How to determine that a property is required?

[ddelapasse]

When we define aspects/properties there's a mandatory attribute we can assign.  When using the CMIS/Alfresco api I'm traversing folder content so I have ObjectInFolderData type objects.  I can get their property values fine, but how can I find out if the property is mandatory?

[ddelapasse]

Answering my own question:  Apparently Alfresco is kind enough to apply a special aspect to objects that exist, but have missing required properties.  The aspect is P:sys:incomplete.

Answer found here: http://forums.alfresco.com/forum/developer-discussions/alfresco-api/cmis-does-not-seem-care-about-ma...