sessionaccountbean.java

java的一系列产品中包括jsme,jmse,j2ee,本文件提供j2ee实现的源代码.

package bankaccount;

import javax.ejb.DuplicateKeyException;
import javax.ejb.EJBException;
import javax.ejb.CreateException;

import javax.ejb.SessionBean;
import javax.ejb.SessionContext;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;

public class sessionAccountBean implements SessionBean {

  private SessionContext ctx;
  private entityAccountHome entityaccountHome;

  public void setSessionContext(SessionContext c) {
    ctx = c;
    try {
      Context ic = new InitialContext();
      Object h = ic.lookup("java:/comp/env/ejb/entityAccountHome");
      entityaccountHome=(entityAccountHome)
          PortableRemoteObject.narrow(h,entityAccountHome.class);
    } catch (NamingException ne) {
      System.err.println("lookup entityAccountHome failed");
      //ne.printStackTrace();
      //throw new EJBException(ne);
    }
  }

  public void enterNewAccount(int accountID,String ownerName,
     float accountValue,int accountLevel)
  {
    try {
      entityaccountHome.create(new Integer(accountID),ownerName,
                         accountValue,accountLevel);
    } catch (DuplicateKeyException dke) {
      // account already exists
      System.out.println("Account with accountID: "+accountID
           +" already exists.");
      //throw new CreateException("Account with accountID: "+accountID
      //  +" already exists.");
    } catch (Exception e) {
      // unexpected error
      System.out.println("Exception when execute enterNewAccount(()");
      //e.printStackTrace();
      //throw new EJBException(e);
    }
  }
  
  public void ejbCreate() { System.out.println("sessionAccountBean:ejbCreate()"); }
  public void ejbRemove() { System.out.println("sessionAccountBean:ejbRemove()"); }
  public void ejbActivate() {}
  public void ejbPassivate() {}
}