001/* -*- mode: Java; c-basic-offset: 2; indent-tabs-mode: nil; coding: utf-8-unix -*- 002 * 003 * Copyright © 2018 microBean. 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 014 * implied. See the License for the specific language governing 015 * permissions and limitations under the License. 016 */ 017package org.microbean.kubernetes.controller.cdi.annotation; 018 019import java.lang.annotation.Documented; 020import java.lang.annotation.ElementType; 021import java.lang.annotation.Retention; 022import java.lang.annotation.RetentionPolicy; 023import java.lang.annotation.Target; 024 025/** 026 * A meta-annotation placed on annotation declarations that identifies 027 * them as linking together a <em>Kubernetes event selector</em> and a 028 * CDI event resulting from such a selection. 029 * 030 * <p>This meta-annotation is needed because two producer 031 * methods—one producing a list of, say, {@code ConfigMap}s 032 * matching criteria <em>X</em> and one producing a list of, say, 033 * {@code ConfigMap}s matching criteria <em>Y</em> are otherwise 034 * indistinguishable.</p> 035 * 036 * @author <a href="https://about.me/lairdnelson" 037 * target="_parent">Laird Nelson</a> 038 */ 039@Documented 040@Retention(value = RetentionPolicy.RUNTIME) 041@Target({ ElementType.ANNOTATION_TYPE }) 042public @interface KubernetesEventSelector { 043 044}