Why null values are stored on calling persist method

[swathis]

Hi all, I have created an xhtml file, entity class,bean class and wrote an action class for it, but when I click on save null values are getting stored in database, can any body tell me what mistake did I do..... here  is my action class...

CustomerHome.java

 package com.manam.mewe.agile.pms.customer;

import java.io.Serializable;

import org.jboss.seam.annotations.Begin;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.framework.EntityHome;

import com.manam.mewe.agile.pms.data.DoCustomer;
import com.manam.mewe.agile.pms.entity.ccr.Customer;


@Name("customerHome")
public class CustomerHome extends EntityHome<Customer> implements Serializable{

     @RequestParameter
     String customercustId;
     
     private static final long serialVersionUID = 7256951482186187096L;
     
     @In(create=true)
     DoCustomer doCustomer;
     
     @Override @Begin(join=true)
    public void create() {
        super.create();
    }
     
     public String persist(){
        return super.persist();
    }
     
     
     @Override
     public Object getId() {
          if (customercustId == null) {
               return super.getId();
          } else {
               return customercustId;
          }
     }
     
     
     
}

[rmuruga]

Please Post your XHTML file

[swathis]

xhtml file is too lengthy to  post

[swathis]

I have changed the code even its storing null values....
I need help please....

 package com.manam.mewe.agile.pms.customer;

import java.io.Serializable;

import org.apache.commons.beanutils.BeanUtils;
import org.jboss.seam.annotations.Begin;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.framework.EntityHome;
import org.jboss.seam.security.Identity;

import com.manam.mewe.agile.pms.data.DoCustomer;
import com.manam.mewe.agile.pms.entity.ccr.Customer;


@Name("customerHome")
public class CustomerHome extends EntityHome<Customer> implements Serializable{

     @RequestParameter
     String customercustId;
     
     @In Identity identity;
     
     private static final long serialVersionUID = 7256951482186187096L;
     
     @In(create=true)
     DoCustomer doCustomer;
     
     @Override @Begin(join=true)
    public void create() {
           super.create();
        try{
                BeanUtils.copyProperties(doCustomer, getInstance());
           }catch(Exception ee){
                ee.printStackTrace();
           }
          
    }
     
     public String persist(){
       
       try{
               BeanUtils.copyProperties(getInstance(), doCustomer);
          }catch(Exception f){
               f.printStackTrace();
          }
          super.persist();
       return "done";
    }
     
     
     @Override
     public Object getId() {
          if (customercustId == null) {
               return super.getId();
          } else {
               return customercustId;
          }
     }
     
          
}