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When type annotations are enabled and an XPath expression requires access to a typed value, if the value is not of the specified type, the expression stops its evaluation. This behavior is different from 3.9, where an untyped value would be returned instead.
Consider:
<xf:bind ref="is-soap" type="xs:boolean"/>
...
<xf:action if="is-soap = 'true'">
This will cause an XPath dynamic error, because 'true' is a string and XPath will atomize (get an atomic value) the content of the
is-soap node, which results in a boolean. Because there is no automatic conversion between the two, and error is raised and the action won't run. Instead, write:<xf:action if="is-soap = true()">
Or:
<xf:action if="data(is-soap)">
Or:
<xf:action if="string(is-soap) = 'true'">
This latter expression works whether type annotations are enabled or not.
Last modified 2yr ago