spring BeanRegistrationAotProcessor 源码
spring BeanRegistrationAotProcessor 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/aot/BeanRegistrationAotProcessor.java
/*
* Copyright 2002-2022 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.beans.factory.aot;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.support.RegisteredBean;
import org.springframework.lang.Nullable;
/**
* AOT processor that makes bean registration contributions by processing
* {@link RegisteredBean} instances.
*
* <p>{@link BeanRegistrationAotProcessor} implementations may be registered in
* a {@value AotServices#FACTORIES_RESOURCE_LOCATION} resource or as a bean.
*
* <p>
* Note: Using this interface on a registered bean will cause the bean
* <em>and</em> all of its dependencies to be initialized during AOT processing.
* We generally recommend that interface is only used with infrastructure beans
* such as {@link BeanFactoryPostProcessor} which have limited dependencies and
* are already initialized early in the bean factory lifecycle.
*
* @author Phillip Webb
* @since 6.0
* @see BeanRegistrationAotContribution
*/
@FunctionalInterface
public interface BeanRegistrationAotProcessor {
/**
* Process the given {@link RegisteredBean} instance ahead-of-time and
* return a contribution or {@code null}.
* <p>
* Processors are free to use any techniques they like to analyze the given
* instance. Most typically use reflection to find fields or methods to use
* in the contribution. Contributions typically generate source code or
* resource files that can be used when the AOT optimized application runs.
* <p>
* If the given instance isn't relevant to the processor, it should return a
* {@code null} contribution.
* @param registeredBean the registered bean to process
* @return a {@link BeanRegistrationAotContribution} or {@code null}
*/
@Nullable
BeanRegistrationAotContribution processAheadOfTime(RegisteredBean registeredBean);
/**
* Return if the bean instance associated with this processor should be
* excluded from AOT processing itself. By default, this method returns
* {@code true} to automatically exclude the bean, if the definition should
* be written then this method may be overridden to return {@code true}.
* @return if the bean should be excluded from AOT processing
* @see BeanRegistrationExcludeFilter
*/
default boolean isBeanExcludedFromAotProcessing() {
return true;
}
}
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