package ejb.demo;

/**
* DemoBean -- This is implemented by the EnterPrise`Bean. 
* This class must extend`javax.ejb.SessionBean and implement
* the methods in this interface as well as providing
* the implementation of the business methods.
*
*/

import javax.ejb.*;
import javax.naming.*;
import java.rmi.*;

public class DemoBean implements javax.ejb.SessionBean {

	//Instance member variables.
	//

	// Session context, can be used to obtain handles etc
	//

	javax.ejb.SessionContext ejbSessionContext = null;

	//Getter/setter methods
	//

	// TBD:  Add implementations for any additional remote method interfaces
	//

	// The default ejbCreate method.
	//

	public void ejbCreate( )
		throws javax.ejb.CreateException, java.rmi.RemoteException
	{
	}

	// TBD:  If any other ejbCreate's are added manually to the home interface, define them.
	//

	// Other methods required in a session bean
	//

	public void setSessionContext( javax.ejb.SessionContext ejbSessionContext )
		throws RemoteException
	{
		this.ejbSessionContext = ejbSessionContext;
	}

	public void unsetSessionContext()
		throws RemoteException
	{
		this.ejbSessionContext = null;
	}

	public void ejbRemove()
		throws java.rmi.RemoteException, javax.ejb.EJBException
	{
	// TBD:  Do any processing here when instance is being removed
	}

	public void ejbActivate()
		throws java.rmi.RemoteException
	{
	// TBD:  Restore any saved resources
	}

	public void ejbPassivate()
		throws java.rmi.RemoteException
	{
	// TBD:  Save any resources here before bean is passivated
	}

    /**
     * **** HERE IS THE BUSINESS LOGIC *****
     * Do the demoSelect() but don't even go to
     * the database in this eg but instead just
     * return a String.
     * The really BIG thing to notice here is that
     * this is the only code we have invented at all
     * the rest of the code has been declarations
     * or simply implementing methods which are
     * part of the EJB interfaces and in this example
     * are not even used.
     */
  public String demoSelect()
    throws RemoteException
  {
    return("hello world");
  }
}