Transaction Attribute Type: SUPPORTS

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;
  }
}


File: EmployeeService.java



import javax.ejb.Stateful;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
@Stateful
@TransactionAttribute(TransactionAttributeType.SUPPORTS)
public class EmployeeService implements EmployeeServiceLocal, EmployeeServiceRemote {
  @PersistenceContext(unitName="EmployeeService", type=PersistenceContextType.EXTENDED)
  private EntityManager entityManager;
  public EmployeeService() {
  }


  public void doAction() throws Exception {
    Employee emp = new Employee();
    emp.setId(1);

    entityManager.merge(emp);

  }
}


File: EmployeeServiceLocal.java



import java.util.Collection;

import javax.ejb.Local;

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


}



File: EmployeeServiceRemote.java




import java.util.Collection;

import javax.ejb.Remote;

@Remote
public interface EmployeeServiceRemote{
  public void doAction()  throws Exception;  

}



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 java.util.Date;

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("EmployeeService/remote");
    
    


    
    service.doAction();

  }

}

EJB-TransactionAttributeTypeSUPPORTS.zip( 4,488 k)

Related examples in the same category

1.	Container Managed Transaction
2.	Container Managed Transaction: TransactionAttributeType.SUPPORTS
3.	Transaction Management Type: BEAN
4.	Transaction Attribute Type: REQUIRES_NEW
5.	Use User Transaction In Client Side
6.	Inject Transaction As Resource
7.	Mark Stateful Session Bean As Transaction Attribute Type: REQUIRES_NEW
8.	Container Managed Transaction: Required

Transaction Attribute Type: SUPPORTS : Transaction « EJB3 « Java

Related examples in the same category