I'm using hbm2java to generate some code from my hbm definitions.

I've written a custom freemarker template, however I need to call some java code and return the value to the template. Think of it as calling a string manipulation library from freemarker. I know this is possible since cfg2JavaTool allows it. I am using the hibernate3-maven-plugin.

How would I add a class of my own to the freemarker template model?

Sorry I'm not quite following you. Using the hibernate3-maven-plugin I assume I can set the classpath up by setting the classpath as so (ignoring my other plugin details):

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>hibernate3-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<componentProperties>
<classpath>someClassPath</classpath>
<myPropName>someString</myPropName>
</componentProperties>
</configuration>
</plugin>

But how would I then reference my class in side the freemarker template? ${com.mypackage.Class} doesn't seem to work.

I know I can access myPropName in my template. Is it possible to make myPropName a class/instance reference instead?

After digging in the Hibernate Tool source code I found what I needed to do:

<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>hibernate3-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<componentProperties>
<classpath>someClassPath</classpath>
<hibernatetool.myPropName.toolclass>com.myPackage.myClass</hibernatetool.myPropName.toolclass>
</componentProperties>
</configuration>
</plugin>

The prefix "hibernatetool." and suffix ".toolclass" are identifiers to tell the AbstractExporter class to create an instance out of the FQCN. I couldn't see this documented anywhere after a few days of searching, which is rather frustrating.

So now I can use {$myPropName.someInstanceMethod()} to return the value from my class.

Matt.Lloyd101, this is documented here
http://docs.jboss.org/tools/2.1.0.Beta1 ... ml#d0e3308