pre-persist not firing

[John Armstrong]

This is really basic but I am a bit sick and am just not finding my
answer (thats my excuse, sick..)

In my map I have this (generated via M5 Modeler):

        <obj-entity name="Company" className="com.printgate.model.Company"
dbEntityName="COMPANY">
                <obj-attribute name="companyid" type="java.lang.String"
db-attribute-path="COMPANYID"/>
                <obj-attribute name="isactive" type="boolean" 
db-attribute-path="ISACTIVE"/>
                <pre-persist method-name="generateCompanyID"/>
        </obj-entity>

In my com.printgate.model.Company object I have this method:

        public void generateCompanyID(){
                System.out.println("In generate");
        }

I call it like this :

        public BigTest(){
                context = DataContext.createDataContext();
                theCompany = (Company) 
context.newObject(com.printgate.model.Company.class);
                context.commitChanges();
        }

The object is created in the datastore but my pre-persist never fires.

This is M5. I also rolled back to M4 with the same problem so I am
sure its something obvious,

Thanks
John-