Struct NullGenerator 

pub struct NullGenerator { /* private fields */ }

Trait Implementations

impl ArrayGenerator for NullGenerator

fn generate( &mut self, length: RowCount, rng: &mut Xoshiro256PlusPlus, ) -> Result<Arc<dyn Array>, ArrowError>

Generate an array of the given length

fn metadata(&self) -> Option<HashMap<String, String>>

Gets metadata that should be associated with the field generated by this generator

fn data_type(&self) -> &DataType

Get the data type of the array that this generator produces

fn element_size_bytes(&self) -> Option<ByteCount>

Get the size of each element in bytes

fn generate_default( &mut self, length: RowCount, ) -> Result<Arc<dyn Array>, ArrowError>

Generate an array of the given length using a new RNG with the default seed

impl Debug for NullGenerator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.