예제 #1
0
 public override long GetCost()
 {
     return(scorer.GetCost());
 }
예제 #2
0
 public override long GetCost()
 {
     return(_parentScorer.GetCost());
 }
예제 #3
0
 public override long GetCost()
 {
     return(subQueryScorer.GetCost());
 }
 public override long GetCost()
 {
     return(_childScorer.GetCost());
 }
예제 #5
0
        public override bool Score(ICollector collector, int maxDoc)
        {
            if (maxDoc != int.MaxValue)
            {
                throw new ArgumentOutOfRangeException(nameof(maxDoc), "maxDoc must be System.Int32.MaxValue"); // LUCENENET specific - changed from IllegalArgumentException to ArgumentOutOfRangeException (.NET convention)
            }
            //if (DEBUG) {
            //  System.out.println("\nscore: reader=" + context.reader());
            //}
            //System.out.println("score r=" + context.reader());
            FakeScorer scorer = new FakeScorer(this);

            collector.SetScorer(scorer);
            if (drillDownCollector != null)
            {
                drillDownCollector.SetScorer(scorer);
                drillDownCollector.SetNextReader(context);
            }
            foreach (DocsAndCost dim in dims)
            {
                dim.sidewaysCollector.SetScorer(scorer);
                dim.sidewaysCollector.SetNextReader(context);
            }

            // TODO: if we ever allow null baseScorer ... it will
            // mean we DO score docs out of order ... hmm, or if we
            // change up the order of the conjuntions below
            if (Debugging.AssertsEnabled)
            {
                Debugging.Assert(baseScorer != null);
            }

            // some scorers, eg ReqExlScorer, can hit NPE if cost is called after nextDoc
            long baseQueryCost = baseScorer.GetCost();

            int numDims = dims.Length;

            long drillDownCost = 0;

            for (int dim = 0; dim < numDims; dim++)
            {
                DocIdSetIterator disi = dims[dim].disi;
                if (dims[dim].bits is null && disi != null)
                {
                    drillDownCost += disi.GetCost();
                }
            }

            long drillDownAdvancedCost = 0;

            if (numDims > 1 && dims[1].disi != null)
            {
                drillDownAdvancedCost = dims[1].disi.GetCost();
            }

            // Position all scorers to their first matching doc:
            baseScorer.NextDoc();
            int numBits = 0;

            foreach (DocsAndCost dim in dims)
            {
                if (dim.disi != null)
                {
                    dim.disi.NextDoc();
                }
                else if (dim.bits != null)
                {
                    numBits++;
                }
            }

            IBits[]      bits = new IBits[numBits];
            ICollector[] bitsSidewaysCollectors = new ICollector[numBits];

            DocIdSetIterator[] disis = new DocIdSetIterator[numDims - numBits];
            ICollector[]       sidewaysCollectors = new ICollector[numDims - numBits];
            int disiUpto = 0;
            int bitsUpto = 0;

            for (int dim = 0; dim < numDims; dim++)
            {
                DocIdSetIterator disi = dims[dim].disi;
                if (dims[dim].bits is null)
                {
                    disis[disiUpto] = disi;
                    sidewaysCollectors[disiUpto] = dims[dim].sidewaysCollector;
                    disiUpto++;
                }
                else
                {
                    bits[bitsUpto] = dims[dim].bits;
                    bitsSidewaysCollectors[bitsUpto] = dims[dim].sidewaysCollector;
                    bitsUpto++;
                }
            }

            /*
             * System.out.println("\nbaseDocID=" + baseScorer.docID() + " est=" + estBaseHitCount);
             * System.out.println("  maxDoc=" + context.reader().maxDoc());
             * System.out.println("  maxCost=" + maxCost);
             * System.out.println("  dims[0].freq=" + dims[0].freq);
             * if (numDims > 1) {
             * System.out.println("  dims[1].freq=" + dims[1].freq);
             * }
             */

            if (bitsUpto > 0 || scoreSubDocsAtOnce || baseQueryCost < drillDownCost / 10)
            {
                //System.out.println("queryFirst: baseScorer=" + baseScorer + " disis.length=" + disis.length + " bits.length=" + bits.length);
                DoQueryFirstScoring(collector, disis, sidewaysCollectors, bits, bitsSidewaysCollectors);
            }
            else if (numDims > 1 && (dims[1].disi is null || drillDownAdvancedCost < baseQueryCost / 10))
            {
                //System.out.println("drillDownAdvance");
                DoDrillDownAdvanceScoring(collector, disis, sidewaysCollectors);
            }