Examples of com.hp.hpl.jena.sparql.pfunction.PropFuncArg

Package com.hp.hpl.jena.sparql.pfunction

Examples of com.hp.hpl.jena.sparql.pfunction.PropFuncArg

com.hp.hpl.jena.sparql.pfunction.PropFuncArg
Class representing an argument (subject or object position) of a property function. Such an argument can be a graph node (variable, IRI, literal). Blank nodes from the query will be seen as variables. Most implementations will want to work with the property function arguments after substitution from the current binding.

    } ;
    
    static final private PropFuncArg readPropFuncArg(Item item)
    {
        if ( item.isNode() )
            return new PropFuncArg(BuilderNode.buildNode(item)) ;
        if ( item.isList() )
            return new PropFuncArg(BuilderNode.buildNodeList(item)) ;
        BuilderLib.broken(item, "Expected a property function argument (node or list of nodes") ;
        return null ;
    }

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        if ( propFuncArg.isNode() ) {
            Node n = propFuncArg.getArg() ;
            if ( ! Var.isVar(n) )
                // Not a Var, no substitute needed. 
                return propFuncArg ;
            return new PropFuncArg(substitute(propFuncArg.getArg(), binding)) ;
        }
        
        List<Node> newArgList = new ArrayList<Node>() ;
        for ( Node n : propFuncArg.getArgList() )
            newArgList.add(substitute(n, binding)) ;
        return new PropFuncArg(newArgList) ;
    }

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        }


        @Override
        public Op transform(OpPropFunc opPropFunc, Op subOp)
        {
            PropFuncArg sArgs = opPropFunc.getSubjectArgs() ;
            PropFuncArg oArgs = opPropFunc.getObjectArgs() ;
            
            PropFuncArg sArgs2 = substitute(sArgs, binding) ;
            PropFuncArg oArgs2 = substitute(oArgs, binding) ;
            
            if ( sArgs2 == sArgs && oArgs2 == oArgs && opPropFunc.getSubOp() == subOp)
                return super.transform(opPropFunc, subOp) ;
            return new OpPropFunc(opPropFunc.getProperty(), sArgs2, oArgs2, subOp) ; 
        }

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    } ;
    
    static final private PropFuncArg readPropFuncArg(Item item)
    {
        if ( item.isNode() )
            return new PropFuncArg(BuilderNode.buildNode(item)) ;
        if ( item.isList() )
            return new PropFuncArg(BuilderNode.buildNodeList(item)) ;
        BuilderLib.broken(item, "Expected a property function argument (node or list of nodes") ;
        return null ;
    }

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    } ;
    
    static final private PropFuncArg readPropFuncArg(Item item)
    {
        if ( item.isNode() )
            return new PropFuncArg(BuilderNode.buildNode(item)) ;
        if ( item.isList() )
            return new PropFuncArg(BuilderNode.buildNodeList(item)) ;
        BuilderLib.broken(item, "Expected a property function argument (node or list of nodes") ;
        return null ;
    }

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            // If memberNode is defined, find lists containing it.
            x = GraphList.listFromMember(new GNode(execCxt.getActiveGraph(), memberNode)) ;
        else    
            // Hard. Subject unbound, no fixed member. Find every list and use BFI.
            x = GraphList.findAllLists(execCxt.getActiveGraph()) ;
        return super.allLists(binding, x, listVar, predicate, new PropFuncArg(objectArgs, null), execCxt) ;
    }

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        {
            oList = GraphList.members(oGNode) ;
            GraphList.allTriples(oGNode, listTriples) ;
        }
        
        PropFuncArg subjArgs = new PropFuncArg(sList, pfTriple.getSubject()) ;
        PropFuncArg objArgs =  new PropFuncArg(oList, pfTriple.getObject()) ;
        
        // Confuses single arg with a list of one. 
        PropertyFunctionInstance pfi = new PropertyFunctionInstance(subjArgs, pfTriple.getPredicate(), objArgs) ;
        
        triples.getList().removeAll(listTriples) ;

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    } ;
    
    static final private PropFuncArg readPropFuncArg(Item item)
    {
        if ( item.isNode() )
            return new PropFuncArg(BuilderNode.buildNode(item)) ;
        if ( item.isList() )
            return new PropFuncArg(BuilderNode.buildNodeList(item)) ;
        BuilderLib.broken(item, "Expected a property function argument (node or list of nodes") ;
        return null ;
    }

View Full Code Here

        if ( propFuncArg.isNode() ) {
            Node n = propFuncArg.getArg() ;
            if ( ! Var.isVar(n) )
                // Not a Var, no substitute needed. 
                return propFuncArg ;
            return new PropFuncArg(substitute(propFuncArg.getArg(), binding)) ;
        }
        
        List<Node> newArgList = new ArrayList<>() ;
        for ( Node n : propFuncArg.getArgList() )
            newArgList.add(substitute(n, binding)) ;
        return new PropFuncArg(newArgList) ;
    }

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        }


        @Override
        public Op transform(OpPropFunc opPropFunc, Op subOp)
        {
            PropFuncArg sArgs = opPropFunc.getSubjectArgs() ;
            PropFuncArg oArgs = opPropFunc.getObjectArgs() ;
            
            PropFuncArg sArgs2 = substitute(sArgs, binding) ;
            PropFuncArg oArgs2 = substitute(oArgs, binding) ;
            
            if ( sArgs2 == sArgs && oArgs2 == oArgs && opPropFunc.getSubOp() == subOp)
                return super.transform(opPropFunc, subOp) ;
            return new OpPropFunc(opPropFunc.getProperty(), sArgs2, oArgs2, subOp) ; 
        }

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