Groovy
Retrieve the first object (index [0]) among all objects attached to this page and class XWikiComments
com.xpn.xwiki.api.Object@3e912f02
Retrieve all objects attached to this page and of class XWikiComments
[com.xpn.xwiki.api.Object@42f211f3, com.xpn.xwiki.api.Object@22788adb, com.xpn.xwiki.api.Object@17e4418b, com.xpn.xwiki.api.Object@a8b18ee, com.xpn.xwiki.api.Object@3211b6aa, com.xpn.xwiki.api.Object@28ef6c94, com.xpn.xwiki.api.Object@7ec17d8a, com.xpn.xwiki.api.Object@51193009, com.xpn.xwiki.api.Object@4ca0c877]
Retrieve all objects attached to this page and of class XWikiComments and one of their properties
objsAuthors = doc.getObjects('XWiki.XWikiComments').author
objsAuthor = doc.getObjects('XWiki.XWikiComments')[2].author
println objs[0].author
println objsAuthors
println objsAuthor