Class PalindromeFunction
java.lang.Object
org.eclipse.rdf4j.examples.function.PalindromeFunction
-
Field Summary
-
Constructor Summary
-
Method Summary
Modifier and TypeMethodDescriptionevaluate
(ValueFactory valueFactory, Value... args) Evaluate the function over the supplied input arguments, using the suppliedValueFactory
to produce the result.evaluate
(TripleSource tripleSource, Value... args) Executes the palindrome function.getURI()
return the URI 'http://example.org/custom-function/palindrome' as a StringMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.eclipse.rdf4j.query.algebra.evaluation.function.Function
mustReturnDifferentResult
-
Field Details
-
NAMESPACE
- See Also:
-
-
Constructor Details
-
PalindromeFunction
public PalindromeFunction()
-
-
Method Details
-
getURI
-
evaluate
Executes the palindrome function.- Specified by:
evaluate
in interfaceFunction
- Parameters:
tripleSource
- theTripleSource
used in the query evaluation. This can be used to access the current state of the store.args
- the function input arguments.- Returns:
- A boolean literal representing true if the input argument is a palindrome, false otherwise.
- Throws:
ValueExprEvaluationException
- if more than one argument is supplied or if the supplied argument is not a literal.
-
evaluate
Description copied from interface:Function
Evaluate the function over the supplied input arguments, using the suppliedValueFactory
to produce the result.- Specified by:
evaluate
in interfaceFunction
- Parameters:
valueFactory
- aValueFactory
to use for producing the function result.args
- the function input arguments.- Returns:
- the function result value.
- Throws:
ValueExprEvaluationException
-