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https://issues.apache.org/jira/browse/JXPATH-93?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sergey Vladimirov reopened JXPATH-93:
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Doesn't work from trunk
> Binary operators behaviour involving node-sets is incorrect
> -----------------------------------------------------------
>
> Key: JXPATH-93
> URL: https://issues.apache.org/jira/browse/JXPATH-93
> Project: Commons JXPath
> Issue Type: Bug
> Affects Versions: 1.2 Final
> Environment: 1.2, SVN version
> Reporter: Sergey Vladimirov
> Fix For: 1.3
>
>
> According to XPath specification:
> "If both objects to be compared are node-sets, then the comparison will be
> true if and only if there is a node in the first node-set and a node in the
> second node-set such that the result of performing the comparison on the
> string-values of the two nodes is true. If one object to be compared is a
> node-set and the other is a number, then the comparison will be true if and
> only if there is a node in the node-set such that the result of performing
> the comparison on the number to be compared and on the result of converting
> the string-value of that node to a number using the number function is true."
> But following example illustrates, that this is not a JXPath behaviour:
> JXPathContext pathContext = JXPathContext
> .newContext(DocumentBuilderFactory.newInstance()
> .newDocumentBuilder().parse(
> new InputSource(new StringReader(
> "<?xml version=\"1.0\"
> encoding=\"UTF-8\"?>\r\n"
> + "<doc/>"))));
> Boolean result = (Boolean) pathContext.getValue("2.0 > child1",
> Boolean.class);
> assertFalse(result.booleanValue());
> "child1" is not found - right operand node set is empty, but result is TRUE,
> instead of FALSE.
> Please, check greaterThan(), lesserThan(), etc methods of
> org.apache.xpath.objects.XObject for possible solution :)
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