Package com.facebook.presto.block

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

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            counts.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();

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

                if (!values.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    counts.add(groupId, values.getLong());
                }
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                if (!values.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    counts.add(groupId, values.getLong());
                }
            }
            checkState(!values.advanceNextPosition());
        }

        @Override
        public void evaluateFinal(int groupId, BlockBuilder output)
        {
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                mask = maskBlock.get().cursor();
            }

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(mask == null || mask.advanceNextPosition());
                if (!values.isNull() && (mask == null || mask.getBoolean())) {
                    count++;
                }
            }
        }
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        protected void processIntermediate(Block block)
        {
            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                count += intermediates.getLong();
            }
        }

        @Override
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            for (int position = 0; position < page.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(weights.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());

                if (!values.isNull() && !weights.isNull() && (masks == null || masks.getBoolean())) {
                    addValue(digest, values, weights.getLong(), parameterType);

                    // use last non-null percentile
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            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
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            maxValues.ensureCapacity(groupIdsBlock.getGroupCount(), Double.NEGATIVE_INFINITY);

            BlockCursor values = valuesBlock.cursor();

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

                long groupId = groupIdsBlock.getGroupId(position);

                if (!values.isNull()) {
                    notNull.set(groupId, true);
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                    double value = values.getDouble();
                    value = Math.max(value, maxValues.get(groupId));
                    maxValues.set(groupId, value);
                }
            }
            checkState(!values.advanceNextPosition());
        }

        @Override
        public void evaluateFinal(int groupId, BlockBuilder output)
        {
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        protected void processInput(Block block, Optional<Block> maskBlock)
        {
            BlockCursor values = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                if (!values.isNull()) {
                    notNull = true;
                    max = Math.max(max, values.getDouble());
                }
            }
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                masks = maskBlock.get().cursor();
            }

            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());

                long groupId = groupIdsBlock.getGroupId(position);

                if (!values.isNull() && (masks == null || masks.getBoolean())) {
                    counts.increment(groupId);
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