Enum CursorBatchError 

pub enum CursorBatchError {
    ZeroDemand,
    RequiresSingleTarget {
        targets: usize,
    },
    SourceNotPerfectOrdinal {
        source: String,
    },
}

Why a cursor batch could not be reserved.

Variants

ZeroDemand

No ordinals were asked for.

RequiresSingleTarget

The reservation names several targets; a batch drives one.

Fields

targets: usize

The targets named.

SourceNotPerfectOrdinal

The source is not a perfect ordinal stream.

Fields

source: String

The source’s name.

Trait Implementations

impl Clone for CursorBatchError

fn clone(&self) -> CursorBatchError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CursorBatchError

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

Formats the value using the given formatter.

impl Display for CursorBatchError

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

Formats the value using the given formatter.

impl Eq for CursorBatchError

impl Error for CursorBatchError

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 PartialEq for CursorBatchError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for CursorBatchError