Using same class as JPA entity and JSF managed bean

Question

So lets say I have a JSF managed bean called Company. This bean is also a JPA entity class. It looks like this:

package com.microtekcomputers.models;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.ViewScoped;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;

import com.microtekcomputers.services.DaoCompany;

@Entity
@ManagedBean
@ViewScoped
public class Company implements Serializable{

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    private int company_id;

    @ManagedProperty("#{companyService}")
    private DaoCompany daoCompany;

    @Column
    private String name;

    private String address1;

    private String address2;

    private String city;

    private String state;

    private String zipcode;

    private String contact;

    private String tel1;

    private String tel2;

    private String fax;

    private String comments;

    //collection of networks, ISPs, software, hardware
    @OneToMany(mappedBy="company")
    private Set<Network> networks = new HashSet<Network>();

    @OneToMany(mappedBy="company")
    private Set<ISP> isps = new HashSet<ISP>();

    @OneToMany(mappedBy="company")
    private Set<Software> softwares = new HashSet<Software>();

    @OneToMany(mappedBy="company")
    private Set<Hardware> hardwares = new HashSet<Hardware>();

    /* I deleted the other getters and setters (but they go here) */

    //I NEED THE SETTER FOR MY MANAGED PROPERTY
    public void setDaoCompany(DaoCompany daoCompany) {
        this.daoCompany = daoCompany;
    }


    //dao methods
    public void insertCompany()
    {
        daoCompany = new DaoCompany();

        daoCompany.insertCompany(this);
    }
}

The idea is to provide the user a form to write company data (name, address, city, etc) and on the submit button, I would call the insertCompany(). I have a ManagedProperty for my DaoCompany class. Here is the code:

package com.microtekcomputers.services;

import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

import com.microtekcomputers.models.Company;

@ManagedBean(name="companyService")
@ApplicationScoped
public class DaoCompany {

    //I created a singleton class for my Session Factory
    private SessionFactory sf = SingletonSessionFactory.getSessionFactory();

    private Session session = sf.openSession();

    public void insertCompany(Company company)
    {
        Transaction t = session.beginTransaction();

        session.save(company);

        t.commit();

        session.flush();

        session.close();        

    }

    public void updateCompany(Company company)
    {
        Transaction t = session.beginTransaction();

        session.update(company);

        t.commit();

        session.flush();

        session.close();
    }
}

My question is if it is good practice to use both JSF managed bean and JPA entity on the same class. If not, what could be my alternative? Because don't I need the insertCompany() on my bean class to be able to access it on the xhtml?