How to get another web app's SessionFactory?

Yashnoo · **Joined:** Wed Dec 17, 2003 4:24 am **Posts:** 188

Hi everyone:

Could I get a sessionfactory of another webapp's? (I use Tomcat5) I have two web applications,WebApp1 and WebApp2. They use hibernate but using different databases. Webapp1 use hibernate1.cfg.xml as the following:

Code:

<session-factory>
......................................................................
      <property name="connection.driver_class">org.gjt.mm.mysql.Driver</property>
      <property name="connection.url">jdbc:mysql://192.168.1.17:3306/user</property>
............................................................................

webapp2 use hibernate2.cfg.xml in another application:

Code:

<session-factory>
......................................................................
      <property name="connection.driver_class">com.oracle.jdbc.OracleDriver</property>
      <property name="connection.url">jdbc:oracle@thin:192.168.1.17:3306/user</property>
............................................................................

Now , I want to operate the sessionfactory1 in webapp2
How to do it? I mean that it is possible to get the sessionfactory1 in webapp2? I　want to bind the sessionfactory1 to jndi tree,then how to get the sessionfactory1 in my second webapp2?
Thks!

LaLiLuna · **Posted:** Tue Jan 31, 2006 3:25 am

Hello,

you can bind them to JNDI and retrieve them form there.
I think in the Wiki there are information about JNDI binding.

Regards Sebastian

Yashnoo · **Joined:** Wed Dec 17, 2003 4:24 am **Posts:** 188

LaLiLuna wrote:

Hello,

you can bind them to JNDI and retrieve them form there.
I think in the Wiki there are information about JNDI binding.

Regards Sebastian

I know how to build the sessionFactory to local webapp's jndi tree,and I could get the sessionfactory from local web context(jndi tree). But how to get another webapp's jndi handler? I mean that how to get webapp1's jndi object from webapp2's context? Could I do this by this way:?

Code:

Context webapp2Context= new InitialContext(); 
sessionFactory = 
(SessionFactory) webapp2Context.lookup("webapp1/jndi/HibernateSessionFactory"); 

Could I get the jndi tree cross Tomcat context?
But it seems don't work. Have you try it before? Thks!

sai-brian · **Joined:** Wed Feb 01, 2006 10:22 am **Posts:** 6

there are multiple scopes in Tomcat's JNDI tree (IIRC). There are app specific resources, and there are global resources. Global resources are available for lookup by all apps. Did you try making both session factories available in the global context? This should allow you to look up both of them from either app.

Yashnoo · **Joined:** Wed Dec 17, 2003 4:24 am **Posts:** 188

sai-brian wrote:

there are multiple scopes in Tomcat's JNDI tree (IIRC). There are app specific resources, and there are global resources. Global resources are available for lookup by all apps. Did you try making both session factories available in the global context? This should allow you to look up both of them from either app.

But how to make the webapp1's session factories available in the global context? It is binded to webapp1's context already. Is there any easy method to bind it to the tomcat 's global resources? I don't find any docs about how to bind object to global context, because as I know,tomcat's context is ready-only, how do you bind any object to it? Thks

LaLiLuna · **Posted:** Thu Feb 02, 2006 5:05 am

did you try to google?
I am not sure but this may help.
http://www.hibernate.org/114.html?cmd=c ... stnode=896
You should consider to rate if or postings helped.

Regards Sebastian