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/*
* Copyright 2002-2024 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.expression;
import java.util.List;
import org.springframework.core.convert.TypeDescriptor;
import org.springframework.lang.Nullable;
/**
* A method resolver attempts to locate a method and returns a
* {@link MethodExecutor} that can be used to invoke that method.
*
* The {@code MethodExecutor} will be cached, but if it becomes stale the
* resolvers will be called again.
*
* @author Andy Clement
* @author Sam Brannen
* @since 3.0
* @see MethodExecutor
* @see ConstructorResolver
*/
@FunctionalInterface
public interface MethodResolver {
/**
* Within the supplied context, resolve a suitable method on the supplied
* object that can handle the specified arguments.
*
Returns a {@link MethodExecutor} that can be used to invoke that method,
* or {@code null} if no method could be found.
* @param context the current evaluation context
* @param targetObject the object upon which the method is being called
* @param name the name of the method
* @param argumentTypes the types of arguments that the method must be able
* to handle
* @return a {@code MethodExecutor} that can invoke the method, or {@code null}
* if the method cannot be found
*/
@Nullable
MethodExecutor resolve(EvaluationContext context, Object targetObject, String name,
List argumentTypes) throws AccessException;
}