javax.ws.rs.container.DynamicFeature Maven / Gradle / Ivy
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/*
* Copyright (c) 2011, 2017 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package javax.ws.rs.container;
import javax.ws.rs.core.FeatureContext;
import javax.ws.rs.ext.ReaderInterceptor;
import javax.ws.rs.ext.WriterInterceptor;
/**
* A meta-provider for dynamic registration of post-matching providers
* during an application setup at deployment time.
*
* Dynamic feature is used by the runtime to register providers that shall be applied
* to a particular resource class and method and overrides any annotation-based binding
* definitions defined on any registered resource filter or interceptor instance.
*
* Providers implementing this interface MAY be annotated with
* {@link javax.ws.rs.ext.Provider @Provider} annotation in order to be
* discovered by the runtime when scanning for resources and providers.
* This provider types is supported only as part of the Server API.
*
*
* @author Santiago Pericas-Geertsen
* @author Bill Burke
* @author Marek Potociar
* @see javax.ws.rs.NameBinding
* @since 2.0
*/
public interface DynamicFeature {
/**
* A callback method called by the runtime during the application
* deployment to register provider instances or classes in a
* {@link javax.ws.rs.core.Configuration runtime configuration} scope of a particular {@link javax.ws.rs.HttpMethod
* resource or sub-resource method}; i.e. the providers that should be dynamically bound
* to the method.
*
* The registered provider instances or classes are expected to be implementing one
* or more of the following interfaces:
*
*
* - {@link ContainerRequestFilter}
* - {@link ContainerResponseFilter}
* - {@link ReaderInterceptor}
* - {@link WriterInterceptor}
* - {@link javax.ws.rs.core.Feature}
*
*
* A provider instance or class that does not implement any of the interfaces
* above may be ignored by the API implementation. In such case a
* {@link java.util.logging.Level#WARNING warning} message must be logged.
* API implementations may support additional provider contracts that
* can be registered using a dynamic feature concept.
*
*
* Conceptually, this callback method is called during a {@link javax.ws.rs.HttpMethod
* resource or sub-resource method} discovery phase (typically once per each discovered
* resource or sub-resource method) to register provider instances or classes in a
* {@code configuration} scope of each particular method identified by the supplied
* {@link ResourceInfo resource information}.
* The responsibility of the feature is to properly update the supplied {@code configuration}
* context.
*
*
* @param resourceInfo resource class and method information.
* @param context configurable resource or sub-resource method-level runtime context
* associated with the {@code resourceInfo} in which the feature
*/
public void configure(ResourceInfo resourceInfo, FeatureContext context);
}