Struct MessageCacheKey 

pub(crate) struct MessageCacheKey {
    pub(crate) transaction_id: Option<OwnedTransactionId>,
    pub(crate) event_id: Option<OwnedEventId>,
    pub(crate) is_edited: bool,
}

The data used as a cache key for messages.

This is used when there is no reliable way to detect if the content of a message changed. For example, the URI of a media file might change between a local echo and a remote echo, but we do not need to reload the media in this case, and we have no other way to know that both URIs point to the same file.

Fields

transaction_id: Option<OwnedTransactionId>

The transaction ID of the event.

Local echo should keep its transaction ID after the message is sent, so we do not need to reload the message if it did not change.

event_id: Option<OwnedEventId>

The global ID of the event.

Local echo that was sent and remote echo should have the same event ID, so we do not need to reload the message if it did not change.

is_edited: bool

Whether the message is edited.

The message must be reloaded when it was edited.

Implementations

impl MessageCacheKey

pub(crate) fn should_reload(&self, new: &MessageCacheKey) -> bool

Whether the given new MessageCacheKey should trigger a reload of the message compared to this one.

Trait Implementations

impl Clone for MessageCacheKey

fn clone(&self) -> MessageCacheKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageCacheKey

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

Formats the value using the given formatter.

impl Default for MessageCacheKey

fn default() -> MessageCacheKey

Returns the “default value” for a type.