1 /* 2 * JBoss, Home of Professional Open Source 3 * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual 4 * contributors by the @authors tag. See the copyright.txt in the 5 * distribution for a full listing of individual contributors. 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.jboss.as.quickstarts.tasksrs.model; 18 19 import java.util.logging.Logger; 20 21 import javax.ejb.Stateful; 22 import javax.enterprise.context.RequestScoped; 23 import javax.enterprise.inject.Produces; 24 import javax.enterprise.inject.spi.InjectionPoint; 25 import javax.persistence.EntityManager; 26 import javax.persistence.PersistenceContext; 27 import javax.persistence.PersistenceContextType; 28 29 /** 30 * This class uses CDI to alias Java EE resources, such as the persistence context, to CDI beans. As it is a stateful bean, it 31 * can produce extended persistence contexts. 32 * 33 * Example injection on a managed bean field: 34 * 35 * @Inject private EntityManager em; 36 * 37 * @author Pete Muir 38 * @author Lukas Fryc 39 * 40 */ 41 @Stateful 42 @RequestScoped 43 public class Resources { 44 45 @PersistenceContext(type = PersistenceContextType.EXTENDED) 46 private EntityManager em; 47 48 @Produces 49 public EntityManager getEm() { 50 return em; 51 } 52 53 @Produces 54 public Logger getLogger(InjectionPoint ip) { 55 String category = ip.getMember().getDeclaringClass().getName(); 56 return Logger.getLogger(category); 57 } 58 }