cardinality
Returns whether an XPath expression returns zero, one or more than one node
Function Summary |
minimal arguments |
Boolean cardinality (XPath expression , String cardinality)
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all arguments |
Boolean cardinality (XPath expression , String cardinality)
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Required Arguments |
XPath expression
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an XPath expression that returns some number of nodes |
String cardinality
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Contains any combination of the characters '0', '1' and 'M'. |
There are no optional arguments
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Example |
cardinality(/root/plugin , "1M")
returns true if there are one or more child elements named "plugin" under the top-level node named "root", or false otherwise.
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