Groovy
Retrieve the first object (index [0]) among all objects attached to this page and class XWikiComments
com.xpn.xwiki.api.Object@2e31eebf
Retrieve all objects attached to this page and of class XWikiComments
[com.xpn.xwiki.api.Object@9d31616, com.xpn.xwiki.api.Object@14f0364, com.xpn.xwiki.api.Object@6a679ae7, com.xpn.xwiki.api.Object@37eaea44, com.xpn.xwiki.api.Object@1fba330a, com.xpn.xwiki.api.Object@796ce5cb, com.xpn.xwiki.api.Object@5c62b0b4, com.xpn.xwiki.api.Object@533f28ce, com.xpn.xwiki.api.Object@57901714]
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