Hi,
I have an Enterprise model and I'd like to register a listener on that model to do some afterUpdate oprerations.

I tried defining the portal.properties in liferay-hook.xml of my portlet, and I've added the value.object.listener.com.acq.portlet.enterprise.model.Enterprise = com.acq.portlet.enterprise.model.EnterpriseListener to each of WEB-INF/src/portal.properties, WEB-INF/src/system.properties, WEB-INF/src/portal-ext.properties without success.

The clossest I got was a hotDeployException where the bean com.acq.portlet.enterprise.service.persistence.EnterprisePersistence could not be found. This seems to point to a classLoader problem where the Listener is being registered by the ROOT classLoader and not MyPortlet classLoader.

I even tryied using the following in my enterpriseLocalServiceImpl , but to no avail.


Does anyone have an idea on how to register a listener on a custom model ?

cheers.

Hi Charles,

Does Enterprise model you developed is developed using plugins portlet OR ext?

Which version of Liferay you are using?

Regards,
- Nagendra Kumar

Hi,

Try creating the listener in portlet itself. You can declare the listener for ur custom model in portlet.properties of your portlet, as you do in hook.

Regards,
Sandeep

The Enterprise model was developed using plugins portlet on Liferay 6.0.5.

The Listener was created in the portlet (com.acq.portlet.enterprise.model.impl.EnterpriseListener) and declared in portlet.properties , but for some reason it never got registered

and

Hi Charles,

The approach suggested by Sandeep will do needful.

Run you server in debug mode, try to debug to check whether the control is going to method you are looking for according to operation (CRUD) you are performing.

Regards,
- Nagendra Kumar

Hmm Strange,

Can you please check using debug in the method called afterPropertiesSet in your ModelPersitenceImpl class(in your case EnterprisePersistenceImpl) what is the value of listenerClassNames

Regards,
Sandeep

Hi,
I finally succeded in registerring my custom listener.

There were 2 problems:

The first is related to bug LPS-10988 where the my listener impl class was not found. The workaround in the bug description solved my problem.

The second problem was that the value.object.listener was suppose to go into my portlet's system.properties and that was constantly overridden by the SDK. The solution can be found here



Thanks for all your help and I hope this will help other people.

cheers.

The easiest solution of this issue is to just modify your bean's persistenceImpl class's method name afterPropertiesSet: -

/**
* Initializes the MyBean persistence.
*/
public void afterPropertiesSet() {
String[] listenerClassNames = StringUtil.split(GetterUtil.getString(
com.liferay.portal.kernel.util.PropsUtil.get(
"value.object.listener.com.test.model.MyBean")));


if (listenerClassNames.length > 0) {
try {
List<ModelListener<MyBean>> listenersList = new ArrayList<ModelListener<MyBean>>();
for (String listenerClassName : listenerClassNames) {
listenersList.add((ModelListener<MyBean>)InstanceFactory.newInstance(PortletClassLoaderUtil.getClassLoader(), listenerClassName, (Class<?>[])null, (Object[])null));

}

listeners = listenersList.toArray(new ModelListener[listenersList.size()]);
}
catch (Exception e) {
_log.error(e);
}
}
}

For completely fixed this issue just change the liferay.src\portal-impl\src\com\liferay\portal\tools\servicebuilder\dependencies\persistence_impl.ftl: -

/**
* Initializes the ${entity.humanName} persistence.
*/
public void afterPropertiesSet() {
String[] listenerClassNames = StringUtil.split(GetterUtil.getString(${propsUtil}.get("value.object.listener.${packagePath}.model.${entity.name}")));

if (listenerClassNames.length > 0) {
try {
List<ModelListener<${entity.name}>> listenersList = new ArrayList<ModelListener<${entity.name}>>();

for (String listenerClassName : listenerClassNames) {
listenersList.add((ModelListener<${entity.name}>)InstanceFactory.newInstance(PortletClassLoaderUtil.getClassLoader(), listenerClassName, (Class<?>[])null, (Object[])null));
}

listeners = listenersList.toArray(new ModelListener[listenersList.size()]);
}
catch (Exception e) {
_log.error(e);
}
}

Cheers and happy coding............