Examples of com.facebook.presto.tuple.TupleInfo

com.facebook.presto.tuple.TupleInfo
Tuple layout is:
```
 is_null_0_to_7 is_null_8_to_15 ... fixed_0 fixed_1 ... fixed_N var_off_1 var_off_2 ... var_off_N size var_0 var_1 ... var_N 
```
Note: the null flag for each field is independent of the value of the field. Specifically this api will allow you to read and write the value of fields with the null flag set.

                    .transform(new Function<TupleInfo.Type, TupleInfo>()
                    {
                        @Override
                        public TupleInfo apply(TupleInfo.Type input)
                        {
                            return new TupleInfo(input);
                        }
                    })
                    .list());
        }

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        int fieldCount = sliceInput.readUnsignedByte();
        ImmutableList.Builder<TupleInfo.Type> builder = ImmutableList.builder();
        for (int i = 0; i < fieldCount; i++) {
            builder.add(TupleInfo.Type.values()[sliceInput.readUnsignedByte()]);
        }
        return new TupleInfo(builder.build());
    }

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                .transform(new Function<Type, TupleInfo>()
                {
                    @Override
                    public TupleInfo apply(Type input)
                    {
                        return new TupleInfo(input);
                    }
                })
                .list());
        fieldNames = (fragment.getRoot() instanceof OutputNode) ?
                Optional.<List<String>>of(ImmutableList.copyOf(((OutputNode) fragment.getRoot()).getColumnNames())) :

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        ImmutableList.Builder<Type> types = ImmutableList.builder();
        for (ColumnMetadata column : columns) {
            names.add(column.getName());
            types.add(Type.fromColumnType(column.getType()));
        }
        return new Builder(new TupleInfo(types.build()), names.build());
    }

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        private static List<TupleInfo> getTupleInfos(TupleInfo tupleInfo)
        {
            ImmutableList.Builder<TupleInfo> list = ImmutableList.builder();
            for (TupleInfo.Type type : tupleInfo.getTypes()) {
                list.add(new TupleInfo(type));
            }
            return list.build();
        }

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                    .transform(new Function<TupleInfo.Type, TupleInfo>()
                    {
                        @Override
                        public TupleInfo apply(TupleInfo.Type input)
                        {
                            return new TupleInfo(input);
                        }
                    })
                    .list());
        }

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    }


    @Override
    public TupleInfo getTupleInfo()
    {
        return new TupleInfo(type.getRawType());
    }

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                .transform(new Function<TupleInfo.Type, TupleInfo>()
                {
                    @Override
                    public TupleInfo apply(TupleInfo.Type input)
                    {
                        return new TupleInfo(input);
                    }
                })
                .list();


        ImmutableList.Builder<PlanNode> sources = ImmutableList.builder();

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        int fieldCount = sliceInput.readUnsignedByte();
        ImmutableList.Builder<TupleInfo.Type> builder = ImmutableList.builder();
        for (int i = 0; i < fieldCount; i++) {
            builder.add(TupleInfo.Type.values()[sliceInput.readUnsignedByte()]);
        }
        return new TupleInfo(builder.build());
    }

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        return page;
    }


    private static boolean[] defaultSortOrder(List<TupleInfo> sourceTupleInfos, int orderByChannel)
    {
        TupleInfo orderByTupleInfo = sourceTupleInfos.get(orderByChannel);
        boolean[] sortOrder = new boolean[orderByTupleInfo.getFieldCount()];
        BooleanArrays.fill(sortOrder, true);
        return sortOrder;
    }

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