https://github.com/spring-projects/spring-framework: Spring Web MVC (Spring IO)
  • Juergen Hoeller 
/*
 * Copyright 2002-2017 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.servlet.resource;

import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;


Extended interface for a Resource to be written to an HTTP response. 
Author:Brian Clozel
Since:5.0
/**
 * Extended interface for a {@link Resource} to be written to an
 * HTTP response.
 *
 * @author Brian Clozel
 * @since 5.0
 */
public interface HttpResource extends Resource {

	
The HTTP headers to be contributed to the HTTP response
that serves the current resource.

Returns:the HTTP response headers
/**
	 * The HTTP headers to be contributed to the HTTP response
	 * that serves the current resource.
	 * @return the HTTP response headers
	 */
	HttpHeaders getResponseHeaders();

}