Package org.apache.jena.sparql.pfunction.library

Class strSplit

java.lang.Object

org.apache.jena.sparql.pfunction.PropertyFunctionBase

org.apache.jena.sparql.pfunction.PropertyFunctionEval

org.apache.jena.sparql.pfunction.PFuncSimpleAndList

org.apache.jena.sparql.pfunction.library.strSplit

All Implemented Interfaces:

PropertyFunction

public class strSplit
extends PFuncSimpleAndList

Property function that requires the object to contain a list of two items, the first of which is a string to be split, and the second is a regular expression denoting the split point. If the subject is an unbound variable, it is bound for each result of the split, and each result has the whitespace trimmed from it. If the subject is not an unbound variable, then the property function will match if and only if the subject is one of the split results.

Constructor Summary

Constructors

Constructor	Description
strSplit()

Method Summary

Modifier and Type	Method	Description
void	build(PropFuncArg argSubject, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)	Called during query plan construction immediately after the construction of the property function instance.
QueryIterator	execEvaluated(Binding binding, Node subject, Node predicate, PropFuncArg object, ExecutionContext execCxt)

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

execEvaluated

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

exec

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

exec

Methods inherited from class java.lang.Object

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

Constructor Detail

strSplit

public strSplit()

Method Detail

build

public void build(PropFuncArg argSubject,
                  Node predicate,
                  PropFuncArg argObject,
                  ExecutionContext execCxt)

Description copied from interface: PropertyFunction

Called during query plan construction immediately after the construction of the property function instance.

Specified by:

build in interface PropertyFunction

Overrides:

build in class PropertyFunctionBase

Parameters:

argSubject - The parsed argument(s) in the subject position

predicate - The extension URI (as a Node).

argObject - The parsed argument(s) in the object position

execCxt - Execution context

execEvaluated

public QueryIterator execEvaluated(Binding binding,
                                   Node subject,
                                   Node predicate,
                                   PropFuncArg object,
                                   ExecutionContext execCxt)

Specified by:

execEvaluated in class PFuncSimpleAndList

Parameters:

binding - Current solution from previous query stage

subject - Node in subject slot, after substitution if a bound variable in this binding

predicate - This predicate

object - List in object slot, after substitution of any bound variables in this binding

execCxt - Execution context

Returns:

QueryIterator