spring-data-jpa JpaMetamodelCacheCleanup 源码
spring-data-jpa JpaMetamodelCacheCleanup 代码
文件路径：/spring-data-jpa/src/main/java/org/springframework/data/jpa/util/JpaMetamodelCacheCleanup.java
/*
* Copyright 2018-2022 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.data.jpa.util;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.context.ApplicationContext;
/**
* Simple component to be registered as Spring bean to clear the {@link JpaMetamodel} cache to avoid a memory leak in
* applications bootstrapping multiple {@link ApplicationContext}s.
*
* @author Oliver Gierke
* @author Sylvère Richard
* @see org.springframework.data.jpa.repository.config.JpaRepositoryConfigExtension#registerBeansForRoot(org.springframework.beans.factory.support.BeanDefinitionRegistry,
* org.springframework.data.repository.config.RepositoryConfigurationSource)
*/
class JpaMetamodelCacheCleanup implements DisposableBean {
@Override
public void destroy() throws Exception {
JpaMetamodel.clear();
}
}
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