Groovy
Retrieve the first object (index [0]) among all objects attached to this page and class XWikiComments
com.xpn.xwiki.api.Object@2e65b24f
Retrieve all objects attached to this page and of class XWikiComments
[com.xpn.xwiki.api.Object@db5f0f1, com.xpn.xwiki.api.Object@23dd653f, com.xpn.xwiki.api.Object@1c221d7e, com.xpn.xwiki.api.Object@3be49a0, com.xpn.xwiki.api.Object@41d3a94b, com.xpn.xwiki.api.Object@2f0f9cb0, com.xpn.xwiki.api.Object@29f7fef3, com.xpn.xwiki.api.Object@5883190b, com.xpn.xwiki.api.Object@6e14e93]
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