Groovy
Retrieve the first object (index [0]) among all objects attached to this page and class XWikiComments
com.xpn.xwiki.api.Object@191d9b6b
Retrieve all objects attached to this page and of class XWikiComments
[com.xpn.xwiki.api.Object@775d7968, com.xpn.xwiki.api.Object@19cdd811, com.xpn.xwiki.api.Object@19245153, com.xpn.xwiki.api.Object@1f572d0a, com.xpn.xwiki.api.Object@144dfb99, com.xpn.xwiki.api.Object@bc10439, com.xpn.xwiki.api.Object@2cfc4036, com.xpn.xwiki.api.Object@64dbb04c, com.xpn.xwiki.api.Object@1313814f]
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