@Logger does not inject

[laksu]

Hi,
I have

 @Logger
 private Log logger;

but i must be overseeing something basic so that logger is always null when it comes to logging.
What could it be?
I use SJSAS and Seam 1.2.0 p1

[waynebagguley]

Are there any errors in the application server logs?

[laksu]

Nope, nothing noteworthy, no Exceptions.
If I remove log4j.xml I naturally get

log4j:WARN No appenders could be found for logger (org.hibernate.ejb.Version).
log4j:WARN Please initialize the log4j system properly.

[gavin.king]

Do you have this annotation in a Seam component, ie. a class with an @Name?

[kukeltje]

always null, or just in the constructor?

[gavin.king]

Good point, Seam does not do any kind of injection until the object is fully constructed.

However, if you declare a @Logger field static, it will be init'd even in the constructor ;-)

[laksu]

Not in the constructor. Here is my class:

package datassist.gop.action;

import datassist.gop.domain.Istek;
import java.util.ArrayList;
import java.util.List;
import javax.ejb.Remove;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import org.jboss.seam.annotations.Create;
import org.jboss.seam.annotations.Destroy;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.datamodel.DataModel;
import org.jboss.seam.log.Log;

@Stateful
@Name("istekler")
public class IsteklerAction implements IsteklerActionLocal {

 @PersistenceContext(type=PersistenceContextType.EXTENDED)
 private EntityManager em;

 public IsteklerAction() {
 }

 @Create
 public void init(){
 System.out.println("initing istekler. logger is "+((logger==null)?"null":"not null"));
// logger.debug("initing");
 refresh();
 }

 @DataModel
 private List<Istek> istekList=new ArrayList<Istek>();

 public void refresh(){
 System.out.println("refreshing istekler");
// logger.debug("refreshing");
 istekList=em.createQuery("from Istek i").getResultList();
 }

 public void logSomething(){
 System.out.println("Trying to log something dummy and the logger is "+((logger==null)?"null":"not null"));
// logger.debug("Logging something dummy");
 }

 @Logger
 private Log logger;

 @Remove @Destroy
 public void destroy(){}
}

[gavin.king]

And how do you create an instance of this class?

[laksu]

I have

<h:commandButton value="Log" action="#{istekler.logSomething}"/>

in my .xhtml file and click the button to invoke the logSomething method, so it is created by Seam.