/*
* Copyright 2005-2010 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
*
* http://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.ws.server.endpoint.adapter.method;
import org.springframework.core.MethodParameter;
import org.springframework.ws.context.MessageContext;
/**
* Strategy interface used to resolve method parameters into arguments. This interface is used to allow the {@link
* org.springframework.ws.server.endpoint.adapter.DefaultMethodEndpointAdapter DefaultMethodEndpointAdapter} to be
* indefinitely extensible.
*
* @author Arjen Poutsma
* @since 2.0
*/
public interface MethodArgumentResolver {
/**
* Indicates whether the given {@linkplain MethodParameter method parameter} is supported by this resolver.
*
* @param parameter the method parameter to check
* @return {@code true} if this resolver supports the supplied parameter; {@code false} otherwise
*/
boolean supportsParameter(MethodParameter parameter);
/**
* Resolves the given parameter into a method argument.
*
* @param messageContext the current message context
* @param parameter the parameter to resolve to an argument. This parameter must have previously been passed to
* the {@link #supportsParameter(MethodParameter)} method of this interface, which must
* have returned {@code true}.
* @return the resolved argument. May be {@code null}.
* @throws Exception in case of errors
*/
Object resolveArgument(MessageContext messageContext, MethodParameter parameter) throws Exception;
}