SlideAPI: setProperty does not add PropertyNode to ObjectNode

[Antonio Jean Claude]

Hello,

I'm trying to add properties (PropertyNode) to ObjectNodes by using the SlideAPI.
(See piece of code below).
I don't get any Exception, but no property is added? Am I missing something obvious?
I'm using Slide2.0.

Thanks in advance for your help,

JClaude


    public void setProperty(String uri, String propertyName, String propertyValue) 
throws Exception {
            try{
                token.begin();
                ObjectNode on = getStructure().retrieve(slideToken,uri);
                NodeRevisionDescriptors revisionDescriptors = 
content.retrieve(slideToken, uri);
                NodeRevisionDescriptor  revisionDescriptor = 
content.retrieve(slideToken, revisionDescriptors);
                revisionDescriptor.setProperty(propertyName, propertyValue);
                token.commit();
            }catch(Exception se){
                token.rollback();
                System.out.println(se);
            throw se;
            }
    }