org.jboss.weld.event.ObserverFactory Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of weld-servlet-shaded Show documentation
Show all versions of weld-servlet-shaded Show documentation
This jar bundles all the bits of Weld and CDI required for running in a Servlet container.
/*
* JBoss, Home of Professional Open Source
* Copyright 2008, Red Hat, Inc., 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.weld.event;
import javax.enterprise.event.Observes;
import javax.enterprise.event.TransactionPhase;
import org.jboss.weld.annotated.enhanced.EnhancedAnnotatedMethod;
import org.jboss.weld.annotated.enhanced.EnhancedAnnotatedParameter;
import org.jboss.weld.bean.RIBean;
import org.jboss.weld.bean.builtin.ExtensionBean;
import org.jboss.weld.manager.BeanManagerImpl;
/**
* Bound factory class that produces implicit observers for observer methods.
*
* @author David Allen
*/
public class ObserverFactory {
private ObserverFactory() {
}
/**
* Creates an observer
*
* @param method The observer method abstraction
* @param declaringBean The declaring bean
* @param manager The Bean manager
* @return An observer implementation built from the method abstraction
*/
public static ObserverMethodImpl create(EnhancedAnnotatedMethod method, RIBean declaringBean, BeanManagerImpl manager, boolean isAsync) {
if (declaringBean instanceof ExtensionBean) {
return new ExtensionObserverMethodImpl(method, declaringBean, manager, isAsync);
}
return new ObserverMethodImpl(method, declaringBean, manager, isAsync);
}
/**
* Tests an observer method to see if it is transactional.
*
* @param observer The observer method
* @return true if the observer method is annotated as transactional
*/
public static TransactionPhase getTransactionalPhase(EnhancedAnnotatedMethod, ?> observer) {
EnhancedAnnotatedParameter, ?> parameter = observer.getEnhancedParameters(Observes.class).iterator().next();
return parameter.getAnnotation(Observes.class).during();
}
}