Package com.facebook.presto.block

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

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            sums.ensureCapacity(groupIdsBlock.getGroupCount());

            BlockCursor intermediateValues = block.cursor();

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

                long groupId = groupIdsBlock.getGroupId(position);

                Slice value = intermediateValues.getSlice();
                long count = value.getLong(0);
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                counts.add(groupId, count);

                double sum = value.getDouble(SIZE_OF_LONG);
                sums.add(groupId, sum);
            }
            checkState(!intermediateValues.advanceNextPosition());
        }

        @Override
        public void evaluateIntermediate(int groupId, BlockBuilder output)
        {
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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())) {
                    count++;
                    if (inputIsLong) {
                        sum += values.getLong();
                    }
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        protected void processIntermediate(Block block)
        {
            BlockCursor intermediates = block.cursor();

            for (int position = 0; position < block.getPositionCount(); position++) {
                checkState(intermediates.advanceNextPosition());
                Slice value = intermediates.getSlice();
                count += value.getLong(0);
                sum += value.getDouble(SIZE_OF_LONG);
            }
        }
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        int blockIndex = slices.size();
        slices.add(blockIndex, block.getSlice());
        slicesMemorySize += block.getSlice().length();
        BlockCursor cursor = block.cursor();
        for (int position = 0; position < block.getPositionCount(); position++) {
            checkState(cursor.advanceNextPosition());
            int offset = cursor.getRawOffset();

            long sliceAddress = encodeSyntheticAddress(blockIndex, offset);

            checkState((int) (sliceAddress >> 32) == blockIndex);
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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() && values.getBoolean() && (masks == null || masks.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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            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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                        }
                        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()) {
                    max = max(max, values.getSlice());
                }
            }
        }
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