Package com.complexible.stardog.plan.filter.functions

Packaging containing the definition of a Function and all the built-in implementations for strings, dates, etc.

See: Description

Interface Summary

Interface	Description
Function	This is the extension point for 17.6 (Extensible Value Testing) of the SPARQL spec.

Class Summary

Class	Description
AbstractFunction	Abstract stub implementation of a Function.

Package com.complexible.stardog.plan.filter.functions Description

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