unable to inject entityManager

[mvreddy.madhu]

hi all,
        Here I am doing jsf validation.I have written jsf validation class,but in that class i have injected entityManager.But i am not able to execute the query here. can any one help me i am also sending my code.


package com.infyz.toms.validator;

import java.io.Serializable;

import javax.persistence.EntityManager;
import javax.persistence.NoResultException;

import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Logger;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.faces.Validator;
import org.jboss.seam.annotations.Transactional;
import javax.faces.component.UIComponent;
import javax.faces.validator.ValidatorException;
import org.jboss.seam.log.Log;
import org.jboss.seam.annotations.Logger;
import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import com.infyz.toms.master.session.CountrySS;
import com.infyz.toms.master.entity.Country;
import org.jboss.seam.Component;
import org.jboss.seam.annotations.intercept.BypassInterceptors;

@Name("countryUniqueValidation")
@Validator
@Transactional
@BypassInterceptors
public class CountryCodeValidation implements javax.faces.validator.Validator, Serializable {
     
     
     private static final long serialVersionUID = 1306935387262157385L;

     @In
     EntityManager em;
     
     @Logger
     private Log log;
     
     public void validate(FacesContext facesContext, UIComponent component,Object value) throws ValidatorException {

          String code = (String) value;
                    Integer countryId = (Integer) component.getAttributes().get("countryId");

             String qry = null;
             qry = "select countryId from Country where countryCode = :countryCode";
             Integer ctrId = 0;
            
             try{
                  ctrId = (Integer) em.createQuery(qry)
                    .setParameter("countryCode", code).getSingleResult();
                 
                  if (ctrId != null && !ctrId.equals(countryId)) {
                         throw new ValidatorException(new FacesMessage("Name must be unique"));
                    }
             }
            catch (NoResultException nre){
              // that's fine - this name is unique.
            }
            catch (Exception e){
                 //log.error("Runtime Error", e.getMessage(), e.getStackTrace());
            }
     }

     
}

[amitev]

@BypassInterceptors means - don't call any interceptors, even the BijectionInterceptor, so no injection/outjection won't occur. Try:

Component.getInstance("em");

[mvreddy.madhu]

i have used Component.getInstance(em);
            but no change occurs

[jamesjmp]

Is your project an ear one, with EJBs?
In that case try this

@PersistenceContext
private EntityManager em;

and don´t forget what Adrian has sais about accessing with Component.getInstance