Struct AlwaysNullGenerator 

pub struct AlwaysNullGenerator {}

The generator with always generate DataValue::Null

Trait Implementations

impl Clone for AlwaysNullGenerator

fn clone(&self) -> AlwaysNullGenerator

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AlwaysNullGenerator

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

Formats the value using the given formatter.

impl<R: Randomizer + ?Sized> GeneratorBase<R> for AlwaysNullGenerator

fn create(builder: GeneratorBuilder) -> Result<Self, BuildError>

where Self: Sized,

Create generator from builder

fn is_nullable(&self) -> bool

Can generate null flag

fn generate_without_null( &self, _rng: &mut R, _context: &DataValueMap<&str>, ) -> Result<DataValue, GenerateError>

Generate dummy data not considering nullable

fn is_required(&self) -> bool

Cannot generate null flag

fn generate( &self, rng: &mut R, context: &DataValueMap<&str>, ) -> Result<DataValue, GenerateError>

Generate dummy data considering nullable

impl PartialEq for AlwaysNullGenerator

fn eq(&self, other: &AlwaysNullGenerator) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for AlwaysNullGenerator

impl StructuralPartialEq for AlwaysNullGenerator