Enum DataflowError

pub enum DataflowError {
    DecodeError(Box<DecodeError>),
    EvalError(Box<EvalError>),
    SourceError(Box<SourceError>),
    EnvelopeError(Box<EnvelopeError>),
}

An error that’s destined to be presented to the user in a differential dataflow collection. For example, a divide by zero will be visible in the error collection for a particular row.

All of the variants are boxed to minimize the memory size of DataflowError. This type is likely to appear in Result<Row, DataflowError>s on high-throughput code paths, so keeping its size less than or equal to that of Row is important to ensure we are not wasting memory.

Variants

DecodeError(Box<DecodeError>)

EvalError(Box<EvalError>)

SourceError(Box<SourceError>)

EnvelopeError(Box<EnvelopeError>)

Trait Implementations

impl Arbitrary for DataflowError

type Parameters = (<Box<DecodeError> as Arbitrary>::Parameters, <Box<EvalError> as Arbitrary>::Parameters, <Box<SourceError> as Arbitrary>::Parameters, <Box<EnvelopeError> as Arbitrary>::Parameters)

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Union<BoxedStrategy<DataflowError>>

The type of Strategy used to generate values of type Self.

fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl Clone for DataflowError

fn clone(&self) -> DataflowError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Columnation for DataflowError

type InnerRegion = DataflowErrorRegion

The type of region capable of absorbing allocations owned by the Self type. Note: not allocations of Self, but of the things that it owns.

impl Debug for DataflowError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DataflowError

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DataflowError

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

Formats the value using the given formatter.

impl Error for DataflowError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl<T> From<DataflowError> for StorageError<T>

fn from(error: DataflowError) -> Self

Converts to this type from the input type.

impl From<DecodeError> for DataflowError

fn from(e: DecodeError) -> Self

Converts to this type from the input type.

impl From<EnvelopeError> for DataflowError

fn from(e: EnvelopeError) -> Self

Converts to this type from the input type.

impl From<EvalError> for DataflowError

fn from(e: EvalError) -> Self

Converts to this type from the input type.

impl From<SourceError> for DataflowError

fn from(e: SourceError) -> Self

Converts to this type from the input type.

impl Hash for DataflowError

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for DataflowError

fn cmp(&self, other: &DataflowError) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for DataflowError

fn eq(&self, other: &DataflowError) -> 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 PartialOrd for DataflowError

fn partial_cmp(&self, other: &DataflowError) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl RustType<ProtoDataflowError> for DataflowError

fn into_proto(&self) -> ProtoDataflowError

Convert a Self into a Proto value.

fn from_proto(proto: ProtoDataflowError) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.

impl Serialize for DataflowError

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DataflowError

impl StructuralPartialEq for DataflowError