`444546474849505152535455` ```        public static boolean isomorphicQuads(List quads1, List quads2, NodeIsomorphismMap isoMap) {         if ( quads1.size() != quads2.size() )             return false ;         for ( int i = 0 ; i < quads1.size() ; i++ ) {             Quad q1 = quads1.get(i) ;             Quad q2 = quads2.get(i) ;             if ( ! quadIso(q1, q2, isoMap))                 return false ;         }         return true ;     } ```
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 `99100101102103104105106107108109` ```        if ( p == Node.ANY ) p = null ;         if ( o == Node.ANY ) o = null ;         for ( int i = start ; i < size() ; i++ )         {             Quad q = get(i) ;             if ( matchOne(g,s,p,o,q) )                 return i ;         }         return -1 ;     } ```
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 `176177178179180181182183184185` ```        @Override         public boolean hasNext() { return iter.hasNext() ; }                 @Override         public Triple next() {             Quad q = iter.next();             if ( graphNode != null && ! q.getGraph().equals(graphNode))                 throw new InternalError("ProjectQuadsToTriples: Quads from unexpected graph (expected="+graphNode+", got="+q.getGraph()+")") ;             return q.asTriple() ;         } ```
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 `145146147148149150151` ```        {             oVar = Var.alloc("o") ;             o = oVar ;         }                 return new Quad(graphNode, s, p ,o) ;     } ```
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 `8384858687888990919293949596979899100101102103104105106107` ```    {         QuadBlock tableQuads = new QuadBlock() ;         Set predicates = new HashSet(cols.keySet()) ;         // Use the fact that i'th quad is the trigger          Quad trigger = quadBlock.get(i) ;         Node subject = trigger.getSubject() ;         Node graph = trigger.getGraph() ;                 for ( Node p : predicates )         {             int idx = quadBlock.findFirst(i, graph, subject, p, null) ;             if ( idx < 0 )                 // No match.                 // Conservative - must find all predicates                 //return null ;                 // Liberal - any predicates                 continue ;                         Quad q = quadBlock.get(idx) ;             tableQuads.add(q) ;         }                 quadBlock.removeAll(tableQuads) ;         SqlStagePatternTable stage = new SqlStagePatternTable(graph, subject, tableQuads) ; ```
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 `153154155156157158159160161162163164165166167168` ```                        continue ;                         //log.error("Can't find quad in SqlStagePTable.build") ;                         //throw new SDBException("SqlStagePTable.build") ;                     }                                         Quad q = tableQuads.remove(idx) ;                                         String colName = cols.get(pred) ;                     SqlColumn col = new SqlColumn(sqlTable, colName) ;                                         Node obj = q.getObject() ;     //                if ( Var.isVar(obj) )     //                    sqlTable.setIdColumnForVar(Var.alloc(obj), col) ;                                         slotCompiler.processSlot(request, sqlTable, conditions, obj, colName) ;                 } ```
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 `162163164165166167168169170171172` ```    }     private static List> tuplesQuads(Iterator iter) {         List> tuples = new ArrayList>() ;         for ( ; iter.hasNext() ; ) {             Quad q = iter.next() ;             Tuple tuple = Tuple.create(q.getGraph(), q.getSubject(), q.getPredicate(), q.getObject()) ;             tuples.add(tuple) ;         }         return tuples ;     } ```
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 `258259260261262263264265` ```        Node graph = getCurrentGraph() ;         if ( graph == Quad.defaultGraphNodeGenerated )             graph = Quad.tripleInQuad ;         Quad quad = profile.createQuad(graph, subject, predicate, object, currLine, currCol) ;         dest.quad(quad) ;     } ```
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 `6061626364656667686970` ```                @Override                 public Quad convert(Quad quad)                 {                     if ( ! quad.isDefaultGraph() ) return quad ;                                         return new Quad(dftGraph, quad.getSubject(), quad.getPredicate(), quad.getObject()) ;                 }             };             quads = Iter.map(quads, nt) ;         }         return quads; ```
 `111112113114115116117118119120121122` ```                bNodeMap.clear() ;                 List quadList = new ArrayList(quads.size());                 for (Quad quad : quads)                 {                     Quad q = subst(quad, b, bNodeMap) ;                     if ( ! q.isConcrete() )                     {                         //Log.warn(TemplateLib.class, "Unbound quad: "+FmtUtils.stringForQuad(quad)) ;                         continue ;                     }                     quadList.add(q); ```