Spring + Hibernate 동적 Session Factory 전환 실현 (개선 판)
문제점 발견: 여러 개의 HibernateTransactionManager 와 여러 개의 Spring 절단면 을 설정 해 야 합 니 다. 이렇게 해서 두 가지 문 제 를 가 져 옵 니 다. 1. 프로그램의 효율 이 떨 어 집 니 다. Spring 이 여러 번 Advice 를 차단 하기 때 문 입 니 다. 2. 그 중 하나 인 Session Factory 연결 에 문제 가 생기 면,전체 시스템 이 작 동 하지 못 할 수 있 습 니 다. 오늘 은 이러한 문 제 를 해결 하 는 새로운 방법 을 연구 해 냈 습 니 다. 1. 데이터 원본 과 Hibernate Session Factory 설정:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- FOR SqlServer-->
<bean id="SqlServer_DataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver" />
<property name="url"
value="url" />
<property name="username" value="username" />
<property name="password" value="password" />
</bean>
<bean id="SqlServer_SessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
p:mappingLocations="classpath:/com/entity/*.hbm.xml">
<property name="dataSource" ref="SqlServer_DataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.query.factory_class">org.hibernate.hql.ast.ASTQueryTranslatorFactory</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.SQLServer2008Dialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
</bean>
<!-- FOR Oracle -->
<bean id="Oracle _DataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@localhost:1521/orcl" />
<property name="username" value="username" />
<property name="password" value="password" />
</bean>
<bean id="Oracle_SessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"
p:mappingLocations="classpath:/com/entity/*.hbm.xml">
<property name="dataSource" ref="Oracle_DataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.query.factory_class">org.hibernate.hql.ast.ASTQueryTranslatorFactory</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.format_sql">true</prop>
</props>
</property>
</bean>
</beans> 2. 확장 인터페이스 DynamicSessionFactory Inf 계승 SessionFactory 정의
import org.hibernate.SessionFactory;
public interface DynamicSessionFactoryInf extends SessionFactory {
public SessionFactory getHibernateSessionFactory();
}
3. DynamicSessionFactory 를 정의 하여 DynamicSessionFactory Inf 실현
public class DynamicSessionFactory implements DynamicSessionFactoryInf ,ApplicationContextAware{
private static final long serialVersionUID = 1L;
private ApplicationContext applicationContext;
// SessionFactory
private SessionFactory getHibernateSessionFactory(String name) {
return (SessionFactory) applicationContext.getBean(name);
}
// DynamicSessionFactoryInf
public SessionFactory getHibernateSessionFactory() {
return getHibernateSessionFactory(ThreadLocalUtil.getCurrentITAsset()
.getSessionFactoryName());
}
// SessionFactory ， SessionFactory
public Reference getReference() throws NamingException {
return getHibernateSessionFactory().getReference();
}
public Session openSession() throws HibernateException {
return getHibernateSessionFactory().openSession();
}
public Session openSession(Interceptor interceptor)
throws HibernateException {
return getHibernateSessionFactory().openSession(interceptor);
}
public Session openSession(Connection connection) {
return getHibernateSessionFactory().openSession(connection);
}
public Session openSession(Connection connection, Interceptor interceptor) {
return getHibernateSessionFactory().openSession(connection,interceptor);
}
public Session getCurrentSession() throws HibernateException {
return getHibernateSessionFactory().getCurrentSession();
}
public StatelessSession openStatelessSession() {
return getHibernateSessionFactory().openStatelessSession();
}
public StatelessSession openStatelessSession(Connection connection) {
return getHibernateSessionFactory().openStatelessSession(connection);
}
public ClassMetadata getClassMetadata(Class entityClass) {
return getHibernateSessionFactory().getClassMetadata(entityClass);
}
public ClassMetadata getClassMetadata(String entityName) {
return getHibernateSessionFactory().getClassMetadata(entityName);
}
public CollectionMetadata getCollectionMetadata(String roleName) {
return getHibernateSessionFactory().getCollectionMetadata(roleName);
}
public Map getAllClassMetadata() {
return getHibernateSessionFactory().getAllClassMetadata();
}
public Map getAllCollectionMetadata() {
return getHibernateSessionFactory().getAllCollectionMetadata();
}
public Statistics getStatistics() {
return getHibernateSessionFactory().getStatistics();
}
public void close() throws HibernateException {
getHibernateSessionFactory().close();
}
public boolean isClosed() {
return getHibernateSessionFactory().isClosed();
}
public Cache getCache() {
return getHibernateSessionFactory().getCache();
}
public void evict(Class persistentClass) throws HibernateException {
getHibernateSessionFactory().evict(persistentClass);
}
public void evict(Class persistentClass, Serializable id)
throws HibernateException {
getHibernateSessionFactory().evict(persistentClass, id);
}
public void evictEntity(String entityName) throws HibernateException {
getHibernateSessionFactory().evictEntity(entityName);
}
public void evictEntity(String entityName, Serializable id)
throws HibernateException {
getHibernateSessionFactory().evictEntity(entityName, id);
}
public void evictCollection(String roleName) throws HibernateException {
getHibernateSessionFactory().evictCollection(roleName);
}
public void evictCollection(String roleName, Serializable id)
throws HibernateException {
getHibernateSessionFactory().evictCollection(roleName, id);
}
public void evictQueries(String cacheRegion) throws HibernateException {
getHibernateSessionFactory().evictQueries(cacheRegion);
}
public void evictQueries() throws HibernateException {
getHibernateSessionFactory().evictQueries();
}
public Set getDefinedFilterNames() {
return getHibernateSessionFactory().getDefinedFilterNames();
}
public FilterDefinition getFilterDefinition(String filterName)
throws HibernateException {
return getHibernateSessionFactory().getFilterDefinition(filterName);
}
public boolean containsFetchProfileDefinition(String name) {
return getHibernateSessionFactory().containsFetchProfileDefinition(name);
}
@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}
}4. 동적 SessionFactory 설정
<bean id="sessionFactory" class="com.hp.it.qdpadmin.common.DynamicSessionFactory"/> 5. DynamicTransactionManager 계승 HibernateTransactionManager 정의
public class DynamicTransactionManager extends HibernateTransactionManager {
private static final long serialVersionUID = 1047039346475978451L;
// getDataSource ，
public DataSource getDataSource() {
DataSource sfds = SessionFactoryUtils.getDataSource(getSessionFactory());
return sfds;
}
// getSessionFactory ， SessionFactory
public SessionFactory getSessionFactory() {
DynamicSessionFactoryInf dynamicSessionFactory = (DynamicSessionFactoryInf) super
.getSessionFactory();
SessionFactory hibernateSessionFactory = dynamicSessionFactory
.getHibernateSessionFactory();
return hibernateSessionFactory;
}
// afterPropertiesSet，
public void afterPropertiesSet() {
return;
}
}6. dynamicTransactionManager 설정
<bean id="dynamicTransactionManager"
class="com.hp.it.qdpadmin.common.DynamicTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>7. Session Factory 를 위 한 트 랜 잭 션 절단면 설정
<tx:advice id="dynamicTxAdvice" transaction-manager="dynamicTransactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="find*" read-only="true" />
<tx:method name="*" propagation="REQUIRED" rollback-for="Exception" />
</tx:attributes>
</tx:advice>
<aop:config proxy-target-class="true">
<aop:pointcut id="txPointcut" expression="execution(* com.service.*.*(..))"/>
<aop:advisor advice-ref="dynamicTxAdvice" pointcut-ref="txPointcut" />
</aop:config> 이 내용에 흥미가 있습니까?
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