Groovy - permissions query

Hi All... again! Looks like I need to use groovy for a few xwiki tools; but I just need to confirm permissions. If I understand correctly, you need programming rights to run a groovy script - does this mean all users that are viewing or modifying a page in xwiki with groovy scripts involved require programming rights? For eg: A class has a groovy script in it to compare dates (eg "is it before or after when xyz said it would be done"). This is setup at the ClassSheet level. -> On creating a document linked to that classt; will the user be able to run the groovy script attached to the ClassSheet linked to the document?