Package com.hp.hpl.jena.sparql.engine

Examples of com.hp.hpl.jena.sparql.engine.ExecutionContext

257
258
259
260
261
262
263
264
    }
   
    private static List<Binding> eval(Graph graph, Node start, String pathStr, Node finish)
    {
        Path path = SSE.parsePath(pathStr, pmap) ;
        QueryIterator qIter = PathLib.execTriplePath(BindingFactory.root(), start, path, finish, new ExecutionContext(ARQ.getContext(), graph, null, null)) ;
        return Iter.toList(qIter) ;
    }
View Full Code Here
256
257
258
259
260
261
262
263
264
265
266
267
        // -- Execute
        // Switch to a non-reordering executor
        // The Op may be a sequence due to TransformFilterPlacement
        // so we need to do a full execution step, not go straight to the SolverLib.
       
        ExecutionContext ec2 = new ExecutionContext(execCxt) ;
        ec2.setExecutor(plainFactory) ;

        // Solve without going through this executor again.
        // There would be issues of nested patterns but this is only a
        // (filter (bgp...)) or (filter (quadpattern ...)) or sequences of these.
        // so there are no nested patterns to reorder.
View Full Code Here
252
253
254
255
256
257
258
259
260
   
    public static NodeValue eval(Expr expr, Binding binding)
    {
        Context context = ARQ.getContext().copy() ;
        context.set(ARQConstants.sysCurrentTime, NodeFactory.nowAsDateTime()) ;
        FunctionEnv env = new ExecutionContext(context, null, null, null) ;
        NodeValue r = expr.eval(binding, env) ;
        return r ;
    }
View Full Code Here
188
189
190
191
192
193
194
195
196
197
198
                    }
                    else
                    {
                        // Default action
                        ARQ.getContext().set(ARQConstants.sysCurrentTime, NodeFactory.nowAsDateTime()) ;
                        FunctionEnv env = new ExecutionContext(ARQ.getContext(), null, null, null) ;
                        NodeValue r = expr.eval(null, env) ;
                        //System.out.println(r.asQuotedString()) ;
                        Node n = r.asNode() ;
                        String s = FmtUtils.stringForNode(n) ;
                        System.out.println(s) ;
View Full Code Here
308
309
310
311
312
313
314
315
316
317
318
        // This is a placeholder for code to specially handle explicitly named
        // default graph and union graph.
       
        if ( Quad.isDefaultGraph(gn) )
        {
            ExecutionContext cxt2 = new ExecutionContext(execCxt, execCxt.getDataset().getDefaultGraph()) ;
            return execute(subOp, input, cxt2) ;
        }
       
        if ( true ) return null ;
       
View Full Code Here
188
189
190
191
192
193
194
195
196
197
198
                    }
                    else
                    {
                        // Default action
                        ARQ.getContext().set(ARQConstants.sysCurrentTime, NodeFactoryExtra.nowAsDateTime()) ;
                        FunctionEnv env = new ExecutionContext(ARQ.getContext(), null, null, null) ;
                        NodeValue r = expr.eval(null, env) ;
                        //System.out.println(r.asQuotedString()) ;
                        Node n = r.asNode() ;
                        String s = NodeFmtLib.displayStr(n) ;
                        System.out.println(s) ;
View Full Code Here
158
159
160
161
162
163
164
165
166
167
168
    private QueryIterator specialcase(Node gn, Op subOp, QueryIterator input) {
        // This is a placeholder for code to specially handle explicitly named
        // default graph and union graph.

        if (Quad.isDefaultGraph(gn)) {
            ExecutionContext cxt2 = new ExecutionContext(execCxt, execCxt.getDataset().getDefaultGraph()) ;
            return execute(subOp, input, cxt2) ;
        }

        if ( Quad.isUnionGraph(gn) )
            Log.warn(this, "Not implemented yet: union default graph in general OpExecutor") ;
View Full Code Here
254
255
256
257
258
259
260
261
262
263
264
265
        // -- Execute
        // Switch to a non-reordering executor
        // The Op may be a sequence due to TransformFilterPlacement
        // so we need to do a full execution step, not go straight to the SolverLib.
       
        ExecutionContext ec2 = new ExecutionContext(execCxt) ;
        ec2.setExecutor(plainFactory) ;

        // Solve without going through this executor again.
        // There would be issues of nested patterns but this is only a
        // (filter (bgp...)) or (filter (quadpattern ...)) or sequences of these.
        // so there are no nested patterns to reorder.
View Full Code Here
152
153
154
155
156
157
158
159
160
161
162
        // This is a placeholder for code to specially handle explicitly named
        // default graph and union graph.
       
        if ( Quad.isDefaultGraph(gn) )
        {
            ExecutionContext cxt2 = new ExecutionContext(execCxt, execCxt.getDataset().getDefaultGraph()) ;
            return execute(subOp, input, cxt2) ;
        }
       
        if ( gn == Quad.unionGraph )
            Log.warn(this, "Not implemented yet: union default graph in general OpExecutor") ;
View Full Code Here
254
255
256
257
258
259
260
261
262
263
264
265
        // -- Execute
        // Switch to a non-reordering executor
        // The Op may be a sequence due to TransformFilterPlacement
        // so we need to do a full execution step, not go straight to the SolverLib.
       
        ExecutionContext ec2 = new ExecutionContext(execCxt) ;
        ec2.setExecutor(plainFactory) ;

        // Solve without going through this executor again.
        // There would be issues of nested patterns but this is only a
        // (filter (bgp...)) or (filter (quadpattern ...)) or sequences of these.
        // so there are no nested patterns to reorder.
View Full Code Here
TOP

Related Classes of com.hp.hpl.jena.sparql.engine.ExecutionContext

  • arq.qexpr
  • com.hp.hpl.jena.sdb.engine.QueryEngineSDB
  • com.hp.hpl.jena.sdb.store.TupleTable
  • com.hp.hpl.jena.sparql.engine.iterator.TestQueryIterSort
  • com.hp.hpl.jena.sparql.engine.main.iterator.QueryIterGraph$QueryIterGraphInner
  • com.hp.hpl.jena.sparql.engine.main.OpExecutor
  • com.hp.hpl.jena.sparql.engine.main.QueryEngineMain
  • com.hp.hpl.jena.sparql.engine.ref.Eval
  • com.hp.hpl.jena.sparql.engine.ref.QueryEngineRef
  • com.hp.hpl.jena.sparql.engine.TestTableLib
    • Copyright © 2018 www.massapicom. 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.