/*
 * 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
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.springframework.expression;

import java.util.List;

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

A constructor resolver attempts locate a constructor and returns a ConstructorExecutor that can be used to invoke that constructor. The ConstructorExecutor will be cached but if it 'goes stale' the resolvers will be called again.
Author:Andy Clement
Since:3.0
/** * A constructor resolver attempts locate a constructor and returns a ConstructorExecutor * that can be used to invoke that constructor. The ConstructorExecutor will be cached but * if it 'goes stale' the resolvers will be called again. * * @author Andy Clement * @since 3.0 */
@FunctionalInterface public interface ConstructorResolver {
Within the supplied context determine a suitable constructor on the supplied type that can handle the specified arguments. Return a ConstructorExecutor that can be used to invoke that constructor (or null if no constructor could be found).
Params:
  • context – the current evaluation context
  • typeName – the type upon which to look for the constructor
  • argumentTypes – the arguments that the constructor must be able to handle
Returns:a ConstructorExecutor that can invoke the constructor, or null if non found
/** * Within the supplied context determine a suitable constructor on the supplied type * that can handle the specified arguments. Return a ConstructorExecutor that can be * used to invoke that constructor (or {@code null} if no constructor could be found). * @param context the current evaluation context * @param typeName the type upon which to look for the constructor * @param argumentTypes the arguments that the constructor must be able to handle * @return a ConstructorExecutor that can invoke the constructor, or null if non found */
@Nullable ConstructorExecutor resolve(EvaluationContext context, String typeName, List<TypeDescriptor> argumentTypes) throws AccessException; }