org.provarules.reference2.builtins

Class ProvaSparqlQueryImpl

java.lang.Object

org.provarules.reference2.builtins.ProvaBuiltinImpl

org.provarules.reference2.builtins.ProvaSparqlQueryImpl

All Implemented Interfaces:

ProvaBuiltin, ProvaPredicate

Direct Known Subclasses:

ProvaSparqlAskImpl, ProvaSparqlSelectImpl

public abstract class ProvaSparqlQueryImpl
extends ProvaBuiltinImpl

Abstract sparql query base class.
This class provides the generic SPARQL query functionality, such as resolving the Connection term and creating the `QueryID` identifier.

Author:

Malte Rohde

Field Summary

Fields inherited from class org.provarules.reference2.builtins.ProvaBuiltinImpl

kb

Method Summary

Modifier and Type	Method and Description
int	getArity()
boolean	process(ProvaReagent prova, ProvaDerivationNode node, ProvaGoal goal, java.util.List<ProvaLiteral> newLiterals, ProvaRule query)
protected abstract boolean	processQuery(ProvaPredicate pred, ProvaConstant cqid, org.eclipse.rdf4j.repository.RepositoryConnection con, java.lang.String sparql_query)

Methods inherited from class org.provarules.reference2.builtins.ProvaBuiltinImpl

addClause, addClauseA, equals, getClauseSet, getKnowledgeBase, getSymbol, process_, setKnowledgeBase

Methods inherited from class java.lang.Object

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

Method Detail

getArity

public int getArity()

Specified by:

getArity in interface ProvaPredicate

Overrides:

getArity in class ProvaBuiltinImpl

process

public boolean process(ProvaReagent prova,
                       ProvaDerivationNode node,
                       ProvaGoal goal,
                       java.util.List<ProvaLiteral> newLiterals,
                       ProvaRule query)

Specified by:

process in interface ProvaBuiltin

Specified by:

process in class ProvaBuiltinImpl

processQuery

protected abstract boolean processQuery(ProvaPredicate pred,
                                        ProvaConstant cqid,
                                        org.eclipse.rdf4j.repository.RepositoryConnection con,
                                        java.lang.String sparql_query)