Пример #1
0
        public override object Execute(IContextProvider provider, object[] args, MemoryPool pool)
        {
            XQueryNodeIterator res = (XQueryNodeIterator)pool.GetData(_cache);
            if (res != null)
                return res.Clone();
#if PF
            PerfMonitor.Global.Begin(this);
#endif
            XQueryNodeIterator rootIter = 
                XQueryNodeIterator.Create(_path[0].Execute(provider, args, pool)).CreateBufferedIterator();
            bool orderedSet = _isOrderedSet && rootIter.IsSingleIterator;
            res = new ResultIterator(this, provider, orderedSet, !orderedSet & QueryContext.EnableHPC, rootIter, args, pool);
            if (EnableCaching)
            {
                res = res.CreateBufferedIterator();
                pool.SetData(_cache, res.Clone());
            }
#if PF
            PerfMonitor.Global.End(this);
#endif
            return res;
        }