Enum BackendChangesError 

#[non_exhaustive]
pub enum BackendChangesError<E> {
    TooManyChanges {
        limit: u64,
    },
    Other(E),
}

Error type returned by JmapBackend::get_changes and JmapBackend::query_changes.

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.

TooManyChanges

The sinceState is too old or the server cannot calculate the full set of intermediate states. Maps to tooManyChanges in the response with the given suggested limit. Use limit: 0 for cannotCalculateChanges.

Fields

limit: u64

Other(E)

An unexpected storage-layer error.

Trait Implementations

impl<E: Debug> Debug for BackendChangesError<E>

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

Formats the value using the given formatter.

impl<E: Display> Display for BackendChangesError<E>

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

Formats the value using the given formatter.

impl<E: Error + 'static> Error for BackendChangesError<E>

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<E: Error> From<BackendChangesError<E>> for JmapError

fn from(e: BackendChangesError<E>) -> Self

Converts to this type from the input type.

impl<E> From<E> for BackendChangesError<E>

fn from(e: E) -> Self

Converts to this type from the input type.