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https://issues.apache.org/jira/browse/JXPATH-174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229201#comment-14229201
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Michele Vivoda commented on JXPATH-174:
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I changed some code I had and made a quick and dirty git hub project about this:
https://github.com/eleumik/jxpath_test_reference_table
the results tables are not really user friendly but is a start
2 observations:
-- [Test #48 |
http://eleumik.github.io/jxpath_test_reference_table/TestReferenceTableBean.html#T48]
- {{descendant-or-self::integer\[0\]}} returns the root, I believe should
return null, should probably fill a jira issue
-- [Test #85,#86,#87 |
eleumik.github.io/jxpath_test_reference_table/TestReferenceTableBean.html#T85]
- show that when selecting properties of a bean is like some 'place' is
reserved for properties that are null.. I personally didn't expected this ;-)
The [same tests on a map |
http://eleumik.github.io/jxpath_test_reference_table/TestReferenceTableMap.html#T85]
show results as expected. The tests use {{selectSingleNode}} but
{{selectNodes}} show same behavior and some items of the returned list are
null, there is a test about this {{test85_86_87_Bean_SelectMultipleNodes}}.
Should dig a little bit what happens for collections.
> Improve JXPath documentation
> ----------------------------
>
> Key: JXPATH-174
> URL: https://issues.apache.org/jira/browse/JXPATH-174
> Project: Commons JXPath
> Issue Type: Improvement
> Reporter: Michele Vivoda
> Priority: Minor
> Labels: documentation
> Fix For: 1.4
>
>
> I think a cause of issues with JXPath is in that the expected behavior in
> some cases is not easy to specify if not undefined, this happens because
> XPath was designed for XML and there is no specification for doing XPath on
> beans, maps or even collections as JXPath is able to perform.
> For example what is {{/}} ? what is {{/\*}} ? What is 'document order' ? What
> is {{text()}} ? Some questions are answered
> http://commons.apache.org/proper/commons-jxpath/users-guide.html#Document_Order
> but documentation is sparse.
> I think a table that summarizes what JXPath does at the moment would be handy
> and a way to improve user experience.
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