Re: [Xdoclet-user] hibernatecfg

[Kevin Hagel]

Spring takes care of that for me.  I only want hibernatecfg because it 
puts the mapping files together for me in one place, without my having 
to maintain that list.  Springs LocalSessionFactoryBean uses the JNDI to 
get the datasource, which I do Not specify in the hibernate.cfg.xml .. I 
can specify the dialect and some connection business.

I use a context.xml in Tomcat (for this development) that specifies my 
datasource.

I use a separate hibernate configuration properties file for the 
SchemaExportTask because it can't deal with JNDI, or at least I haven't 
felt like doing it that way.

A fragment of my applicationContext-hibernate.xml from my spring 
configuration:

   <bean id="dataSource" 
class="org.springframework.jndi.JndiObjectFactoryBean">
       <property 
name="jndiName"><value>java:comp/env/jdbc/hageldb</value></property>
   </bean>

   <!--
     - Our Hibernate SessionFactory.
    -->
   <bean id="sessionFactory" 
class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
       <property name="dataSource"><ref local="dataSource"/></property>
       <property name="configLocation">
           <value>/WEB-INF/hibernate.cfg.xml</value>
       </property>
   </bean>

I only recently started writing my own XDoclet tasks, I'm using a 
template to generate interfaces for example.  Spring likes things that 
are done with interfaces.  I didn't understand that XJavadoc would find 
the .hbm.xml files ...
       <!-- mapping files -->
       <XDtHibernate:forAllPersistentClasses>
       <mapping 
resource="<XDtPackage:packageNameAsPath/>/<XDtClass:className/>.hbm.xml"/>
       </XDtHibernate:forAllPersistentClasses>

Brian Topping wrote:

 

-----Original Message-----
From: Konstantin Priblouda [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 23, 2004 5:23 AM
To: [EMAIL PROTECTED]
Subject: Re: [Xdoclet-user] hibernatecfg


--- Kevin Hagel <[EMAIL PROTECTED]> wrote:
   

I'm using hibernatecfg, a subtask in CVS head
version of xdoclet.  Seems 
to work, I particularly like it being able to find
the mapping files 
without my having to specify each.  Mostly for
springframework 
applicationContext.xml stuff.
I don't see it mentioned on the xdoclet.sourceforge
website though.  Is 
this just an experiment, can I count on it being
there tomorrow?
     

it's not an experiment. but it's mostly not  needed. 
( this CFG file is trivial, and done per hand faster
than generated. ) 
   

The goal of the hibernatecfg task was to give a transparent entry point for
generating the inline configuration for Hibernate.  Since putting it together
and running it in production, I can attest that it's needed and important and
will be maintained in future XDoclet versions, but note that configuring
Hibernate in this manner is only usable in a development environment.  If you
try to configure hibernate like this in production, you will find your
database to be unreachable after a few days of use.  This is why there is the
option to use the JNDI factory.
So the correct use of this subtask is to use the local factory during
development, which automagically adds new classes in the build to the runtime
configuration, as you add them, but before deploying to production, flip over
to the JNDI factory and use that in production (for instance with the JBoss
SAR task).  This gives you rapid turnaround on adding or deleting entity
classes, no worries about updating the pesky config file when you are
thinking about something else, and transparency when you are ready to deploy.
 

And new upcoming xdoclet-2 plugin does not feature
this
configuration creation
   

It's not in there yet, if/when anyone needs it, add a task to JIRA with my
name on it and I'll get to it sometime soon...
best,

-b

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