Stateful Session Bean Lifecycle : Stateful Session Bean « EJB3 « Java Tutorial

1. Java Tutorial
2. EJB3
3. Stateful Session Bean

File: Customer.java

import javax.persistence.Entity;
import javax.persistence.EntityListeners;
import javax.persistence.Id;
import javax.persistence.PostRemove;

@Entity
public class Customer implements java.io.Serializable {
  private String firstName;

  private String lastName;
  @Id
  private long ssn;

  public String getFirstName() {
    return firstName;
  }

  public void setFirstName(String firstName) {
    this.firstName = firstName;
  }


  public String getLastName() {
    return lastName;
  }

  public void setLastName(String lastName) {
    this.lastName = lastName;
  }


  public long getSsn() {
    return ssn;
  }

  public void setSsn(long ssn) {
    this.ssn = ssn;
  }

}

File: EmployeeBean.java

import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.ejb.PostActivate;
import javax.ejb.PrePassivate;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Stateful
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
  @PersistenceContext(unitName = "EmployeeService")
  private EntityManager manager;

  public void doAction(){
    
    
  }
  @PostConstruct
  public void init() {

  }

  @PostActivate
  public void activate() {
  }

  @PreDestroy
  public void shutdown() {
     
  }
  @PrePassivate
  public void passivate() {
      System.out.println("passivate");
  }
}

File: EmployeeServiceLocal.java

import javax.ejb.Local;

@Local
public interface EmployeeServiceLocal {
  public void doAction();

}

File: EmployeeServiceRemote.java

import javax.ejb.Remote;


@Remote
public interface EmployeeServiceRemote {
  public void doAction();
}

File: jndi.properties

java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099

File: Main.java

import javax.ejb.EJB;
import javax.naming.InitialContext;



public class Main {

  public static void main(String[] a) throws Exception {

    EmployeeServiceRemote service = null;

    // Context compEnv = (Context) new InitialContext().lookup("java:comp/env");

    // service = (HelloService)new
    // InitialContext().lookup("java:comp/env/ejb/HelloService");
    service = (EmployeeServiceRemote) new InitialContext().lookup("EmployeeBean/remote");


    service.doAction();
    


  }

}

27.3.Stateful Session Bean
	27.3.1.	Stateful Session Bean With Remove Method
	27.3.2.	Stateful Session Bean Lifecycle