Adam Warski

4 Aug 2011

Using Envers with AS7


Recently I tried deploying a web application which uses Envers into AS7, but unfortunately I encountered some problems (see the forum discussion). Luckily thanks to the helpful JBoss guys I’ve got it working now. Moreover, thanks to the work done by Strong Liu, you should see full Envers integration (included OOTB as a module) in AS7.1!

Until then, here’s how to use Envers in a webapp in AS7.

First, we need to create an Envers module. Create a directory: jboss-as-7.0.0.Final/modules/org/hibernate/envers/main and inside it, create a module.xml with the following content:

<?xml version="1.0" encoding="UTF-8"?>
<module xmlns="urn:jboss:module:1.0" name="org.hibernate.envers">
    <resource-root path="hibernate-envers-4.0.0.Beta1.jar"/>

    <module name="org.hibernate"/>
    <module name="org.jboss.logging"/>
    <module name="org.dom4j"/>
    <module name="javax.api"/>
    <module name="javax.persistence.api"/>
    <module name="javax.transaction.api"/>
    <module name="org.javassist"/>

Moreover, you’ll need to put the Envers jar inside that directory. You can download it straight from the JBoss Maven repository.

I’ve prepared a ready zip of the module, which can be downloaded here. Just unpack its contents to jboss-as-7.0.0.Final/modules/org/hibernate.

Secondly, you must add an entry in your manifest file (META-INF/MANIFEST.MF) to make the new module available to your application:

Dependencies: org.hibernate.envers services

And you’re done. Enjoy! :)


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