001/* 002 * Copyright 2002-2019 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.web.servlet.function; 018 019/** 020 * Represents a function that handles a {@linkplain ServerRequest request}. 021 * 022 * @author Arjen Poutsma 023 * @since 5.2 024 * @param <T> the type of the response of the function 025 * @see RouterFunction 026 */ 027@FunctionalInterface 028public interface HandlerFunction<T extends ServerResponse> { 029 030 /** 031 * Handle the given request. 032 * @param request the request to handle 033 * @return the response 034 */ 035 T handle(ServerRequest request) throws Exception; 036 037}