Module org.apache.jena.arq

Package org.apache.jena.sparql.pfunction

Class PropertyFunctionEval

java.lang.Object

org.apache.jena.sparql.pfunction.PropertyFunctionBase

org.apache.jena.sparql.pfunction.PropertyFunctionEval

All Implemented Interfaces:

PropertyFunction

Direct Known Subclasses:

ListBase, PFuncListAndList, PFuncListAndSimple, PFuncSimple, PFuncSimpleAndList, splitIRI

public abstract class PropertyFunctionEval
extends PropertyFunctionBase

Basic property function handler that calls the implementation subclass one binding at a time after evaluating the arguments (if bound).

Method Summary

Modifier and Type	Method	Description
final QueryIterator	exec(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
abstract QueryIterator	execEvaluated(Binding binding, PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)

Methods inherited from class org.apache.jena.sparql.pfunction.PropertyFunctionBase

build, exec

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

exec

public final QueryIterator exec(Binding binding,
 PropFuncArg argSubject,
 Node predicate,
 PropFuncArg argObject,
 ExecutionContext execCxt)

Specified by:

exec in class PropertyFunctionBase

execEvaluated

public abstract QueryIterator execEvaluated(Binding binding,
 PropFuncArg argSubject,
 Node predicate,
 PropFuncArg argObject,
 ExecutionContext execCxt)

Parameters:

binding - Current solution from previous query stage

argSubject - PropFuncArg, after substitution of any bound variables in this binding

predicate - This predicate

argObject - PropFuncArg, after substitution of any bound variables in this binding

execCxt - Execution context

Returns:

QueryIterator