javax.ws.rs.ext.ContextResolver Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2012 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 org.testifyproject.testifyprojectpliance 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 org.testifyproject.testifyprojectsignates 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 org.testifyproject.testifyprojectcision 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 javax.ws.rs.ext;
/**
* Contract for a provider that supplies context information to resource
* classes and other providers.
*
* A {@code ContextResolver} implementation may be annotated
* with {@link javax.ws.rs.Produces} to restrict the media types for
* which it will be considered suitable.
*
* Providers implementing {@code ContextResolver} contract must be either programmatically
* registered in a JAX-RS runtime or must be annotated with
* {@link javax.ws.rs.ext.Provider @Provider} annotation to be automatically discovered
* by the JAX-RS runtime during a provider scanning phase.
*
*
* @param type of the context
* @author Paul Sandoz
* @author Marc Hadley
* @see javax.ws.rs.core.Context
* @see Providers#getContextResolver(Class, javax.ws.rs.core.MediaType)
* @see Provider
* @see javax.ws.rs.Produces
* @since 1.0
*/
public interface ContextResolver {
/**
* Get a context of type {@code T} that is applicable to the supplied
* type.
*
* @param type the class of object for which a context is org.testifyproject.testifyprojectsired
* @return a context for the supplied type or {@code null} if a
* context for the supplied type is not available from this provider.
*/
T getContext(Class type);
}