criteria is not null but jsObj is null

[levi]

Hi,

Context: on a datasource, I am checking the request for a criteria to filter on field "id". If no filter given, I just fetch everything.


executeFetch(String requestId, DSRequest request, DSResponse response)

I was trying a simple request.getCriteria().getAttribute("id");
but this gives me a nullpointer somewhere.
This happens in the case when no filter is given, and therefore no criteria has been given (any).

After some searching I found this to be true:
request.getCriteria() != null
request.getCriteria().getJsObj() == null

[DEBUG] Uncaught exception
com.google.gwt.core.client.JavaScriptException:
(TypeError): 'null' is null or not an object
 number: -2146823281
 description: 'null' is null or not an object
    at com.smartgwt.client.util.JSOHelper.getAttribute(Native Method)
    at com.smartgwt.client.core.DataClass.getAttribute(DataClass.java:51)

Can someone explain why the Criteria is not null, but its javaScriptObject is?
Or do I have to live with it and always check (in java) the javaScriptObject and not the java object?

[sjivan]

I checked in a change to that null is returned when getCriteria() is called and there is no filter criteria.

Sanjiv

[levi]

Great, thanks Sanjiv.