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From "Stefan Guggisberg (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-789) PathElement.equals doesn't handle INDEX_UNDEFINED
Date Fri, 30 Mar 2007 09:32:25 GMT

    [ https://issues.apache.org/jira/browse/JCR-789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12485453
] 

Stefan Guggisberg commented on JCR-789:
---------------------------------------

Marcel wrote:
> IMO the INDEX_UNDEFINED only makes sense in context of an XPath query. If a path element
does not have an index in XPath then all same named nodes are selected regardless of what
index they have. Whereas in the JCR API Node.getNode("foo") and Node.getNode("foo[1]") is
the same.
> 
> I think the crucial question is: does the spec says anywhere an 1-index needs to preserved
in a path?

you're right, it doesn't. 

the original idea behind INDEX_UNDEFINED was to distinguish an implicit "[1]" subscript from
an explicit "[1]".
i.e.  to preserve e.g. the following string representation: "/foo[1]/bar". it's not required
by the spec and whether 
that's useful feature or not is another question. 

personally i am not particularly attached to INDEX_UNDEFINED, i wouldn't be opposed to removing
it.

> PathElement.equals doesn't handle INDEX_UNDEFINED
> -------------------------------------------------
>
>                 Key: JCR-789
>                 URL: https://issues.apache.org/jira/browse/JCR-789
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: core
>            Reporter: Julian Reschke
>            Priority: Minor
>         Attachments: jcr789.diff.txt
>
>
> PathElement (and therefore Path) comparisons fail when INDEX_UNDEFINED is used (it's
treated differently from INDEX_DEFAULT).

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