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CalculatorBean.javaAPI DocJBoss 4.2.11624Fri Jul 13 20:55:22 BST 2007org.jboss.tutorial.stateless.bean

CalculatorBean.java

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.tutorial.stateless.bean;

import javax.ejb.Stateless;
import javax.sql.DataSource;
import javax.naming.InitialContext;
import javax.naming.NamingException;

@Stateless
public class CalculatorBean implements CalculatorRemote, CalculatorLocal
{
   public int add(int x, int y)
   {
      try
      {
         DataSource ds = (DataSource)new InitialContext().lookup("java:/DefaultDS");
      }
      catch (NamingException e)
      {
         throw new RuntimeException(e);
      }
      return x + y;
   }

   public int subtract(int x, int y)
   {
      return x - y;
   }
}