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 025import java.util.Map; // for javadoc only 026 027import javax.enterprise.util.AnnotationLiteral; 028 029import javax.inject.Qualifier; 030 031import io.fabric8.kubernetes.api.model.HasMetadata; // for javadoc only 032 033/** 034 * A {@linkplain Qualifier qualifier annotation} that indicates that 035 * the annotated element—which as of this writing must be a 036 * {@link Map Map<String, T>}, where {@code <T>} is a type that 037 * extends {@link HasMetadata}—is to be used to cache Kubernetes 038 * resources. 039 * 040 * @author <a href="https://about.me/lairdnelson" 041 * target="_parent">Laird Nelson</a> 042 */ 043@Documented 044@Qualifier 045@Retention(value = RetentionPolicy.RUNTIME) 046@Target({ ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.TYPE }) 047public @interface KubernetesResourceCache { 048 049 public static final class Literal extends AnnotationLiteral<KubernetesResourceCache> implements KubernetesResourceCache { 050 051 private static final long serialVersionUID = 1L; 052 053 public static final KubernetesResourceCache INSTANCE = new Literal(); 054 055 } 056 057}