Package com.facebook.presto.block

Examples of com.facebook.presto.block.BlockBuilder.build()

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                        // todo there is no need to eval for intermediates since buffer is already in block form
                        BlockBuilder blockBuilder = new BlockBuilder(aggregator.getTupleInfo());
                        for (int position = 0; position < pagePositionCount; position++) {
                            aggregator.evaluate(currentPosition + position, blockBuilder);
                        }
                        blocks[channel] = blockBuilder.build();
                    }

                    Page page = new Page(blocks);
                    currentPosition += pagePositionCount;
                    return page;
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                        throw new UnsupportedOperationException("not yet implemented");
                }
            }
        }

        return blockBuilder.build();
    }

    private List<Object> createRandomSample(int uniques, int total)
    {
        Preconditions.checkArgument(uniques <= total, "uniques (%s) must be <= total (%s)", uniques, total);
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    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_DOUBLE);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append((double) i);
        }
        return blockBuilder.build();
    }

    @Override
    public AggregationFunction getFunction()
    {
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    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_LONG);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append(i);
        }
        return blockBuilder.build();
    }

    @Override
    public AggregationFunction getFunction()
    {
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            }
            Block[] sourceBlocks = page.getBlocks();
            Block[] outputBlocks = new Block[sourceBlocks.length + 1]; // +1 for the single boolean output channel

            System.arraycopy(sourceBlocks, 0, outputBlocks, 0, sourceBlocks.length);
            outputBlocks[sourceBlocks.length] = blockBuilder.build();

            maskedPages[i] = new Page(outputBlocks);
        }

        return maskedPages;
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            partialAggregation.addInput(createGroupByIdBlock(0, page.getPositionCount()), page);
        }

        BlockBuilder partialOut = new BlockBuilder(partialAggregation.getIntermediateTupleInfo());
        partialAggregation.evaluateIntermediate(0, partialOut);
        UncompressedBlock partialBlock = partialOut.build();

        GroupedAccumulator finalAggregation = function.createGroupedIntermediateAggregation(confidence);
        finalAggregation.addIntermediate(createGroupByIdBlock(0, partialBlock.getPositionCount()), partialBlock);

        return getGroupValue(finalAggregation, 0);
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        BlockBuilder blockBuilder = new BlockBuilder(TupleInfo.SINGLE_LONG);
        for (int i = 0; i < positions; i++) {
            blockBuilder.append(groupId);
        }
        return new GroupByIdBlock(groupId, blockBuilder.build());
    }

    private static int[] createArgs(AggregationFunction function)
    {
        int[] args = new int[function.getParameterTypes().size()];
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    private static Object getGroupValue(GroupedAccumulator groupedAggregation, int groupId)
    {
        BlockBuilder out = new BlockBuilder(groupedAggregation.getFinalTupleInfo());
        groupedAggregation.evaluateFinal(groupId, out);
        return BlockAssertions.getOnlyValue(out.build());
    }
}
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                    throw new AssertionError("Can only handle longs and doubles");
                }
            }
            Accumulator accumulator = getFunction().createAggregation(Optional.<Integer>absent(), Optional.<Integer>absent(), getConfidence(), 0);

            accumulator.addInput(new Page(builder.build()));
            Block result = accumulator.evaluateFinal();

            String approxValue = BlockAssertions.toValues(result).get(0).toString();
            double approxAvg = Double.parseDouble(approxValue.split(" ")[0]);
            double error = Double.parseDouble(approxValue.split(" ")[2]);
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    {
        BlockBuilder blockBuilder = new BlockBuilder(SINGLE_DOUBLE);
        for (int i = start; i < start + length; i++) {
            blockBuilder.append((double) i);
        }
        return blockBuilder.build();
    }

    @Override
    public AggregationFunction getFunction()
    {
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