How to get EventDefinitions for ResourceType via RHQ API

[bova]

Hello,

I would very appreciated if someone could help me with question: I need to load RHQ ResourceType and its EventDefinitions from RHQ using RHQ API

To load ResourceType I use

getResourceTypeManagerLocal().getResourceTypeById(<Subject>, <RHQ ResourceType ID>)  method and ResourceType is loaded successfully

but when I try to load EventDefinitions for ResourceType I always get null well as in rhq_event_def there are definitions for Resourcetype

My code is looks like

---

ResourceType rt = getResourceTypeManagerLocal().getResourceTypeById(subject, 10251);

Set<EventDefinition> newEventDefs = rt.getEventDefinitions();

---

and newEventDefs  is always = null

So, if there any way to retrieve EventDefinitions for chosen ResourceType via RHQ API?

[pilhuhn]

The snippet of your code you are showing looks good to me. In fact I am doing almost the same in the REST-Api's EventHandlerBean.addEventSource

The eventDefinitions are a 1:n relation on the ResourceType and are thus lazy loaded. In theory if no EntityManager is available you should get a lazy load exception.

In what context are you running that code?

Does the 'subject' have enough access rights?

[lkrejci]

As Heiko said, the Event definitions are lazy loaded, so for your code to work, you must not leave the transactional context of the EntityManager.

If for some reason you're not able to make that happen, you can try using the criteria queries:

ResourceTypeCriteria rtc = new ResourceTypeCriteria();

rtc.addFilterId(<ID>);

rtc.fetchEventDefinitions(true);

List<ResoureType> results = getResourceTypeManagerLocal().findResourceTypesByCriteria(<SUBJECT>, rtc);

[bova]

Lukas and Heiko, thanks a lot for this usefull answer

seems that key things here is rtc.fetchEventDefinitions(true);

because I tried this method early but without setting fetchEventDefinitions to true

Now it works - thank you !!!!!!