Enum HaNotificationType 

#[non_exhaustive]
pub enum HaNotificationType {
    PreEvent,
    PostEvent,
}

Whether the notification fires before (pre) or after (post) the event.

Mirrors enum ha_notification_type in mysql-server/sql/handler.h. The pre-event variant is the engine’s chance to veto by returning an error from the notification trait method; post-event is informational.

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.

PreEvent

HA_NOTIFY_PRE_EVENT: the engine is asked before the event happens.

PostEvent

HA_NOTIFY_POST_EVENT: the event already occurred.

Implementations

impl HaNotificationType

pub const fn from_raw(value: i32) -> Self

Decode the C enum ha_notification_type value. Unknown values fall back to HaNotificationType::PostEvent so the engine still observes a defined variant.

Trait Implementations

impl Clone for HaNotificationType

fn clone(&self) -> HaNotificationType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HaNotificationType

impl Debug for HaNotificationType

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

Formats the value using the given formatter.

impl Eq for HaNotificationType

impl PartialEq for HaNotificationType

fn eq(&self, other: &HaNotificationType) -> 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 StructuralPartialEq for HaNotificationType