org.apache.pulsar.shade.javax.ws.rs.ConstrainedTo Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2012-2015 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.apache.pulsar.shade.javax.ws.rs;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* Indicates the run-time context in which an annotated JAX-RS provider
* is applicable. If a {@code @ConstrainedTo} annotation is not
* present on a JAX-RS provider type declaration, the declared provider
* may be used in any run-time context. If such a annotation is present,
* the JAX-RS runtime will enforce the specified usage restriction.
*
* The following example illustrates restricting a {@link org.apache.pulsar.shade.javax.ws.rs.ext.MessageBodyReader}
* provider implementation to run only as part of a {@link RuntimeType#CLIENT JAX-RS client run-time}:
*
*
* @ConstrainedTo(RuntimeType.CLIENT)
* public class MyReader implements MessageBodyReader {
* ...
* }
*
*
* The following example illustrates restricting a {@link org.apache.pulsar.shade.javax.ws.rs.ext.WriterInterceptor}
* provider implementation to run only as part of a {@link RuntimeType#SERVER JAX-RS server run-time}:
*
*
* @ConstrainedTo(RuntimeType.SERVER)
* public class MyWriterInterceptor implements WriterInterceptor {
* ...
* }
*
*
* It is a configuration error to constraint a JAX-RS provider implementation to
* a run-time context in which the provider cannot be applied. In such case a JAX-RS
* runtime SHOULD inform a user about the issue and ignore the provider implementation in further
* processing.
*
*
* For example, the following restriction of a {@link org.apache.pulsar.shade.javax.ws.rs.client.ClientRequestFilter}
* to run only as part of a JAX-RS server run-time would be considered invalid:
*
*
* // reported as invalid and ignored by JAX-RS runtime
* @ConstrainedTo(RuntimeType.SERVER)
* public class MyFilter implements ClientRequestFilter {
* ...
* }
*
*
* @author Marek Potociar
* @since 2.0
*/
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface ConstrainedTo {
/**
* Define the {@link RuntimeType constraint type} to be placed on a JAX-RS provider.
*/
RuntimeType value();
}