spring HandlerMethodArgumentResolver 源码
spring HandlerMethodArgumentResolver 代码
文件路径：/spring-webflux/src/main/java/org/springframework/web/reactive/result/method/HandlerMethodArgumentResolver.java
/*
* Copyright 2002-2016 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.reactive.result.method;
import reactor.core.publisher.Mono;
import org.springframework.core.MethodParameter;
import org.springframework.web.reactive.BindingContext;
import org.springframework.web.server.ServerWebExchange;
/**
* Strategy to resolve the argument value for a method parameter in the context
* of the current HTTP request.
*
* @author Rossen Stoyanchev
* @since 5.0
*/
public interface HandlerMethodArgumentResolver {
/**
* Whether this resolver supports the given method parameter.
* @param parameter the method parameter
*/
boolean supportsParameter(MethodParameter parameter);
/**
* Resolve the value for the method parameter.
* @param parameter the method parameter
* @param bindingContext the binding context to use
* @param exchange the current exchange
* @return {@code Mono} for the argument value, possibly empty
*/
Mono<Object> resolveArgument(
MethodParameter parameter, BindingContext bindingContext, ServerWebExchange exchange);
}
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