Package com.complexible.stardog.plan.filter.functions
package com.complexible.stardog.plan.filter.functions
Packaging containing the definition of a Function and all the built-in implementations for strings, dates, etc.
Primarily, the Function implementations correspond to some
defined XPath function, which is usually noted in the documentation for the function itself. There are a few which
are non-XPath functions which are specific to either the SPARQL specification or SWRL.
See XPathFunctions for an incomplete list of which XPath
functions are implemented in Stardog.
Functions available via FunctionRegistry can be used as
custom SPARQL functions at query time. See Function for
information on binding new implementations of Function at runtime.
Registration of the core Stardog Functions is performed by SPARQLFunctions
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ClassDescriptionAbstract stub implementation of a Function.This is the extension point for 17.6 (Extensible Value Testing) of the SPARQL spec.