Exemplo n.º 1
0
        public Int32 Compare(SortKey x, SortKey y)
        {
#if DEBUG
            System.Diagnostics.Debug.WriteLine("Comparing >>>>");
            x.Dump();
            y.Dump();
#endif
            int result = 0;
            for (Int32 i = 0; i < x.NumKeyParts; i++)
            {
                result = ((IComparer)_comparers[i]).Compare(x[i], y[i]);
                if (result != 0)
                {
                    break;
                }
            }

#if DEBUG
            System.Diagnostics.Debug.WriteLine("result = " + result.ToString());
            System.Diagnostics.Debug.WriteLine("");
#endif
            // if after all comparisions, the two sort keys are still equal,
            // preserve the doc order
            return((result == 0) ? -1 : result);
        }
Exemplo n.º 2
0
        public int Compare(SortKey x, SortKey y)
        {
            int result = 0;

            for (int i = 0; i < x.NumKeys; i++)
            {
                result = this.comparers[i].Compare(x[i], y[i]);
                if (result != 0)
                {
                    return(result);
                }
            }

            Debug.Assert(result == 0);

            // if after all comparisions, the two sort keys are still equal,
            // preserve the doc order
            return(x.OriginalPosition - y.OriginalPosition);
        }
Exemplo n.º 3
0
        private void BuildResultsList()
        {
            Int32 numSorts = this.comparer.NumSorts;

            Debug.Assert(numSorts > 0, "Why was the sort query created?");

            XPathNavigator eNext;

            while ((eNext = _qyInput.advance()) != null)
            {
                SortKey key = new SortKey(numSorts, /*originalPosition:*/ this.results.Count, eNext.Clone());

                for (Int32 j = 0; j < numSorts; j++)
                {
                    object keyval = this.comparer.Expression(j).getValue(_qyInput);
                    key[j] = keyval;
                }

                results.Add(key);
            }
            results.Sort(this.comparer);
        }
Exemplo n.º 4
0
        private void BuildResultsList()
        {
            XPathNavigator eNext;
            SortKey        key;
            Int32          numSorts = _sortExpressions.Count;

            System.Diagnostics.Debug.Assert(numSorts > 0, "Why was the sort query created?");

            while (true)
            {
                eNext = _qyInput.advance();

                if (eNext == null)
                {
                    break;
                }

                // if this is the first time i.e., the cache is empty
                // and if we an xslt context to work with

                /* if (_ResultCount == 0 && _context != null)
                 *   for (Int32 i=0; i<numSorts; i++)
                 *       ((IQuery)_sortExpressions[i]).SetXsltContext(_context);*/

                // create the special object that represent the composite key
                // This key object will act as a container for the primary key value,
                // secondary key value etc.
                key = new SortKey(numSorts);

                for (Int32 j = 0; j < numSorts; j++)
                {
                    object keyval = ((IQuery)_sortExpressions[j]).getValue(_qyInput);
                    key.SetKeyValue(keyval, j);
                }

                _Results.Add(key, eNext.Clone());
                _ResultCount++;
            }
        }