Entity Bean Listener PostRemove : Entity Bean Listener « EJB3 « Java Tutorial

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Java Tutorial » EJB3 » Entity Bean Listener 
27. 11. 2. Entity Bean Listener PostRemove

File: EmployeeBean.java

import java.util.List;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Stateless
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {
  @PersistenceContext(unitName="EmployeeService"private EntityManager manager;
  public void doAction(){
    Customer cust = new Customer();

    cust.setLastName("Bond");
    cust.setSsn(1L);
    manager.persist(cust);
    
    System.out.println("Saved");
    
    cust = manager.find(Customer.class,1L);
    System.out.println(cust.getLastName());
    
    cust.setLastName("new name");
    
    manager.persist(cust);
    
    cust = manager.find(Customer.class,1L);
    System.out.println(cust.getLastName());
    
    manager.remove(cust);
  }
}

File: EmployeeServiceLocal.java

import javax.ejb.Local;
import javax.jws.WebParam;

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


}

File: EmployeeServiceRemote.java

import javax.ejb.Remote;


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

File: EntityListener.java

import javax.persistence.PostRemove;

public class EntityListener {

  
  @PostRemove
  public void remove(Object entity)
  {
     System.out.println("@PostRemove: " + entity.getClass().getName());
  }
}

File: Customer.java

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

@Entity
@EntityListeners(EntityListener.class)
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: Main.java

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


public class Main {

  public static void main(String[] athrows Exception {

    EmployeeServiceRemote service = null;

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

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


    service.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
  Download:  EJB-EntityBeanListenerPostRemove.zip( 4,489 k)
27. 11. Entity Bean Listener
27. 11. 1. Entity Bean Listener PostUpdate
27. 11. 2. Entity Bean Listener PostRemove
27. 11. 3. Entity Bean Listener PostPersist
27. 11. 4. Entity Bean Listener PostLoad
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