Stateful: name() : Stateful « javax.ejb « Java by API

1. Java by API
2. javax.ejb
3. Stateful

Stateful: name()

  



File: EmployeeBean.java

import javax.ejb.Stateful;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;

@Stateful(name = "MyEmployeeBean")
public class EmployeeBean implements EmployeeServiceLocal, EmployeeServiceRemote {

  public EmployeeBean() {
  }

  public void doAction() {
    System.out.println("Processing...");
  }

  @AroundInvoke
  public Object TimerLog(InvocationContext ctx) throws Exception {
    String beanClassName = ctx.getClass().getName();
    String businessMethodName = ctx.getMethod().getName();
    String target = beanClassName + "." + businessMethodName;
    long startTime = System.currentTimeMillis();
    System.out.println("Invoking " + target);
    try {
      return ctx.proceed();
    } finally {
      System.out.println("Exiting " + target);
      long totalTime = System.currentTimeMillis() - startTime;
      System.out.println("Business method " + businessMethodName + "in " + beanClassName + "takes "
          + totalTime + "ms to execute");
    }
  }
}


File: EmployeeServiceLocal.java

import javax.ejb.Local;
import javax.ejb.Remote;


@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("MyEmployeeBean/remote");

    service.doAction();

  }

}


File: Employee.java

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

@Entity

public class Employee implements java.io.Serializable {
  private int id;

  private String firstName;

  private String lastName;

  @Id
  @GeneratedValue
  public int getId() {
    return id;
  }


  @PostRemove
  public void postRemove()
  {
     System.out.println("@PostRemove");
  }

  public void setId(int id) {
    this.id = id;
  }

  public String getFirstName() {
    return firstName;
  }

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

  public String getLastName() {
    return lastName;
  }

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






   
    
  

EJB-UseStatelessAnnotationToChangeEjbName.zip( 4,489 k)

Related examples in the same category

1.

javax.ejb.Stateful