Enum pregel_rs::graph_frame::GraphFrameError

pub enum GraphFrameError {
    FromPolars(PolarsError),
    MissingColumn(MissingColumnError),
}

GraphFrameError is an enum that represents the different types of errors that can occur when working with a GraphFrame. It has three variants: DuckDbError, FromPolars and MissingColumn.

Variants

FromPolars(PolarsError)

FromPolars is a variant of GraphFrameError that represents errors that occur when converting from a PolarsError.

MissingColumn(MissingColumnError)

MissingColumn is a variant of GraphFrameError that represents errors that occur when a required column is missing from a DataFrame.

Trait Implementations

impl Debug for GraphFrameError

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

Formats the value using the given formatter.

impl Display for GraphFrameError

This is an implementation of the Display trait for the GraphFrameError enum. It allows instances of the GraphFrameError enum to be formatted as strings when they need to be displayed to the user. The fmt method takes a mutable reference to a Formatter object and returns a fmt::Result. It matches on the enum variants and calls the Display trait’s fmt method on the inner error object to format the error message.

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

Formats the value using the given formatter.

impl Error for GraphFrameError

This is an implementation of the Error trait for a custom error type GraphFrameError. It defines the source method which returns the underlying cause of the error as an optional reference to a dyn error::Error trait object. If the error is caused by a FromPolars error, it returns the reference to the underlying error. If the error is caused by a missing column, it returns None.

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

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, demand: &mut Demand<'a>)

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

Provides type based access to context intended for error reports.

impl From<PolarsError> for GraphFrameError

fn from(err: PolarsError) -> GraphFrameError

Converts to this type from the input type.