Java examples for java.lang.annotation:Enterprise Annotation
Recursively searches for enterprise annotations matching the filter.
/*// w w w.jav a 2 s .c o m * ---LICENSE_BEGIN--- * cdi-ext - Some extensions for CDI * --- * Copyright (C) 2013 Roland Bachlechner * --- * 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. * ---LICENSE_END--- */ import java.lang.annotation.Annotation; import java.util.HashSet; import java.util.Set; import javax.enterprise.context.Dependent; import javax.enterprise.inject.spi.AnnotatedType; import javax.enterprise.inject.spi.BeanManager; import javax.enterprise.util.AnnotationLiteral; public class Main{ /** * Recursively searches for annotations matching the filter. Recursion is necessary because of * stereotypes. * * @param annotation annotation to check for stereotype definition * @param beanManager bean manager * @param filter filter implementation to search for annotations * @return list of matching annotations */ private static Set<Annotation> findMatchingAnnotations( final Annotation annotation, final BeanManager beanManager, final AnnotationFilter filter, final Boolean unique) { Set<Annotation> matchingAnnotations = new HashSet<>(); Class<? extends Annotation> annotationType = annotation .annotationType(); if (filter.matches(annotation)) { matchingAnnotations.add(annotation); } if ((!unique || matchingAnnotations.isEmpty()) && beanManager.isStereotype(annotationType)) { for (Annotation stereotype : beanManager .getStereotypeDefinition(annotationType)) { matchingAnnotations.addAll(findMatchingAnnotations( stereotype, beanManager, filter, unique)); if (unique && !matchingAnnotations.isEmpty()) { break; } } } return matchingAnnotations; } }