spring MetadataAwareAspectInstanceFactory 源码
spring MetadataAwareAspectInstanceFactory 代码
文件路径：/spring-aop/src/main/java/org/springframework/aop/aspectj/annotation/MetadataAwareAspectInstanceFactory.java
/*
* 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
*
* 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.aop.aspectj.annotation;
import org.springframework.aop.aspectj.AspectInstanceFactory;
import org.springframework.lang.Nullable;
/**
* Subinterface of {@link org.springframework.aop.aspectj.AspectInstanceFactory}
* that returns {@link AspectMetadata} associated with AspectJ-annotated classes.
*
* <p>Ideally, AspectInstanceFactory would include this method itself, but because
* AspectMetadata uses Java-5-only {@link org.aspectj.lang.reflect.AjType},
* we need to split out this subinterface.
*
* @author Rod Johnson
* @since 2.0
* @see AspectMetadata
* @see org.aspectj.lang.reflect.AjType
*/
public interface MetadataAwareAspectInstanceFactory extends AspectInstanceFactory {
/**
* Return the AspectJ AspectMetadata for this factory's aspect.
* @return the aspect metadata
*/
AspectMetadata getAspectMetadata();
/**
* Return the best possible creation mutex for this factory.
* @return the mutex object (may be {@code null} for no mutex to use)
* @since 4.3
*/
@Nullable
Object getAspectCreationMutex();
}
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