001package ball.http.annotation;
002/*-
003 * ##########################################################################
004 * Web API Client (HTTP) Utilities
005 * $Id: Protocol.java 6104 2020-06-03 18:26:30Z ball $
006 * $HeadURL: svn+ssh://svn.hcf.dev/var/spool/scm/repository.svn/ball-http/trunk/src/main/java/ball/http/annotation/Protocol.java $
007 * %%
008 * Copyright (C) 2016 - 2020 Allen D. Ball
009 * %%
010 * Licensed under the Apache License, Version 2.0 (the "License");
011 * you may not use this file except in compliance with the License.
012 * You may obtain a copy of the License at
013 *
014 *      http://www.apache.org/licenses/LICENSE-2.0
015 *
016 * Unless required by applicable law or agreed to in writing, software
017 * distributed under the License is distributed on an "AS IS" BASIS,
018 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
019 * See the License for the specific language governing permissions and
020 * limitations under the License.
021 * ##########################################################################
022 */
023import ball.annotation.processing.AnnotationValueMustConvertTo;
024import ball.annotation.processing.TargetMustBe;
025import java.lang.annotation.Documented;
026import java.lang.annotation.Retention;
027import java.lang.annotation.Target;
028import java.nio.charset.Charset;
029
030import static java.lang.annotation.ElementType.TYPE;
031import static java.lang.annotation.RetentionPolicy.RUNTIME;
032import static javax.lang.model.element.ElementKind.INTERFACE;
033
034/**
035 * Protocol interface marker {@link java.lang.annotation.Annotation}.
036 *
037 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball}
038 * @version $Revision: 6104 $
039 */
040@Documented
041@Retention(RUNTIME)
042@Target({ TYPE })
043@AnnotationValueMustConvertTo(name = "charset",
044                              value = Charset.class, method = "forName")
045@TargetMustBe(INTERFACE)
046public @interface Protocol {
047    String charset() default "UTF-8";
048}