Groovy
Retrieve the first object (index [0]) among all objects attached to this page and class XWikiComments
com.xpn.xwiki.api.Object@4cf607d9
Retrieve all objects attached to this page and of class XWikiComments
[com.xpn.xwiki.api.Object@3b314955, com.xpn.xwiki.api.Object@20c589cf, com.xpn.xwiki.api.Object@8da85d8, com.xpn.xwiki.api.Object@42892c72, com.xpn.xwiki.api.Object@3bc5127e, com.xpn.xwiki.api.Object@7412cda, com.xpn.xwiki.api.Object@47e79fee, com.xpn.xwiki.api.Object@37b4e723, com.xpn.xwiki.api.Object@45b2c767]
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