org.springframework.data.jpa.repository.support.EntityManagerBeanDefinitionRegistrarPostProcessor Maven / Gradle / Ivy
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Spring Data module for JPA repositories.
/*
* Copyright 2014 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
*
* http://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.repository.support;
import static org.springframework.data.jpa.util.BeanDefinitionUtils.*;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.AutowireCandidateQualifier;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.data.jpa.util.BeanDefinitionUtils.EntityManagerFactoryBeanDefinition;
import org.springframework.orm.jpa.SharedEntityManagerCreator;
/**
* {@link BeanFactoryPostProcessor} to register a {@link SharedEntityManagerCreator} for every
* {@link EntityManagerFactory} bean definition found in the application context to enable autowiring
* {@link EntityManager} instances into constructor arguments. Adds the {@link EntityManagerFactory} bean name as
* qualifier to the {@link EntityManager} {@link BeanDefinition} to enable explicit references in case of multiple
* {@link EntityManagerFactory} instances.
*
* @author Oliver Gierke
*/
public class EntityManagerBeanDefinitionRegistrarPostProcessor implements BeanFactoryPostProcessor {
/*
* (non-Javadoc)
* @see org.springframework.beans.factory.config.BeanFactoryPostProcessor#postProcessBeanFactory(org.springframework.beans.factory.config.ConfigurableListableBeanFactory)
*/
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
for (EntityManagerFactoryBeanDefinition definition : getEntityManagerFactoryBeanDefinitions(beanFactory)) {
if (!(definition.getBeanFactory() instanceof BeanDefinitionRegistry)) {
continue;
}
BeanDefinitionBuilder builder = BeanDefinitionBuilder
.rootBeanDefinition("org.springframework.orm.jpa.SharedEntityManagerCreator");
builder.setFactoryMethod("createSharedEntityManager");
builder.addConstructorArgReference(definition.getBeanName());
AbstractBeanDefinition emBeanDefinition = builder.getRawBeanDefinition();
emBeanDefinition.addQualifier(new AutowireCandidateQualifier(Qualifier.class, definition.getBeanName()));
emBeanDefinition.setScope(definition.getBeanDefinition().getScope());
emBeanDefinition.setSource(definition.getBeanDefinition().getSource());
BeanDefinitionReaderUtils.registerWithGeneratedName(emBeanDefinition,
(BeanDefinitionRegistry) definition.getBeanFactory());
}
}
}