Java EE 6 example source code file (SimpleEjb.java)

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Java - Java EE 6 tags/keywords

annotation, collection, ejb, entitymanager, object, object, permitall, permitall, persistencecontext, query, query, security, servlet, simpleejb, simpleentity, simpleentity, stateless, string, util, web

The Java EE 6 SimpleEjb.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2009 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
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package ejb.embedded;

import java.util.Collection;

import javax.ejb.Stateless;
import javax.annotation.security.PermitAll;

import javax.persistence.PersistenceContext;
import javax.persistence.EntityManager;
import javax.persistence.Query;

import ejb.embedded.persistence.SimpleEntity;

/**
 * @author mvatkina
 */
@Stateless
public class SimpleEjb {

    @PersistenceContext(unitName="embedded_test") EntityManager em;

    @PermitAll
    public int verify() {
        String result = null;
        Query q = em.createNamedQuery("SimpleEntity.findAll");
        Collection entities = q.getResultList();
        int s = entities.size();
        for (Object o : entities) {
            SimpleEntity se = (SimpleEntity)o;
            System.out.println("Found: " + se.getName());
        }

        return s;
   }

    @PermitAll
    public void insert(int num) {
        for (int i = 1; i <= num; i++) {
            System.out.println("Inserting # " + i);
            SimpleEntity e = new SimpleEntity(i);
            em.persist(e);
        }
    }
}