Package com.facebook.presto.block

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

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            }
            else {
                BlockCursor cursor = page.getBlock(maskChannel.get()).cursor();
                for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    cursor.advanceNextPosition();
                    if (cursor.getBoolean()) {
                        counts.increment(groupId);
                    }
                }
            }
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            counts.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor intermediates = block.cursor();

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

                long groupId = groupIdsBlock.getGroupId(position);
                counts.add(groupId, intermediates.getLong());
            }
        }
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            if (!maskChannel.isPresent()) {
                count += page.getPositionCount();
            }
            else {
                BlockCursor masks = page.getBlock(maskChannel.get()).cursor();
                while (masks.advanceNextPosition()) {
                    if (masks.getBoolean()) {
                        count++;
                    }
                }
            }
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        public void addIntermediate(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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            minValues.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor values = valuesBlock.cursor();

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

                // skip null values
                if (!values.isNull()) {
                    long groupId = groupIdsBlock.getGroupId(position);
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                        }
                        sizeOfValues += value.length();
                    }
                }
            }
            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()) {
                    min = min(min, values.getSlice());
                }
            }
        }
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            for (int position = 0; position < groupIdsBlock.getPositionCount(); position++) {
                checkState(values.advanceNextPosition());
                checkState(weights.advanceNextPosition());
                checkState(percentiles.advanceNextPosition());
                checkState(masks == null || masks.advanceNextPosition());

                long groupId = groupIdsBlock.getGroupId(position);

                // skip null values
                if (!values.isNull() && !weights.isNull() && (masks == null || masks.getBoolean())) {
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            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);
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                masks = maskBlock.get().cursor();
            }

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

                if (!values.isNull() && (masks == null || masks.getBoolean())) {
                    double inputValue;
                    if (inputIsLong) {
                        inputValue = values.getLong();
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