List of advanceNextPosition() Examples

Examples of advanceNextPosition()

com.facebook.presto.block.BlockCursor.advanceNextPosition()
Attempts to advance to the next position in this stream.
com.facebook.presto.operator.JoinProbe.advanceNextPosition()
com.facebook.presto.operator.index.UnloadedIndexKeyRecordSet.UnloadedIndexKeyRecordCursor.advanceNextPosition()
com.facebook.presto.spi.RecordCursor.advanceNextPosition()
com.facebook.presto.spi.block.BlockCursor.advanceNextPosition()
Attempts to advance to the next position in this stream.

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

        protected void processIntermediate(Block block)
        {
            BlockCursor values = block.cursor();


            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());


                if (!values.isNull()) {
                    Slice slice = values.getSlice();
                    long inputCount = getCount(slice);
                    double inputMean = getMean(slice);

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

                        currentMean = newMean;
                        currentM2 = newM2;
                    }
                }
            }
            checkState(!values.advanceNextPosition());
        }


        @Override
        public void evaluateIntermediate(BlockBuilder output)
        {

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()


        @Override
        public void addIntermediate(Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");


            for (int i = 0; i < page.getChannelCount(); i++) {

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

        public Block evaluateFinal()
        {
            DescriptiveStatistics statistics = new DescriptiveStatistics();
            for (int i = 0; i < accumulators.size(); i++) {
                BlockCursor cursor = accumulators.get(i).evaluateFinal().cursor();
                checkArgument(cursor.advanceNextPosition(), "accumulator returned no results");
                statistics.addValue(getNumeric(cursor));
            }


            BlockBuilder builder = new BlockBuilder(SINGLE_VARBINARY);
            builder.append(formatApproximateOutput(statistics, confidence));

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()


        @Override
        public void addIntermediate(GroupByIdBlock groupIdsBlock, Block block)
        {
            BlockCursor cursor = block.cursor();
            checkArgument(cursor.advanceNextPosition());
            SliceInput sliceInput = new BasicSliceInput(cursor.getSlice());
            Page page = Iterators.getOnlyElement(PagesSerde.readPages(sliceInput));
            checkArgument(page.getChannelCount() == accumulators.size(), "number of blocks does not match accumulators");


            for (int i = 0; i < page.getChannelCount(); i++) {

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

            DescriptiveStatistics statistics = new DescriptiveStatistics();
            for (int i = 0; i < accumulators.size(); i++) {
                BlockBuilder builder = new BlockBuilder(accumulators.get(i).getFinalTupleInfo());
                accumulators.get(i).evaluateFinal(groupId, builder);
                BlockCursor cursor = builder.build().cursor();
                checkArgument(cursor.advanceNextPosition(), "accumulator returned no results");
                statistics.addValue(getNumeric(cursor));
            }


            output.append(formatApproximateOutput(statistics, confidence));
        }

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()


            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = SimpleAggregationFunction.computeSampleWeight(masks, sampleWeights);


                long groupId = groupIdsBlock.getGroupId(position);


                // skip null values

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

            digests.ensureCapacity(groupIdsBlock.getGroupCount());


            BlockCursor intermediates = block.cursor();


            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());


                if (!intermediates.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);


                    DigestAndPercentile currentValue = digests.get(groupId);

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()


            for (int position = 0; position < page.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());
                checkState(sampleWeights == null || sampleWeights.advanceNextPosition());
                long sampleWeight = SimpleAggregationFunction.computeSampleWeight(masks, sampleWeights);


                if (!values.isNull() && sampleWeight > 0) {
                    addValue(digest, values, parameterType, sampleWeight);

View Full Code Here

Examples of com.facebook.presto.block.BlockCursor.advanceNextPosition()

            checkArgument(valueChannel == -1, "Intermediate input is only allowed for a final aggregation");


            BlockCursor intermediates = block.cursor();


            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                if (!intermediates.isNull()) {
                    SliceInput input = intermediates.getSlice().getInput();
                    // read digest
                    digest.merge(QuantileDigest.deserialize(input));
                    // read percentile

View Full Code Here

0 1 2 3 4 5

TOP

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.