Sun GlassFish Enterprise Server 2.1 Application Deployment Guide

Example

<schema-generator-properties>
   <property>
	     <name>Employee.firstName.jdbc-type</name>
	     <value>char</value>
   </property>
   <property>
	     <name>Employee.firstName.jdbc-maximum-length</name>
	     <value>25</value>
   </property>
   <property>
	     <name>use-unique-table-names</name>
	     <value>true</value>
   </property>
</schema-generator-properties>