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ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1

 
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Don Quixote



Joined: 31 Dec 2010
Posts: 5
PostPosted: Tue Jan 04, 2011 1:55 am    Post subject: ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1 Reply with quote
Hello people. I've already posted this topic in the Java EE users forum, but since there are almost 200 views and none replies, i suppose i posted on the wrong forum, that's why i'm posting here... correct me if i'm wrong.

I'm new in this forum, and i was wondering if you could help me solve this urgent problem.

Getting to the point. I'm using NetBeans 6.9.1 with JSF 2.0, generating the CRUD from the DB.

I have 3 entities: Country, City and Street. What i want is that, in Create.xhtml for Street, it displays 2 SelectOneMenus, for Country and City, and one InputText for Street. So that, choosing a Country, via the NATIVE AJAX of JSF, the SelectOneMenu for City be fulfilled, without refreshing the entire page.

As the title refers, i've done something using NetBeans 6.9.1, and it gives and ELException.

I'll show you the code of Create.xhtml for entity Street, StreetController and CityFacade( which contains the method that returns all cities from a determined country ).


Create.xhtml

Code:

...
                    <h:selectOneMenu id="country" [color=red]value="#{streetController.idCountry"[/color] title="#{bundle.CreateStreetTitle_country}" required="true" requiredMessage="#{bundle.CreateStreetRequiredMessage_country}">   
                        <f:selectItems value="#{countryController.itemsAvailableSelectOne}"/>   
                        <f:ajax execute="@this" immediate="true" render="city"/>   
                    </h:selectOneMenu>   
 
                    <h:selectOneMenu id="city" value="#{streetController.selected.city}" title="#{bundle.CreateStreetTitle_city}" required="true" requiredMessage="#{bundle.CreateStreetRequiredMessage_city}">   
                        <f:selectItems value="#{streetController.citiesFromCountry}"/>   
                    </h:selectOneMenu>
...




The code in red is what generates the exception. I've done like this, but i'm not sure that this is right. If it doens't turn red, well, it's the code between [color=red]...[color]



StreetController


Code:

...
@EJB private session.StreetFacade ejbFacade;   
@EJB private session.CityFacade cityFacade;   
private int idCountry;   
 
public SelectItem[] getCitiesFromCountry()   
    {   
       List<City> list = cityFacade.allCitiesFromCountry( idCountry );   
 
       return JsfUtil.getSelectItems(list, true);   
    }   
 
    public void setIdCountry( int idCountry )   
    { this.idCountry = idCountry ; }   
 
    public int getIdCountry()   
    {   
        return idCountry;   
    } 
...




CityFacade

Code:

...
private EntityManager em;   
 
public List<City> allCitiesFromCountry( int idCountry )   
    {   
        Query q = em.createQuery( "select c from City c where c.id_country = :idCountry" );   
        q.setParameter( "idCountry", idConutry);   
 
        return q.getResultList();   
    }
...




I'll hopelly wait for an answer.

THANK YOU
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Petr Jiricka
Posted via mailing list.
PostPosted: Wed Jan 05, 2011 10:11 am    Post subject: Re: ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1 Reply with quote
Hi, can you share more details about the exception? You should be able to report it directly from the IDE, can you please do that (if you haven't yet)?


Also, several problems in this area were recently fixed in NetBeans 7 builds, can you please try the latest build from here?
http://deadlock.netbeans.org/hudson/job/nbms-and-javadoc/


Thanks,
Petr



On Jan 4, 2011, at 2:56 AM, Don Quixote wrote:
Quote:
Hello people. I've already posted this topic in the Java EE users forum, but since there are almost 200 views and none replies, i suppose i posted on the wrong forum, that's why i'm posting here... correct me if i'm wrong.

I'm new in this forum, and i was wondering if you could help me solve this urgent problem.

Getting to the point. I'm using NetBeans 6.9.1 with JSF 2.0, generating the CRUD from the DB.

I have 3 entities: Country, City and Street. What i want is that, in Create.xhtml for Street, it displays 2 SelectOneMenus, for Country and City, and one InputText for Street. So that, choosing a Country, via the NATIVE AJAX of JSF, the SelectOneMenu for City be fulfilled, without refreshing the entire page.

As the title refers, i've done something using NetBeans 6.9.1, and it gives and ELException.

I'll show you the code of Create.xhtml for entity Street, StreetController and CityFacade( which contains the method that returns all cities from a determined country ).


Create.xhtml


Code:

...
<h:selectOneMenu id="country" value="#{streetController.idCountry" title="#{bundle.CreateStreetTitle_country}" required="true" requiredMessage="#{bundle.CreateStreetRequiredMessage_country}">
<f:selectItems value="#{countryController.itemsAvailableSelectOne}"/>
<f:ajax execute="@this" immediate="true" render="city"/>
</h:selectOneMenu>

<h:selectOneMenu id="city" value="#{streetController.selected.city}" title="#{bundle.CreateStreetTitle_city}" required="true" requiredMessage="#{bundle.CreateStreetRequiredMessage_city}">
<f:selectItems value="#{streetController.citiesFromCountry}"/>
</h:selectOneMenu>
...






The code in red is what generates the exception. I've done like this, but i'm not sure that this is right. If it doens't turn red, well, it's the code between [color=red]...[color]



StreetController



Code:

...
@EJB private session.StreetFacade ejbFacade;
@EJB private session.CityFacade cityFacade;
private int idCountry;

public SelectItem[] getCitiesFromCountry()
{
List<City> list = cityFacade.allCitiesFromCountry( idCountry );

return JsfUtil.getSelectItems(list, true);
}

public void setIdCountry( int idCountry )
{ this.idCountry = idCountry ; }

public int getIdCountry()
{
return idCountry;
}
...






CityFacade


Code:

...
private EntityManager em;

public List<City> allCitiesFromCountry( int idCountry )
{
Query q = em.createQuery( "select c from City c where c.id_country = :idCountry" );
q.setParameter( "idCountry", idConutry);

return q.getResultList();
}
...






I'll hopelly wait for an answer.

THANK YOU





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Don Quixote



Joined: 31 Dec 2010
Posts: 5
PostPosted: Wed Mar 16, 2011 2:48 pm    Post subject: Reply with quote
I got the error. Thanks Petr.
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angie_hz



Joined: 12 May 2011
Posts: 3
PostPosted: Thu May 12, 2011 9:30 am    Post subject: Reply with quote
Help please.
I have a similar problem, but with 4 entities: pais, comunidad, provincia, ciudad.
I can read all values from the database tables associated to these entities, but I'm unable to pass the id_pais value to the corresponding method of comunidadController.java. This is the code of create.xhtml:
<h:selectOneMenu id="someSelect" value="#{hpaisController.idpais}" required="true">
País: <f:selectItems value="#{hpaisController.itemsAvailableSelectOne}"/>
<f:ajax execute="@this" render="comunidad"/>
</h:selectOneMenu>
<h:selectOneMenu id="comunidad" value="#{hcomunidadController.selected.id}" required="true" >
Comunidad <f:selectItems value="#{hpaisController.comunidadesFromPaises}"/>
</h:selectOneMenu>

The method "getComunidadesFromPaises()" is like your method "getCitiesFromCountry()" and the query where you have to select the idpais for the comunidades list is like your query in CityFacade.

I appreciate any help.
Thanks.
Angie.
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Manfred Riem
Posted via mailing list.
PostPosted: Thu May 12, 2011 11:42 pm    Post subject: Re: ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1 Reply with quote
What version of JSF are you running?

-----Original Message-----
From: angie_hz [mailto:address-removed]
Sent: Thursday, May 12, 2011 3:31 AM
To: address-removed
Subject: [nbajax] ELException creating 2 dependable selectOneMenus with
native AJAX of JSF in NetBeans 6.9.1

Help please.
I have a similar problem, but with 4 entities: pais, comunidad, provincia,
ciudad.
I can read all values from the database tables associated to these entities,
but I'm unable to pass the id_pais value to the corresponding method of
comunidadController.java. This is the code of create.xhtml:
<h:selectOneMenu id="someSelect" value="#{hpaisController.idpais}"
required="true">
País: <f:selectItems
value="#{hpaisController.itemsAvailableSelectOne}"/>
<f:ajax execute="@this" render="comunidad"/>
</h:selectOneMenu>
<h:selectOneMenu id="comunidad" value="#{hcomunidadController.selected.id}"
required="true" >
Comunidad <f:selectItems
value="#{hpaisController.comunidadesFromPaises}"/>
</h:selectOneMenu>

The method "getComunidadesFromPaises()" is like your method
"getCitiesFromCountry()" and the query where you have to select the idpais
for the comunidades list is like your query in CityFacade.

I appreciate any help.
Thanks.
Angie.







-----
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Petr Jiricka
Posted via mailing list.
PostPosted: Fri May 13, 2011 9:08 am    Post subject: Re: ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1 Reply with quote
Hi Angie,

as I already wrote to the previous user, have you tried how this works in NetBeans 7.0?

Petr

On May 12, 2011, at 11:30 AM, angie_hz wrote:

Quote:
Help please.
I have a similar problem, but with 4 entities: pais, comunidad, provincia, ciudad.
I can read all values from the database tables associated to these entities, but I'm unable to pass the id_pais value to the corresponding method of comunidadController.java. This is the code of create.xhtml:
<h:selectOneMenu id="someSelect" value="#{hpaisController.idpais}" required="true">
Pa
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angie_hz



Joined: 12 May 2011
Posts: 3
PostPosted: Fri May 13, 2011 10:59 am    Post subject: Reply with quote
Thanks Petr, I tried in NetBeans 7.0, but it doesn't work.
I got the same results.

Angie.

P.D. I'm using JSF 2.0
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angie_hz



Joined: 12 May 2011
Posts: 3
PostPosted: Fri May 13, 2011 11:38 am    Post subject: Re: ELException creating 2 dependable selectOneMenus with native AJAX of JSF in NetBeans 6.9.1 Reply with quote
dd
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