package org.jrest4guice.persistence.hibernate;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import com.google.inject.Singleton;
/**
*
* @author <a href="mailto:zhangyouqun@gmail.com">cnoss (QQ:86895156)</a>
*
*/
@Singleton
public class SessionFactoryHolder {
private SessionFactory sessionFactory;
private final ThreadLocal<SessionInfo> session = new ThreadLocal<SessionInfo>();
public SessionFactoryHolder() {
try {
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
} catch (Exception e) {
throw new RuntimeException("初始化 SessionFactoryHolder 失败",e);
}
}
public SessionFactory getSessionFactory() {
return this.sessionFactory;
}
public SessionInfo getSessionInfo() {
SessionInfo s = this.session.get();
// 如果不存在，则创建一个新的
if (s == null) {
s = new SessionInfo(getSessionFactory().openSession());
this.session.set(s);
}
return s;
}
public void closeSession() {
SessionInfo s = this.session.get();
if (s != null) {
try {
if (s.getSession().isOpen())
s.getSession().close();
} finally {
this.session.remove();
}
}
}
}