Enum RowError 

#[non_exhaustive]
pub enum RowError {
    ColumnNotFound(String),
    IndexOutOfRange {
        index: usize,
        len: usize,
    },
    TypeConversion {
        column: String,
        source: ConvertError,
    },
    InvalidRowFormat(String),
    #[non_exhaustive]
    Rpc {
        source: Error,
    },
}

Errors that can occur when retrieving value cells from a Row or iterating over query results.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ColumnNotFound(String)

The requested column name or index was not found in the row.

IndexOutOfRange

The requested column index was out of range.

Fields

index: usize

The index that was requested.

len: usize

The total number of columns in the row.

TypeConversion

Failed to convert/parse the cell value to the target type.

Fields

column: String

The column identifier (name or index).

source: ConvertError

The underlying parsing error.

InvalidRowFormat(String)

The JSON format returned by the service did not match expectations.

#[non_exhaustive]

Rpc

The underlying RPC failed.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

source: Error

The error returned by the service for the request.

Trait Implementations

impl Debug for RowError

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

Formats the value using the given formatter.

impl Display for RowError

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

Formats the value using the given formatter.

impl Error for RowError

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 From<Error> for RowError

fn from(source: Error) -> Self

Converts to this type from the input type.