/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.solder.beanManager;
import javax.enterprise.inject.spi.BeanManager;
import javax.inject.Inject;
/**
* A convenient base class for obtaining a reference to the BeanManager from a
* non-managed class, or a class which may not be managed in certain
* environments (i.e., a listener in a Servlet container).
* <p/>
* <p>
* This class will first check whether the {@link BeanManager} was injected. If
* the injection point was not satisfied, then this class will use the
* {@link BeanManagerLocator} to lookup the BeanManager in an external context
* (e.g., JNDI).
* </p>
* <p/>
* <p>
* It's generally acceptable to use this class in cases where injection is not
* guaranteed. However, in general you should ensure that the classes needing
* CDI services, such as injection, be available as managed classes.
* </p>
*
* @author <a href="http://community.jboss.org/people/dan.j.allen">Dan Allen</a>
*/
public abstract class BeanManagerAware {
@Inject
private BeanManager beanManager;
private BeanManagerLocator locator = new BeanManagerLocator();
public BeanManager getBeanManager() {
if (beanManager != null) {
return beanManager;
}
return locator.getBeanManager();
}
public boolean isBeanManagerAvailable() {
if (beanManager != null) {
return true;
}
return locator.isBeanManagerAvailable();
}
public boolean isBeanManagerInjected() {
return beanManager != null;
}
public BeanManagerLocator getBeanManagerLocator() {
return locator;
}
}