Using JCS in Hibernate

xinxin2
Hi all,

I have a question about the JCS, since I haven't used it before, I don't know how it works.

We have a table in our database, and its data rarely changes, so it is good for caching. I tried to put to my .hbm.xml file, but I don't know how to test it to make sure its data is from cache not from database?

Thanks a lot!

yehs220 2003-09-12 09:02
设置hibernate.show_sql true
如果出现SQL语句，则说明是从数据库取得，
没有则是从CACHE（或者只是查询出id）
xinxin2 2003-09-12 22:26
Thank you yehs220 for replying.

I tried what you said, but it always show me the SQL statements, so that means the data is from database? I did use in my .hbm.xml, I do not know what is wong with it? If you have a chance, could you take a look,

P.S, someone told me to turn on log4j.logger.net.sf.hibernate.cache=debug, I also tried this, it showed me something like "Cache new", don't know if the cache has been used.

Here is my .hbm.xml file

***********

"-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">












************

Here is the code I load the object:
************

public void listAlias() throws HibernateException
{
Session session = sessionFactory.openSession();

Iterator iter = session.iterate("from com.hibernate.Alias as alias");

while (iter.hasNext())
{
Alias myAlias = (Alias) iter.next();
System.out.println("-------client is----" + myAlias.getClient());
System.out.println("-------subclient is----" + myAlias.getSub_client());
session.evict(myAlias);
}

session.close();
}

************

Main()


hiberTest.listAlias();

hiberTest.listAlias();


Thanks for helping!
xinxin2 2003-09-13 01:26
I found if I use session.load(.....), it will hit the cache, I don't know why iterator does not work here? anybody knows?

Thanks