Examples of QueryIterConcat

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
 
  public Graph description() {
    if (executed) return result;
    executed = true;

    final QueryIterConcat qIter = new QueryIterConcat(context);
    Pingback<?> pingback = null;
    if (timeout > 0) {
      pingback = AlarmClock.get().add(new Callback<Object>() {
        public void proc(Object ignore) {
          qIter.cancel();
        }
      }, timeout);
    }
   
    FindQuery outgoing = new FindQuery(
        Triple.create(node, Node.ANY, Node.ANY),
        mapping.compiledPropertyBridges(), limit, context);
    qIter.add(outgoing.iterator());
   
    if (!onlyOutgoing) {
      FindQuery incoming = new FindQuery(
          Triple.create(Node.ANY, Node.ANY, node),
          mapping.compiledPropertyBridges(), limit, context);
      qIter.add(incoming.iterator());
 
      FindQuery triples = new FindQuery(
          Triple.create(Node.ANY, node, Node.ANY),
          mapping.compiledPropertyBridges(), limit, context);
      qIter.add(triples.iterator());
    }
    result.getBulkUpdateHandler().add(TripleQueryIter.create(qIter));
   
    if (pingback != null) {
      AlarmClock.get().cancel(pingback);
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
    }
    return result;
  }
 
  public QueryIter iterator() {
    QueryIterConcat qIter = new QueryIterConcat(context);
    for (CompatibleRelationGroup group:
        CompatibleRelationGroup.groupNodeRelations(selectedTripleRelations())) {
      if (!group.baseRelation().equals(Relation.EMPTY) && group.baseRelation().limit()!=0) {
        qIter.add(QueryIterTableSQL.create(
            group.baseRelation(), group.bindingMakers(), context));
      }
    }
    return qIter;
  }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
  @Override
  public QueryIterator eval(QueryIterator input, final ExecutionContext execCxt) {
    return new QueryIterRepeatApply(input, execCxt) {
      @Override
      protected QueryIterator nextStage(Binding binding) {
        QueryIterConcat resultIt = new QueryIterConcat(execCxt);
        Collection<NodeRelation> tables = new ArrayList<NodeRelation>();
        for (OpTableSQL tableOp: tableOps) {
          tables.add(tableOp.table().extendWith(binding));
        }
        for (CompatibleRelationGroup group: CompatibleRelationGroup.groupNodeRelations(tables)) {
          resultIt.add(QueryIterTableSQL.create(group.baseRelation(), group.bindingMakers(), execCxt));
        }
        return resultIt;
      }
    };
  }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
    // Brute force evaluation of a TriplePath where neither subject nor object are bound
    private static QueryIterator ungroundedPath(Binding binding, Graph graph, Var sVar, Path path, Var oVar,
                                                ExecutionContext execCxt)
    {
        Iterator<Node> iter = GraphUtils.allNodes(graph) ;
        QueryIterConcat qIterCat = new QueryIterConcat(execCxt) ;
       
        for ( ; iter.hasNext() ; )
        {
            Node n = iter.next() ;
            Binding b2 = BindingFactory.binding(binding, sVar, n) ;
            Iterator<Node> pathIter = PathEval.eval(graph, n, path) ;
            QueryIterator qIter = _execTriplePath(b2, pathIter, oVar, execCxt) ;
            qIterCat.add(qIter) ;
        }
        return qIterCat ;
    }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

58
59
60
61
62
63
64
65
66
67
    @Override
    public QueryIterator execEvaluated(Binding binding, Node containerNode, Node predicate, Node member, ExecutionContext execCxt)
    {
        QueryIterator qIter1 = execEvaluatedConcrete(binding, containerNode, predicate, member, execCxt) ;
        QueryIterator qIter2 = execEvaluatedCalc(binding, containerNode, predicate, member, execCxt) ;
        QueryIterConcat concat = new QueryIterConcat(execCxt) ;
        concat.add(qIter1) ;
        concat.add(qIter2) ;
        return concat ;
    }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
        if ( member.isVariable() )
            c = findContainers(graph, typeNode) ;
        else
            c = findContainingContainers(graph, typeNode, member) ;
       
        QueryIterConcat cIter = new QueryIterConcat(execCxt) ;
        Var cVar = Var.alloc(containerNode) ;
        for ( Iterator<Node> iter = c.iterator() ; iter.hasNext() ; )
        {
            Node cn = iter.next() ;
            //Binding the container node.
            Binding b = BindingFactory.binding(binding, cVar, cn) ;
            Node m = member ;
            // Special case of ?x rdfs:member ?x
            if ( Var.isVar(member) && member.equals(cVar) )
                m = cn ;
           
            cIter.add(oneContainer(b, cn, m, execCxt)) ;
        }
        return cIter ;
        //throw new QueryFatalException(Utils.className(this)+": Arg 1 is too hard : "+containerNode) ;
    }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
        else
        {
            // Variable.
            Var gVar = Var.alloc(opQuad.getGraphNode()) ;
            // Or just just devolve to OpGraph and get OpUnion chain of OpJoin
            QueryIterConcat concat = new QueryIterConcat(cxt) ;
            for ( Iterator<Node> graphNodes = cxt.getDataset().listGraphNodes() ; graphNodes.hasNext(); )
            {
                Node gn = graphNodes.next() ;
                //Op tableVarURI = TableFactory.create(gn.getName(), Node.createURI(uri)) ;
               
                Graph g = cxt.getDataset().getGraph(gn) ;
                Binding b = BindingFactory.binding(BindingRoot.create(), gVar, gn) ;
                ExecutionContext cxt2 = new ExecutionContext(cxt, g) ;

                // Eval the pattern, eval the variable, join.
                // Pattern may be non-linear in the variable - do a pure execution. 
                Table t1 = TableFactory.create(gVar, gn) ;
                QueryIterator qIter = StageBuilder.execute(pattern, QueryIterRoot.create(cxt2), cxt2) ;
                Table t2 = TableFactory.create(qIter) ;
                Table t3 = evaluator.join(t1, t2) ;
                concat.add(t3.iterator(cxt2)) ;
            }
            return TableFactory.create(concat) ;
        }
    }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
    }

    @Override
    protected QueryIterator nextStage(Binding binding)
    {
        QueryIterConcat unionQIter = new QueryIterConcat(getExecContext()) ;
        for (Op subOp : subOps)
        {
            subOp = QC.substitute(subOp, binding) ;
            QueryIterator parent = QueryIterSingleton.create(binding, getExecContext()) ;
            QueryIterator qIter = QC.execute(subOp, parent, getExecContext()) ;
            unionQIter.add(qIter) ;
        }
       
        return unionQIter ;
    }
View Full Code Here

Examples of com.hp.hpl.jena.sparql.engine.iterator.QueryIterConcat

98
99
100
101
102
103
104
105
106
107
108
109
110
111
    }

    protected QueryIterator allLists(Binding binding, Collection<Node> x, Var listVar, Node predicate, PropFuncArg argObject, ExecutionContext execCxt)
    {
        // BFI: Find all lists; work hard.
        QueryIterConcat qIter = new QueryIterConcat(execCxt) ;
        for ( Node n : x )
        {
            Binding b = BindingFactory.binding(binding, listVar, n) ;
            QueryIterator q = execOneList(b, n, predicate, argObject, execCxt) ;
            qIter.add(q) ;
        }
        return qIter ;
    }
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.