spring EmbeddedDatabaseFactoryBean 源码
spring EmbeddedDatabaseFactoryBean 代码
文件路径：/spring-jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseFactoryBean.java
/*
* Copyright 2002-2017 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.jdbc.datasource.embedded;
import javax.sql.DataSource;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.jdbc.datasource.init.DatabasePopulator;
import org.springframework.jdbc.datasource.init.DatabasePopulatorUtils;
import org.springframework.lang.Nullable;
/**
* A subclass of {@link EmbeddedDatabaseFactory} that implements {@link FactoryBean}
* for registration as a Spring bean. Returns the actual {@link DataSource} that
* provides connectivity to the embedded database to Spring.
*
* <p>The target {@link DataSource} is returned instead of an {@link EmbeddedDatabase}
* proxy since the {@link FactoryBean} will manage the initialization and destruction
* lifecycle of the embedded database instance.
*
* <p>Implements {@link DisposableBean} to shut down the embedded database when the
* managing Spring container is being closed.
*
* @author Keith Donald
* @author Juergen Hoeller
* @since 3.0
*/
public class EmbeddedDatabaseFactoryBean extends EmbeddedDatabaseFactory
implements FactoryBean<DataSource>, InitializingBean, DisposableBean {
@Nullable
private DatabasePopulator databaseCleaner;
/**
* Set a script execution to be run in the bean destruction callback,
* cleaning up the database and leaving it in a known state for others.
* @param databaseCleaner the database script executor to run on destroy
* @see #setDatabasePopulator
* @see org.springframework.jdbc.datasource.init.DataSourceInitializer#setDatabaseCleaner
*/
public void setDatabaseCleaner(DatabasePopulator databaseCleaner) {
this.databaseCleaner = databaseCleaner;
}
@Override
public void afterPropertiesSet() {
initDatabase();
}
@Override
@Nullable
public DataSource getObject() {
return getDataSource();
}
@Override
public Class<? extends DataSource> getObjectType() {
return DataSource.class;
}
@Override
public boolean isSingleton() {
return true;
}
@Override
public void destroy() {
if (this.databaseCleaner != null && getDataSource() != null) {
DatabasePopulatorUtils.execute(this.databaseCleaner, getDataSource());
}
shutdownDatabase();
}
}
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