/*
 * Copyright 2002-2013 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
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 * Unless required by applicable law or agreed to in writing, software
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package org.springframework.expression;

import java.util.List;

import org.springframework.core.convert.TypeDescriptor;
import org.springframework.lang.Nullable;

A method resolver attempts locate a method and returns a command executor that can be used to invoke that method. The command executor will be cached but if it 'goes stale' the resolvers will be called again.
Author:Andy Clement
Since:3.0
/** * A method resolver attempts locate a method and returns a command executor that can be * used to invoke that method. The command executor will be cached but if it 'goes stale' * the resolvers will be called again. * * @author Andy Clement * @since 3.0 */
public interface MethodResolver {
Within the supplied context determine a suitable method on the supplied object that can handle the specified arguments. Return a MethodExecutor that can be used to invoke that method, or null if no method could be found.
Params:
  • context – the current evaluation context
  • targetObject – the object upon which the method is being called
  • argumentTypes – the arguments that the constructor must be able to handle
Returns:a MethodExecutor that can invoke the method, or null if the method cannot be found
/** * Within the supplied context determine a suitable method on the supplied object that * can handle the specified arguments. Return 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 argumentTypes the arguments that the constructor must be able to handle * @return a MethodExecutor that can invoke the method, or null if the method cannot be found */
@Nullable MethodExecutor resolve(EvaluationContext context, Object targetObject, String name, List<TypeDescriptor> argumentTypes) throws AccessException; }