Package com.facebook.presto.block

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

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            maxValues.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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        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;

                    // if value is true, update the max to true
                    if (values.getBoolean()) {
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                masks = maskBlock.get().cursor();
            }

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

                if (!values.isNull() && (masks == null || masks.getBoolean())) {
                    long groupId = groupIdsBlock.getGroupId(position);
                    double inputValue;
                    if (inputIsLong) {
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            m2s.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);

                    Slice slice = values.getSlice();
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                    counts.set(groupId, newCount);
                    means.set(groupId, newMean);
                    m2s.set(groupId, newM2);
                }
            }
            checkState(!values.advanceNextPosition());
        }

        @Override
        public void evaluateIntermediate(int groupId, BlockBuilder output)
        {
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            maxValues.ensureCapacity(groupIdsBlock.getGroupCount(), Long.MIN_VALUE);

            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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                    long value = values.getLong();
                    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.getLong());
                }
            }
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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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                            minValues.set(groupId, TRUE_VALUE);
                        }
                    }
                }
            }
            checkState(!values.advanceNextPosition());
        }

        @Override
        public void evaluateFinal(int groupId, BlockBuilder output)
        {
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