticate(String userName, String password)
{
System.out.println("SESSION
"+session);
Criteria c = session.createCriteria(User.class);
List result = c.list();
System.out.println("SESSION
"+session);
return null;
}
public static Security getSecurity()
{
return security;
}
}
Stack trace is:
84.73% unrealized services (111/131)
[INFO] mortbay.log Started [EMAIL PROTECTED]:8080
[DEBUG] AppModule.TimingFilter Creating service 'TimingFilter'.
[DEBUG] AppModule.TimingFilter Invoking method
uk.bl.dlportal.services.AppModule.buildTimingFilter(Logger) (at
AppModule.java:71).
[INFO] AppModule.TimingFilter Request time: 4846 ms
[INFO] AppModule.TimingFilter Request time: 0 ms
[INFO] AppModule.TimingFilter Request time: 16 ms
SESSION null
[INFO] AppModule.TimingFilter Request time: 251 ms
[ERROR] TapestryModule.RequestExceptionHandler Processing of request
failed with uncaught
exception: org.apache.tapestry5.runtime.ComponentEventException
org.apache.tapestry5.runtime.ComponentEventException [at
context:Index.tml, line 7,
column 28]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1042)
at
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:67)
at
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
at
$ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
at
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
at
$ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
at
org.apache.tapestry5.services.TapestryModule$37.handle(TapestryModule.java:1987)
at
$ComponentEventRequestHandler_11b68bd5062.handle($ComponentEventRequestHandler_11b68bd5062.java)
at
$ComponentEventRequestHandler_11b68bd500b.handle($ComponentEventRequestHandler_11b68bd500b.java)
at
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:135)
at $Dispatcher_11b68bd500e.dispatch($Dispatcher_11b68bd500e.java)
at $Dispatcher_11b68bd5000.dispatch($Dispatcher_11b68bd5000.java)
at
org.apache.tapestry5.services.TapestryModule$12.service(TapestryModule.java:938)
at uk.bl.dlportal.services.AppModule$1.service(AppModule.java:84)
at $RequestFilter_11b68bd4fff.service($RequestFilter_11b68bd4fff.java)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
org.apache.tapestry5.internal.services.LocalizationFilter.service(LocalizationFilter.java:42)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:586)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:93)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:84)
at
org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:75)
at
org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)
at
$RequestHandler_11b68bd5001.service($RequestHandler_11b68bd5001.java)
at
$RequestHandler_11b68bd4ff8.service($RequestHandler_11b68bd4ff8.java)
at
org.apache.tapestry5.services.TapestryModule$11.service(TapestryModule.java:918)
at
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredP
Re: [T5]: Hibernate question - session is null
Check also that you have the mysql-connector-java-5.1.6.jar or similar in your libraries. I have the following list: FieldValidatorSource: DEFINED FormDAO: DEFINED FormSupport: DEFINED FreeMarkerService: DEFINED FulfillmentDAO: DEFINED GoogleMapService: DEFINED HibernateEntityPackageManager: DEFINED HibernateSessionManager: DEFINED HibernateSessionSource: DEFINED HibernateTransactionDecorator: DEFINED HiddenFieldLocationRules: DEFINED HiveMind: DEFINED HttpServletRequest: DEFINED HttpServletRequestHandler: VIRTUAL IgnoredPathsFilter: DEFINED So that one should be ok. Is the page that you are testing with _really_ calling session.something? Tapestry lazy loads everything so Hibernate is not really initialized without the call. Can we have the stack trace? - 99 photos-4 wrote: > > Quoting 9902468 <[EMAIL PROTECTED]>: > >> >> Is the hibernate service initialized at all? When Tapestry starts it >> lists >> all known services, is Hibernate in that list? >> >> - 99 > > > It looks like it: > > ... > FieldValidationSupport: DEFINED >FieldValidatorDefaultSource: DEFINED > FieldValidatorSource: DEFINED >FormSupport: DEFINED > HibernateEntityPackageManager: DEFINED >HibernateSessionManager: DEFINED > HibernateSessionSource: DEFINED > HibernateTransactionDecorator: DEFINED > HiddenFieldLocationRules: DEFINED > HttpServletRequest: DEFINED > HttpServletRequestHandler: VIRTUAL > IgnoredPathsFilter: DEFINED > InjectionProvider: DEFINED > InternalRequestGlobals: VIRTUAL >LinkFactory: DEFINED > ... > > > I still haven't figured out what is going on. I see no evidence of > Hibernate ever being called. Are any Hibernate services missing from > the above list? > > p. > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/-T5-%3A-Hibernate-question-tp18634071p18685754.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
Quoting 9902468 <[EMAIL PROTECTED]>: Is the hibernate service initialized at all? When Tapestry starts it lists all known services, is Hibernate in that list? - 99 It looks like it: ... FieldValidationSupport: DEFINED FieldValidatorDefaultSource: DEFINED FieldValidatorSource: DEFINED FormSupport: DEFINED HibernateEntityPackageManager: DEFINED HibernateSessionManager: DEFINED HibernateSessionSource: DEFINED HibernateTransactionDecorator: DEFINED HiddenFieldLocationRules: DEFINED HttpServletRequest: DEFINED HttpServletRequestHandler: VIRTUAL IgnoredPathsFilter: DEFINED InjectionProvider: DEFINED InternalRequestGlobals: VIRTUAL LinkFactory: DEFINED ... I still haven't figured out what is going on. I see no evidence of Hibernate ever being called. Are any Hibernate services missing from the above list? p. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
Is the hibernate service initialized at all? When Tapestry starts it lists
all known services, is Hibernate in that list?
- 99
photos-4 wrote:
>
> Thanks for your help, but so far no joy:
>
> Quoting 9902468 <[EMAIL PROTECTED]>:
>
>> And of course, check that you have Hibernate and hibernate
>> annotation in your >libraries, they are NOT included automatically
>> by maven if maven is used.
>
> The libraries appear in my repository and appear under "sources" in
> the Eclipse Run Configuration.
>
>
>>
>> Tapestry should be quite verbose about hibernate if tapestry is
>> configured to
>> run in debug mode:
>>
>> http://tapestry.apache.org/tapestry5/tapestry-core/guide/conf.html
>>
>> add:
>>
>
> I placed -Dtapestry.production-mode=false on the command line, which,
> according to the docs, does the same thing.
>
> I see no output about Hibernate at all. It never gets mentioned...
>
>
>> Also see that your entities are in correct place (same root package as
>> pages
>> and components, in entities package.)
>
> src/main/java/uk.bl.dlportal.entities
> src/main/java/uk.bl.dlportal.components
> src/main/java/uk.bl.dlportal.pages
>
> looks ok to me.
>
>
>> Also perhaps use org.hibernate.dialect.MySQLInnoDBDialect to support
>> foreign
>> keys? (Change to hibernate config.)
>>
>> You should be able to see that Hibernate starts in the logs and maps User
>> etc. classes.
>>
>> Remember to configure your Log4J or what ever logging u use to debug.
>
> I added some lines to log4j.properties to turn on hibernate logging
> ("debug"), but I see no output - just the usual Tapestry debug output
> that I've seen before.
>
> I'm really stumped... :-( Hibernate never gets called and yet
> everything appears to be in place.
>
> p.
>
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>
--
View this message in context:
http://www.nabble.com/-T5-%3A-Hibernate-question-tp18634071p18684648.html
Sent from the Tapestry - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
Hi,
I also had some trouble configuring hibernate, my session was also null.
After searching for a while I found this tutorial:
http://linuxboy.javaeye.com/blog/68311
Since I dont use a DAO, my code looks something like the following.
my db entity:
...
import org.hibernate.Session;
@Entity
@Table(name = "EVENT")
public class EventDBEntity {
public EventDBEntity() {}
public EventDBEntity(Session session) {_session = session;}
@Transient
private Session _session;
// more stuff here.. methods to access the db
...
in my appmodule.java:
...
public static void bind(ServiceBinder binder)
{
binder.bind(TourDBEntity.class);
}
...
then I call an @Inject on the db-entity:
...
// db entity object
@Inject
private EventDBEntity _dbEntity;
// now tapestry injects the hibernate session in my _dbEntity
...
Hope this helps!
Greetings, Mark
--
Mark Weißenberg
Tel. +49 228 9599630
startext Unternehmensberatung GmbH
Kennedyallee 2, D-53175 Bonn
Geschäftsführer Paul Bantzer, HRB Bonn 2741
Sitz der Gesellschaft: Bonn
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
Thanks for your help, but so far no joy:
Quoting 9902468 <[EMAIL PROTECTED]>:
And of course, check that you have Hibernate and hibernate
annotation in your >libraries, they are NOT included automatically
by maven if maven is used.
The libraries appear in my repository and appear under "sources" in
the Eclipse Run Configuration.
Tapestry should be quite verbose about hibernate if tapestry is configured to
run in debug mode:
http://tapestry.apache.org/tapestry5/tapestry-core/guide/conf.html
add:
I placed -Dtapestry.production-mode=false on the command line, which,
according to the docs, does the same thing.
I see no output about Hibernate at all. It never gets mentioned...
Also see that your entities are in correct place (same root package as pages
and components, in entities package.)
src/main/java/uk.bl.dlportal.entities
src/main/java/uk.bl.dlportal.components
src/main/java/uk.bl.dlportal.pages
looks ok to me.
Also perhaps use org.hibernate.dialect.MySQLInnoDBDialect to support foreign
keys? (Change to hibernate config.)
You should be able to see that Hibernate starts in the logs and maps User
etc. classes.
Remember to configure your Log4J or what ever logging u use to debug.
I added some lines to log4j.properties to turn on hibernate logging
("debug"), but I see no output - just the usual Tapestry debug output
that I've seen before.
I'm really stumped... :-( Hibernate never gets called and yet
everything appears to be in place.
p.
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Re: [T5]: Hibernate question - session is null
Quoting 9902468 <[EMAIL PROTECTED]>:
Check that the
@Inject
private Session session;
session is org.hibernate.Session.
- 99
It is. I notice that when I switch on the mysql log that no attempt
is ever made to
access the db. Is there any kind of logging I can switch on from
Tapestry (or maybe
Hibernate) to tell me what is going on? (I am quite sure the xml file
is correct and in
the classpath, so I am running out of ideas! Although it must be
something simple as
these things usually are). session is always null when this code is run.
Code and XML below:
package uk.bl.dlportal.pages.util;
import java.util.List;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.hibernate.Query;
import org.hibernate.Session;
import uk.bl.dlportal.entities.User;
public class Security
{
@Inject
private Session session;
private final static Security security = new Security();
public User authenticate(String userName, String password)
{
System.out.println("SESSION
"+session);
List result = session.createCriteria(User.class).list();
return null;
}
public static Security getSecurity()
{
return security;
}
}
XML hibernate.cfg.xml is in src/main/resources:
http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd";>
com.mysql.jdbc.Driver
jdbc:mysql://localhost:3306/dlportal
name="hibernate.dialect">org.hibernate.dialect.MySQLDialect
root
admin
update
true
true
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Re: [T5]: Hibernate question - session is null
And of course, check that you have Hibernate and hibernate annotation in your libraries, they are NOT included automatically by maven if maven is used. - 99 photos-4 wrote: > > > I'm using Eclipse. The XML config appears in target/classes and > appears to be in the classpath. > > I'm afraid I'm rather new to Tap 5 and also to Hibernate. I'm just > following what is in the Tutorial. Unfortunately the session is still > coming out as null. > > Is there anywhere I can see that Tapestry is actually using Hibernate > as a service? I get the following in the console when I start my > application: > > ... > HibernateEntityPackageManager: DEFINED >HibernateSessionManager: DEFINED > HibernateSessionSource: DEFINED > HibernateTransactionDecorator: DEFINED > ... > > > > Quoting Andreas Andreou <[EMAIL PROTECTED]>: > >> Perhaps hibernate.cfg.xml isn't in your runtime classpath? >> Are you sure your IDE includes it to the output? >> >> On Thu, Jul 24, 2008 at 6:09 PM, <[EMAIL PROTECTED]> wrote: >>> I am following the tutorial at >>> >>> http://tapestry.apache.org/tapestry5/tutorial1/forms2.html >>> >>> but I find that the session (supposedly injected) is null. I'm not sure >>> how >>> to proceed. >>> >>> Could someone point me to documents/better tutorials on how to use >>> Tapestry >>> with Hibernate? >>> >>> Thanks, >>> p. >>> >>> >>> >>> >>> - >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> >>> >> >> >> >> -- >> Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr >> Tapestry / Tacos developer >> Open Source / JEE Consulting >> >> - >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/-T5-%3A-Hibernate-question-tp18634071p18651522.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
Tapestry should be quite verbose about hibernate if tapestry is configured to
run in debug mode:
http://tapestry.apache.org/tapestry5/tapestry-core/guide/conf.html
add:
//This is the time in seconds that Tapestry waits before checking if a file
is modified
//Use a big number in production to imporve perfomance.
configuration.add(SymbolConstants.FILE_CHECK_INTERVAL, "1 s"); //
600 to production!
// The factory default is true but during the early stages of an
application
// overriding to false is a good idea. In addition, this is often
overridden
// on the command line as -Dtapestry.production-mode=false
configuration.add(SymbolConstants.PRODUCTION_MODE, "false");
to your AppModule.java's public static void
contributeApplicationDefaults(MappedConfiguration
configuration) { method.
Also see that your entities are in correct place (same root package as pages
and components, in entities package.)
Also perhaps use org.hibernate.dialect.MySQLInnoDBDialect to support foreign
keys? (Change to hibernate config.)
You should be able to see that Hibernate starts in the logs and maps User
etc. classes.
Remember to configure your Log4J or what ever logging u use to debug.
- 99
photos-4 wrote:
>
>
> I'm using Eclipse. The XML config appears in target/classes and
> appears to be in the classpath.
>
> I'm afraid I'm rather new to Tap 5 and also to Hibernate. I'm just
> following what is in the Tutorial. Unfortunately the session is still
> coming out as null.
>
> Is there anywhere I can see that Tapestry is actually using Hibernate
> as a service? I get the following in the console when I start my
> application:
>
> ...
> HibernateEntityPackageManager: DEFINED
>HibernateSessionManager: DEFINED
> HibernateSessionSource: DEFINED
> HibernateTransactionDecorator: DEFINED
> ...
>
>
>
> Quoting Andreas Andreou <[EMAIL PROTECTED]>:
>
>> Perhaps hibernate.cfg.xml isn't in your runtime classpath?
>> Are you sure your IDE includes it to the output?
>>
>> On Thu, Jul 24, 2008 at 6:09 PM, <[EMAIL PROTECTED]> wrote:
>>> I am following the tutorial at
>>>
>>> http://tapestry.apache.org/tapestry5/tutorial1/forms2.html
>>>
>>> but I find that the session (supposedly injected) is null. I'm not sure
>>> how
>>> to proceed.
>>>
>>> Could someone point me to documents/better tutorials on how to use
>>> Tapestry
>>> with Hibernate?
>>>
>>> Thanks,
>>> p.
>>>
>>>
>>>
>>>
>>> -
>>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>>> For additional commands, e-mail: [EMAIL PROTECTED]
>>>
>>>
>>
>>
>>
>> --
>> Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr
>> Tapestry / Tacos developer
>> Open Source / JEE Consulting
>>
>> -
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>>
>
>
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
>
--
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Re: [T5]: Hibernate question - session is null
Check that the @Inject private Session session; session is org.hibernate.Session. - 99 photos-4 wrote: > > > I'm using Eclipse. The XML config appears in target/classes and > appears to be in the classpath. > > I'm afraid I'm rather new to Tap 5 and also to Hibernate. I'm just > following what is in the Tutorial. Unfortunately the session is still > coming out as null. > > Is there anywhere I can see that Tapestry is actually using Hibernate > as a service? I get the following in the console when I start my > application: > > ... > HibernateEntityPackageManager: DEFINED >HibernateSessionManager: DEFINED > HibernateSessionSource: DEFINED > HibernateTransactionDecorator: DEFINED > ... > > > > Quoting Andreas Andreou <[EMAIL PROTECTED]>: > >> Perhaps hibernate.cfg.xml isn't in your runtime classpath? >> Are you sure your IDE includes it to the output? >> >> On Thu, Jul 24, 2008 at 6:09 PM, <[EMAIL PROTECTED]> wrote: >>> I am following the tutorial at >>> >>> http://tapestry.apache.org/tapestry5/tutorial1/forms2.html >>> >>> but I find that the session (supposedly injected) is null. I'm not sure >>> how >>> to proceed. >>> >>> Could someone point me to documents/better tutorials on how to use >>> Tapestry >>> with Hibernate? >>> >>> Thanks, >>> p. >>> >>> >>> >>> >>> - >>> To unsubscribe, e-mail: [EMAIL PROTECTED] >>> For additional commands, e-mail: [EMAIL PROTECTED] >>> >>> >> >> >> >> -- >> Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr >> Tapestry / Tacos developer >> Open Source / JEE Consulting >> >> - >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/-T5-%3A-Hibernate-question-tp18634071p18650658.html Sent from the Tapestry - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [T5]: Hibernate question - session is null
I'm using Eclipse. The XML config appears in target/classes and appears to be in the classpath. I'm afraid I'm rather new to Tap 5 and also to Hibernate. I'm just following what is in the Tutorial. Unfortunately the session is still coming out as null. Is there anywhere I can see that Tapestry is actually using Hibernate as a service? I get the following in the console when I start my application: ... HibernateEntityPackageManager: DEFINED HibernateSessionManager: DEFINED HibernateSessionSource: DEFINED HibernateTransactionDecorator: DEFINED ... Quoting Andreas Andreou <[EMAIL PROTECTED]>: Perhaps hibernate.cfg.xml isn't in your runtime classpath? Are you sure your IDE includes it to the output? On Thu, Jul 24, 2008 at 6:09 PM, <[EMAIL PROTECTED]> wrote: I am following the tutorial at http://tapestry.apache.org/tapestry5/tutorial1/forms2.html but I find that the session (supposedly injected) is null. I'm not sure how to proceed. Could someone point me to documents/better tutorials on how to use Tapestry with Hibernate? Thanks, p. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Andreas Andreou - [EMAIL PROTECTED] - http://blog.andyhot.gr Tapestry / Tacos developer Open Source / JEE Consulting - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
